Author: "Busca, Nicolás G." - Searchworks@Jio Institute Digital Library Search Results

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135 results on '"Busca, Nicolás G."'

1. The Sloan Digital Sky Survey Quasar Catalog: Sixteenth Data Release

Author: Lyke, Brad W., Higley, Alexandra N., McLane, J. N., Schurhammer, Danielle P., Myers, Adam D., Ross, Ashley J., Dawson, Kyle, Chabanier, Solène, Martini, Paul, Busca, Nicolás G., Bourboux, Hélion du Mas des, Salvato, Mara, Streblyanska, Alina, Zarrouk, Pauline, Burtin, Etienne, Anderson, Scott F., Bautista, Julian, Bizyaev, Dmitry, Brandt, W. N., Brinkmann, Jonathan, Brownstein, Joel R., Comparat, Johan, Green, Paul, de la Macorra, Axel, Gutiérrez, Andrea Muñoz, Hou, Jiamin, Newman, Jeffrey A., Palanque-Delabrouille, Nathalie, Pâris, Isabelle, Percival, Will J., Petitjean, Patrick, Rich, James, Rossi, Graziano, Schneider, Donald P., Smith, Alexander, Vivek, M., and Weaver, Benjamin Alan
Subjects: Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present the final Sloan Digital Sky Survey IV (SDSS-IV) quasar catalog from Data Release 16 of the extended Baryon Oscillation Spectroscopic Survey (eBOSS). This catalog comprises the largest selection of spectroscopically confirmed quasars to date. The full catalog includes two sub-catalogs: a "superset" of all SDSS-IV/eBOSS objects targeted as quasars containing 1,440,615 observations and a quasar-only catalog containing 750,414 quasars, including 225,082 new quasars appearing in an SDSS data release for the first time, as well as known quasars from SDSS-I/II/III. We present automated identification and redshift information for these quasars alongside data from visual inspections for 320,161 spectra. The quasar-only catalog is estimated to be 99.8% complete with 0.3% to 1.3% contamination. Automated and visual inspection redshifts are supplemented by redshifts derived via principal component analysis and emission lines. We include emission line redshifts for H$\alpha$, H$\beta$, Mg II, C III], C IV, and Ly$\alpha$. Identification and key characteristics generated by automated algorithms are presented for 99,856 Broad Absorption Line quasars and 35,686 Damped Lyman Alpha quasars. In addition to SDSS photometric data, we also present multi-wavelength data for quasars from GALEX, UKIDSS, WISE, FIRST, ROSAT/2RXS, XMM-Newton, and Gaia. Calibrated digital optical spectra for these quasars can be obtained from the SDSS Science Archive Server., Comment: 32 pages, 13 figures, 6 tables. Accepted to ApJS. Catalog files are available at https://data.sdss.org/sas/dr16/eboss/qso/DR16Q/ . A summary of all SDSS BAO and RSD measurements with legacy figures can be found at https://www.sdss.org/science/final-bao-and-rsd-measurements/ while full cosmological interpretation of these can be found at https://www.sdss.org/science/cosmology-results-from-eboss/
Published: 2020
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2. Baryon acoustic oscillations at z = 2.34 from the correlations of Ly$\alpha$ absorption in eBOSS DR14

Author: Agathe, Victoria de Sainte, Balland, Christophe, Bourboux, Hélion du Mas des, Busca, Nicolás G., Blomqvist, Michael, Guy, Julien, Rich, James, Font-Ribera, Andreu, Pieri, Matthew M., Bautista, Julian E., Dawson, Kyle, Goff, Jean-Marc Le, de la Macorra, Axel, Palanque-Delabrouille, Nathalie, Percival, Will J., Pérez-Ràfols, Ignasi, Schneider, Donald P., Slosar, Anže, and Yèche, Christophe
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We measure the imprint of primordial baryon acoustic oscillations (BAO) in the correlation function of Ly$\alpha$ absorption in quasar spectra from the Baryon Oscillation Spectroscopic Survey (BOSS) and the extended BOSS (eBOSS) in Data Release 14 (DR14) of the Sloan Digital Sky Survey (SDSS)-IV. In addition to 179,965 spectra with absorption in the Lyman-$\alpha$ (Ly$\alpha$) region, we use, for the first time, Ly$\alpha$ absorption in the Lyman-$\beta$ region of 56,154 spectra. We measure the Hubble distance, $D_H$, and the comoving angular diameter distance, $D_M$, relative to the sound horizon at the drag epoch $r_d$ at an effective redshift $z=2.34$. Using a physical model of the correlation function outside the BAO peak, we find $D_H(2.34)/r_d=8.86\pm 0.29$ and $D_M(2.34)/r_d=37.41\pm 1.86$, within 1$\sigma$ from the flat-$\Lambda$CDM model consistent with CMB anisotropy measurements. With the addition of polynomial "broadband" terms, the results remain within one standard deviation of the CMB-inspired model. Combined with the quasar-Ly$\alpha$ cross-correlation measurement presented in a companion paper Blomqvist19, the BAO measurements at $z=2.35$ are within 1.7$\sigma$ of the predictions of this model., Comment: accepted by A&A
Published: 2019
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3. Baryon acoustic oscillations from the cross-correlation of Ly$\alpha$ absorption and quasars in eBOSS DR14

Author: Blomqvist, Michael, Bourboux, Hélion du Mas des, Busca, Nicolás G., Agathe, Victoria de Sainte, Rich, James, Balland, Christophe, Bautista, Julian E., Dawson, Kyle, Font-Ribera, Andreu, Guy, Julien, Goff, Jean-Marc Le, Palanque-Delabrouille, Nathalie, Percival, Will J., Pérez-Ràfols, Ignasi, Pieri, Matthew M., Schneider, Donald P., Slosar, Anže, and Yèche, Christophe
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present a measurement of the baryon acoustic oscillation (BAO) scale at redshift $z=2.35$ from the three-dimensional correlation of Lyman-$\alpha$ (Ly$\alpha$) forest absorption and quasars. The study uses 266,590 quasars in the redshift range $1.77
Published: 2019
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4. The extended Baryon Oscillation Spectroscopic Survey: measuring the cross-correlation between the MgII flux transmission field and quasars and galaxies at $z=0.59$

Author: Bourboux, Hélion du Mas des, Dawson, Kyle S., Busca, Nicolás G., Blomqvist, Michael, Agathe, Victoria de Sainte, Balland, Christophe, Bautista, Julian E., Guy, Julien, Kamble, Vikrant, Myers, Adam D., Pérez-Ràfols, Ignasi, Pieri, Matthew M., Rich, James, Schneider, Donald P., and Slosar, Anže
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present the first attempt at measuring the baryonic acoustic oscillations (BAO) in the large scale cross-correlation between the magnesium-II doublet (MgII) flux transmission field and the position of quasar and galaxy tracers. The MgII flux transmission continuous field at $0.3 < z < 1.6$ is measured from 500,589 quasar spectra obtained in the Baryonic Oscillation Spectroscopic Survey (BOSS) and the extended BOSS (eBOSS). The position of 246,697 quasar tracers and 1,346,776 galaxy tracers are extracted from the Sloan Digital Sky Survey (SDSS) I, II, BOSS and eBOSS catalogs. In addition to measuring the cosmological BAO scale and the biased matter density correlation, this study allows tests and improvements to cosmological Lyman-$\alpha$ analyses. A feature consistent with that of the BAO is detected at a significance of $\Delta \chi^{2} = 7.25$. The measured MgII linear transmission bias parameters are $b_{\mathrm{MgII(2796)}} (z = 0.59) = (-6.82 \pm 0.54) \, \times 10^{-4}$ and $b_{\mathrm{MgII(2804)}} (z = 0.59) = (-5.55 \pm 0.46) \, \times 10^{-4}$, and the MgI bias is $b_{\mathrm{MgI(2853)}} (z = 0.59) = (-1.48 \pm 0.24) \, \times 10^{-4}$. Their redshift evolution is characterized by the power-law index: $\gamma_{\mathrm{Mg}} = 3.36 \pm 0.46$. These measurements open a new window towards using BAO from flux transmission at $z < 1$ in the final eBOSS sample and in the upcoming sample from the Dark Energy Spectroscopic Instrument., Comment: 16 pages, 9 figures, matches the published version by ApJ
Published: 2019
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5. The triply-ionized carbon forest from eBOSS: cosmological correlations with quasars in SDSS-IV DR14

Author: Blomqvist, Michael, Pieri, Matthew M., Bourboux, Hélion du Mas des, Busca, Nicolás G., Slosar, Anže, Bautista, Julian E., Brinkmann, Jonathan, Brownstein, Joel R., Dawson, Kyle, Agathe, Victoria de Sainte, Guy, Julien, Percival, Will J., Pérez-Ràfols, Ignasi, Rich, James, and Schneider, Donald P.
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present measurements of the cross-correlation of the triply-ionized carbon (CIV) forest with quasars using Sloan Digital Sky Survey Data Release 14. The study exploits a large sample of new quasars from the first two years of observations by the Extended Baryon Oscillation Spectroscopic Survey (eBOSS). The CIV forest is a weaker tracer of large-scale structure than the Ly$\alpha$ forest, but benefits from being accessible at redshifts $z<2$ where the quasar number density from eBOSS is high. Our data sample consists of 287,651 CIV forest quasars in the redshift range $1.4
Published: 2018
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6. Quasar -- CIV forest cross-correlation with SDSS DR12

Author: Gontcho, Satya Gontcho A, Miralda-Escudé, Jordi, Font-Ribera, Andreu, Blomqvist, Michael, Busca, Nicolás G., and Rich, James
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present a new determination of the large-scale clustering of the CIV forest (i.e., the absorption due to all CIV absorbers) using its cross-correlation with quasars in the Sloan Digital Sky Survey (SDSS) Data Release 12 (DR12). We fit a linear bias model to the measured cross-correlation. We find that the transmission bias of the CIV forest, $b_{Fc}$, at a mean redshift of $z=2.3$, obeys the relation $(1+\beta_c)b_{F c} = -0.024 \pm 0.003$. Here, $\beta_{c}$ is the linear redshift space distortion parameter of the CIV absorption, which can only be poorly determined at $\beta_c=1.1\pm 0.6$ from our data. This transmission bias is related to the bias of CIV absorbers and their host halos through the effective mean optical depth of the CIV forest, $\bar\tau_c$. Estimating a value $\bar \tau_c(z) \simeq 0.01$ from previous studies of the CIV equivalent width distribution, our measurement implies a CIV absorber bias near unity, with a large error due to uncertainties in both $\beta_c$ and $\bar\tau_c$. This makes it compatible with the higher DLA bias $b_{\rm DLA}\simeq 2$ measured previously from the cross-correlation of DLAs and the Lyman-$\alpha$ forest. We discuss the implications of the CIV absorber bias for the mass distribution of their host halos. More accurate determinations of $\bar \tau_c(z)$ and $\beta_c$ are necessary to obtain a more robust measurement of this CIV absorber bias.
Published: 2017
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7. Baryon acoustic oscillations from the complete SDSS-III Ly$\alpha$-quasar cross-correlation function at $z=2.4$

Author: Bourboux, Hélion du Mas des, Goff, Jean-Marc Le, Blomqvist, Michael, Busca, Nicolás G., Guy, Julien, Rich, James, Yèche, Christophe, Bautista, Julian E., Burtin, Étienne, Dawson, Kyle S., Eisenstein, Daniel J., Font-Ribera, Andreu, Kirkby, David, Miralda-Escudé, Jordi, Noterdaeme, Pasquier, Pâris, Isabelle, Petitjean, Patrick, Pérez-Ràfols, Ignasi, Pieri, Matthew M., Ross, Nicholas P., Schlegel, David J., Schneider, Donald P., Slosar, Anže, Weinberg, David H., and Zarrouk, Pauline
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present a measurement of baryon acoustic oscillations (BAO) in the cross-correlation of quasars with the Ly$\alpha$-forest flux-transmission at a mean redshift $z=2.40$. The measurement uses the complete SDSS-III data sample: 168,889 forests and 234,367 quasars from the SDSS Data Release DR12. In addition to the statistical improvement on our previous study using DR11, we have implemented numerous improvements at the analysis level allowing a more accurate measurement of this cross-correlation. We also developed the first simulations of the cross-correlation allowing us to test different aspects of our data analysis and to search for potential systematic errors in the determination of the BAO peak position. We measure the two ratios $D_{H}(z=2.40)/r_{d} = 9.01 \pm 0.36$ and $D_{M}(z=2.40)/r_{d} = 35.7 \pm 1.7$, where the errors include marginalization over the non-linear velocity of quasars and the metal - quasar cross-correlation contribution, among other effects. These results are within $1.8\sigma$ of the prediction of the flat-$\Lambda$CDM model describing the observed CMB anisotropies. We combine this study with the Ly$\alpha$-forest auto-correlation function [2017A&A...603A..12B], yielding $D_{H}(z=2.40)/r_{d} = 8.94 \pm 0.22$ and $D_{M}(z=2.40)/r_{d} = 36.6 \pm 1.2$, within $2.3\sigma$ of the same flat-$\Lambda$CDM model., Comment: accepted by A&A
Published: 2017
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8. The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment

Author: Abolfathi, Bela, Aguado, D. S., Aguilar, Gabriela, Prieto, Carlos Allende, Almeida, Andres, Ananna, Tonima Tasnim, Anders, Friedrich, Anderson, Scott F., Andrews, Brett H., Anguiano, Borja, Aragon-Salamanca, Alfonso, Argudo-Fernandez, Maria, Armengaud, Eric, Ata, Metin, Aubourg, Eric, Avila-Reese, Vladimir, Badenes, Carles, Bailey, Stephen, Balland, Christophe, Barger, Kathleen A., Barrera-Ballesteros, Jorge, Bartosz, Curtis, Bastien, Fabienne, Bates, Dominic, Baumgarten, Falk, Bautista, Julian, Beaton, Rachael, Beers, Timothy C., Belfiore, Francesco, Bender, Chad F., Bernardi, Mariangela, Bershady, Matthew A., Beutler, Florian, Bird, Jonathan C., Bizyaev, Dmitry, Blanc, Guillermo A., Blanton, Michael R., Blomqvist, Michael, Bolton, Adam S., Boquien, Mederic, Borissova, Jura, Bovy, Jo, Diaz, Christian Andres Bradna, Brandt, William Nielsen, Brinkmann, Jonathan, Brownstein, Joel R., Bundy, Kevin, Burgasser, Adam J., Burtin, Etienne, Busca, Nicolas G., Canas, Caleb I., Cano-Diaz, Mariana, Cappellari, Michele, Carrera, Ricardo, Casey, Andrew R., Sodi, Bernardo Cervantes, Chen, Yanping, Cherinka, Brian, Chiappini, Cristina, Choi, Peter Doohyun, Chojnowski, Drew, Chuang, Chia-Hsun, Chung, Haeun, Clerc, Nicolas, Cohen, Roger E., Comerford, Julia M., Comparat, Johan, Nascimento, Janaina Correa do, da Costa, Luiz, Cousinou, Marie-Claude, Covey, Kevin, Crane, Jeffrey D., Cruz-Gonzalez, Irene, Cunha, Katia, Ilha, Gabriele da Silva, Damke, Guillermo J., Darling, Jeremy, Davidson Jr., James W., Dawson, Kyle, Lizaola, Miguel Angel C. de Icaza, de la Macorra, Axel, de la Torre, Sylvain, De Lee, Nathan, Agathe, Victoria de Sainte, Machado, Alice Deconto, Dell'Agli, Flavia, Delubac, Timothee, Diamond-Stanic, Aleksandar M., Donor, John, Downes, Juan Jose, Drory, Niv, Bourboux, Helion du Mas des, Duckworth, Christopher J., Dwelly, Tom, Dyer, Jamie, Ebelke, Garrett, Eigenbrot, Arthur Davis, Eisenstein, Daniel J., Elsworth, Yvonne P., Emsellem, Eric, Eracleous, Mike, Erfanianfar, Ghazaleh, Escoffier, Stephanie, Fan, Xiaohui, Alvar, Emma Fernandez, Fernandez-Trincado, J. G., Cirolini, Rafael Fernando, Feuillet, Diane, Finoguenov, Alexis, Fleming, Scott W., Font-Ribera, Andreu, Freischlad, Gordon, Frinchaboy, Peter, Fu, Hai, Chew, Yilen Gomez Maqueo, Galbany, Lluis, Perez, Ana E. Garcia, Garcia-Dias, R., Garcia-Hernandez, D. A., Oehmichen, Luis Alberto Garma, Gaulme, Patrick, Gelfand, Joseph, Gil-Marin, Hector, Gillespie, Bruce A., Goddard, Daniel, Hernandez, Jonay I. Gonzalez, Gonzalez-Perez, Violeta, Grabowski, Kathleen, Green, Paul J., Grier, Catherine J., Gueguen, Alain, Guo, Hong, Guy, Julien, Hagen, Alex, Hall, Patrick, Harding, Paul, Hasselquist, Sten, Hawley, Suzanne, Hayes, Christian R., Hearty, Fred, Hekker, Saskia, Hernandez, Jesus, Toledo, Hector Hernandez, Hogg, David W., Holley-Bockelmann, Kelly, Holtzman, Jon, Hou, Jiamin, Hsieh, Bau-Ching, Hunt, Jason A. S., Hutchinson, Timothy A., Hwang, Ho Seong, Angel, Camilo Eduardo Jimenez, Johnson, Jennifer A., Jones, Amy, Jonsson, Henrik, Jullo, Eric, Khan, Fahim Sakil, Kinemuchi, Karen, Kirkby, David, Kirkpatrick IV, Charles C., Kitaura, Francisco-Shu, Knapp, Gillian R., Kneib, Jean-Paul, Kollmeier, Juna A., Lacerna, Ivan, Lane, Richard R., Lang, Dustin, Law, David R., Goff, Jean-Marc Le, Lee, Young-Bae, Li, Hongyu, Li, Cheng, Lian, Jianhui, Liang, Yu, Lima, Marcos, Lin, Lihwai, Long, Dan, Lucatello, Sara, Lundgren, Britt, Mackereth, J. Ted, MacLeod, Chelsea L., Mahadevan, Suvrath, Maia, Marcio Antonio Geimba, Majewski, Steven, Manchado, Arturo, Maraston, Claudia, Mariappan, Vivek, Marques-Chaves, Rui, Masseron, Thomas, Masters, Karen L., McDermid, Richard M., McGreer, Ian D., Melendez, Matthew, Meneses-Goytia, Sofia, Merloni, Andrea, Merrifield, Michael R., Meszaros, Szabolcs, Meza, Andres, Minchev, Ivan, Minniti, Dante, Mueller, Eva-Maria, Muller-Sanchez, Francisco, Muna, Demitri, Munoz, Ricardo R., Myers, Adam D., Nair, Preethi, Nandra, Kirpal, Ness, Melissa, Newman, Jeffrey A., Nichol, Robert C., Nidever, David L., Nitschelm, Christian, Noterdaeme, Pasquier, O'Connell, Julia, Oelkers, Ryan James, Oravetz, Audrey, Oravetz, Daniel, Ortiz, Erik Aquino, Osorio, Yeisson, Pace, Zach, Padilla, Nelson, Palanque-Delabrouille, Nathalie, Palicio, Pedro Alonso, Pan, Hsi-An, Pan, Kaike, Parikh, Taniya, Paris, Isabelle, Park, Changbom, Peirani, Sebastien, Pellejero-Ibanez, Marcos, Penny, Samantha, Percival, Will J., Perez-Fournon, Ismael, Petitjean, Patrick, Pieri, Matthew M., Pinsonneault, Marc, Pisani, Alice, Prada, Francisco, Prakash, Abhishek, Queiroz, Anna Barbara de Andrade, Raddick, M. Jordan, Raichoor, Anand, Rembold, Sandro Barboza, Richstein, Hannah, Riffel, Rogemar A., Riffel, Rogerio, Rix, Hans-Walter, Robin, Annie C., Torres, Sergio Rodriguez, Roman-Zuniga, Carlos, Ross, Ashley J., Rossi, Graziano, Ruan, John, Ruggeri, Rossana, Ruiz, Jose, Salvato, Mara, Sanchez, Ariel G., Sanchez, Sebastian F., Almeida, Jorge Sanchez, Sanchez-Gallego, Jose R., Rojas, Felipe Antonio Santana, Santiago, Basilio Xavier, Schiavon, Ricardo P., Schimoia, Jaderson S., Schlafly, Edward, Schlegel, David, Schneider, Donald P., Schuster, William J., Schwope, Axel, Seo, Hee-Jong, Serenelli, Aldo, Shen, Shiyin, Shen, Yue, Shetrone, Matthew, Shull, Michael, Aguirre, Victor Silva, Simon, Joshua D., Skrutskie, Mike, Slosar, Anze, Smethurst, Rebecca, Smith, Verne, Sobeck, Jennifer, Somers, Garrett, Souter, Barbara J., Souto, Diogo, Spindler, Ashley, Stark, David V., Stassun, Keivan, Steinmetz, Matthias, Stello, Dennis, Storchi-Bergmann, Thaisa, Streblyanska, Alina, Stringfellow, Guy, Suarez, Genaro, Sun, Jing, Szigeti, Laszlo, Taghizadeh-Popp, Manuchehr, Talbot, Michael S., Tang, Baitian, Tao, Charling, Tayar, Jamie, Tembe, Mita, Teske, Johanna, Thaker, Aniruddha R., Thomas, Daniel, Tissera, Patricia, Tojeiro, Rita, Tremonti, Christy, Troup, Nicholas W., Urry, Meg, Valenzuela, O., Bosch, Remco van den, Vargas-Gonzalez, Jaime, Vargas-Magana, Mariana, Vazquez, Jose Alberto, Villanova, Sandro, Vogt, Nicole, Wake, David, Wang, Yuting, Weaver, Benjamin Alan, Weijmans, Anne-Marie, Weinberg, David H., Westfall, Kyle B., Whelan, David G., Wilcots, Eric, Wild, Vivienne, Williams, Rob A., Wilson, John, Wood-Vasey, W. M., Wylezalek, Dominika, Xiao, Ting, Yan, Renbin, Yang, Meng, Ybarra, Jason E., Yeche, Christophe, Zakamska, Nadia, Zamora, Olga, Zarrouk, Pauline, Zasowski, Gail, Zhang, Kai, Zhao, Cheng, Zhao, Gong-Bo, Zheng, Zheng, Zhou, Zhi-Min, Zhu, Guangtun, Zinn, Joel C., and Zou, Hu
Subjects: Astrophysics - Astrophysics of Galaxies, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since July 2014. This paper describes the second data release from this phase, and the fourteenth from SDSS overall (making this, Data Release Fourteen or DR14). This release makes public data taken by SDSS-IV in its first two years of operation (July 2014-2016). Like all previous SDSS releases, DR14 is cumulative, including the most recent reductions and calibrations of all data taken by SDSS since the first phase began operations in 2000. New in DR14 is the first public release of data from the extended Baryon Oscillation Spectroscopic Survey (eBOSS); the first data from the second phase of the Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE-2), including stellar parameter estimates from an innovative data driven machine learning algorithm known as "The Cannon"; and almost twice as many data cubes from the Mapping Nearby Galaxies at APO (MaNGA) survey as were in the previous release (N = 2812 in total). This paper describes the location and format of the publicly available data from SDSS-IV surveys. We provide references to the important technical papers describing how these data have been taken (both targeting and observation details) and processed for scientific use. The SDSS website (www.sdss.org) has been updated for this release, and provides links to data downloads, as well as tutorials and examples of data use. SDSS-IV is planning to continue to collect astronomical data until 2020, and will be followed by SDSS-V., Comment: SDSS-IV collaboration alphabetical author data release paper. DR14 happened on 31st July 2017. 19 pages, 5 figures. Accepted by ApJS on 28th Nov 2017 (this is the "post-print" and "post-proofs" version; minor corrections only from v1, and most of errors found in proofs corrected)
Published: 2017
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9. Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe

Author: Blanton, Michael R., Bershady, Matthew A., Abolfathi, Bela, Albareti, Franco D., Prieto, Carlos Allende, Almeida, Andres, Alonso-García, Javier, Anders, Friedrich, Anderson, Scott F., Andrews, Brett, Aquino-Ortíz, Erik, Aragón-Salamanca, Alfonso, Argudo-Fernández, Maria, Armengaud, Eric, Aubourg, Eric, Avila-Reese, Vladimir, Badenes, Carles, Bailey, Stephen, Barger, Kathleen A., Barrera-Ballesteros, Jorge, Bartosz, Curtis, Bates, Dominic, Baumgarten, Falk, Bautista, Julian, Beaton, Rachael, Beers, Timothy C., Belfiore, Francesco, Bender, Chad F., Berlind, Andreas A., Bernardi, Mariangela, Beutler, Florian, Bird, Jonathan C., Bizyaev, Dmitry, Blanc, Guillermo A., Blomqvist, Michael, Bolton, Adam S., Boquien, Médéric, Borissova, Jura, Bosch, Remco van den, Bovy, Jo, Brandt, William N., Brinkmann, Jonathan, Brownstein, Joel R., Bundy, Kevin, Burgasser, Adam J., Burtin, Etienne, Busca, Nicolás G., Cappellari, Michele, Carigi, Maria Leticia Delgado, Carlberg, Joleen K., Rosell, Aurelio Carnero, Carrera, Ricardo, Cherinka, Brian, Cheung, Edmond, Chew, Yilen Gómez Maqueo, Chiappini, Cristina, Choi, Peter Doohyun, Chojnowski, Drew, Chuang, Chia-Hsun, Chung, Haeun, Cirolini, Rafael Fernando, Clerc, Nicolas, Cohen, Roger E., Comparat, Johan, da Costa, Luiz, Cousinou, Marie-Claude, Covey, Kevin, Crane, Jeffrey D., Croft, Rupert A. C., Cruz-Gonzalez, Irene, Cuadra, Daniel Garrido, Cunha, Katia, Damke, Guillermo J., Darling, Jeremy, Davies, Roger, Dawson, Kyle, de la Macorra, Axel, De Lee, Nathan, Delubac, Timothée, Di Mille, Francesco, Diamond-Stanic, Aleks, Cano-Díaz, Mariana, Donor, John, Downes, Juan José, Drory, Niv, Bourboux, Hélion du Mas des, Duckworth, Christopher J., Dwelly, Tom, Dyer, Jamie, Ebelke, Garrett, Eisenstein, Daniel J., Emsellem, Eric, Eracleous, Mike, Escoffier, Stephanie, Evans, Michael L., Fan, Xiaohui, Fernández-Alvar, Emma, Fernandez-Trincado, J. G., Feuillet, Diane K., Finoguenov, Alexis, Fleming, Scott W., Font-Ribera, Andreu, Fredrickson, Alexander, Freischlad, Gordon, Frinchaboy, Peter M., Galbany, Lluís, Garcia-Dias, R., García-Hernández, D. A., Gaulme, Patrick, Geisler, Doug, Gelfand, Joseph D., Gil-Marín, Héctor, Gillespie, Bruce A., Goddard, Daniel, Gonzalez-Perez, Violeta, Grabowski, Kathleen, Green, Paul J., Grier, Catherine J., Gunn, James E., Guo, Hong, Guy, Julien, Hagen, Alex, Hahn, ChangHoon, Hall, Matthew, Harding, Paul, Hasselquist, Sten, Hawley, Suzanne L., Hearty, Fred, Hernández, Jonay I. Gonzalez, Ho, Shirley, Hogg, David W., Holley-Bockelmann, Kelly, Holtzman, Jon A., Holzer, Parker H., Huehnerhoff, Joseph, Hutchinson, Timothy A., Hwang, Ho Seong, Ibarra-Medel, Héctor J., Ilha, Gabriele da Silva, Ivans, Inese I., Ivory, KeShawn, Jackson, Kelly, Jensen, Trey W., Johnson, Jennifer A., Jones, Amy, Jönsson, Henrik, Jullo, Eric, Kamble, Vikrant, Kinemuchi, Karen, Kirkby, David, Kitaura, Francisco-Shu, Klaene, Mark, Knapp, Gillian R., Kneib, Jean-Paul, Kollmeier, Juna A., Lacerna, Ivan, Lane, Richard R., Lang, Dustin, Law, David R., Lazarz, Daniel, Goff, Jean-Marc Le, Liang, Fu-Heng, Li, Cheng, LI, Hongyu, Lima, Marcos, Lin, Lihwai, Lin, Yen-Ting, de Lis, Sara Bertran, Liu, Chao, Lizaola, Miguel Angel C. de Icaza, Long, Dan, Lucatello, Sara, Lundgren, Britt, MacDonald, Nicholas K., Machado, Alice Deconto, MacLeod, Chelsea L., Mahadevan, Suvrath, Maia, Marcio Antonio Geimba, Maiolino, Roberto, Majewski, Steven R., Malanushenko, Elena, Malanushenko, Viktor, Manchado, Arturo, Mao, Shude, Maraston, Claudia, Marques-Chaves, Rui, Masters, Karen L., McBride, Cameron K., McDermid, Richard M., McGrath, Brianne, McGreer, Ian D., Peña, Nicolás Medina, Melendez, Matthew, Merloni, Andrea, Merrifield, Michael R., Meszaros, Szabolcs, Meza, Andres, Minchev, Ivan, Minniti, Dante, Miyaji, Takamitsu, More, Surhud, Mulchaey, John, Müller-Sánchez, Francisco, Muna, Demitri, Munoz, Ricardo R., Myers, Adam D., Nair, Preethi, Nandra, Kirpal, Nascimento, Janaina Correa do, Negrete, Alenka, Ness, Melissa, Newman, Jeffrey A., Nichol, Robert C., Nidever, David L., Nitschelm, Christian, Ntelis, Pierros, O'Connell, Julia E., Oelkers, Ryan J., Oravetz, Audrey, Oravetz, Daniel, Pace, Zach, Padilla, Nelson, Palanque-Delabrouille, Nathalie, Palicio, Pedro Alonso, Pan, Kaike, Parikh, Taniya, Pâris, Isabelle, Park, Changbom, Patten, Alim Y., Peirani, Sebastien, Pellejero-Ibanez, Marcos, Penny, Samantha, Percival, Will J., Perez-Fournon, Ismael, Petitjean, Patrick, Pieri, Matthew M., Pinsonneault, Marc, Pisani, Alice, Poleski, Radosław, Prada, Francisco, Prakash, Abhishek, Queiroz, Anna Bárbara de Andrade, Raddick, M. Jordan, Raichoor, Anand, Rembold, Sandro Barboza, Richstein, Hannah, Riffel, Rogemar A., Riffel, Rogério, Rix, Hans-Walter, Robin, Annie C., Rockosi, Constance M., Rodríguez-Torres, Sergio, Roman-Lopes, A., Román-Zúñiga, Carlos, Rosado, Margarita, Ross, Ashley J., Rossi, Graziano, Ruan, John, Ruggeri, Rossana, Rykoff, Eli S., Salazar-Albornoz, Salvador, Salvato, Mara, Sánchez, Ariel G., Aguado, David Sánchez, Sánchez-Gallego, José R., Santana, Felipe A., Santiago, Basílio Xavier, Sayres, Conor, Schiavon, Ricardo P., Schimoia, Jaderson da Silva, Schlafly, Edward F., Schlegel, David J., Schneider, Donald P., Schultheis, Mathias, Schuster, William J., Schwope, Axel, Seo, Hee-Jong, Shao, Zhengyi, Shen, Shiyin, Shetrone, Matthew, Shull, Michael, Simon, Joshua D., Skinner, Danielle, Skrutskie, M. F., Slosar, Anže, Smith, Verne V., Sobeck, Jennifer S., Sobreira, Flavia, Somers, Garrett, Souto, Diogo, Stark, David V., Stassun, Keivan, Stauffer, Fritz, Steinmetz, Matthias, Storchi-Bergmann, Thaisa, Streblyanska, Alina, Stringfellow, Guy S., Suárez, Genaro, Sun, Jing, Suzuki, Nao, Szigeti, Laszlo, Taghizadeh-Popp, Manuchehr, Tang, Baitian, Tao, Charling, Tayar, Jamie, Tembe, Mita, Teske, Johanna, Thakar, Aniruddha R., Thomas, Daniel, Thompson, Benjamin A., Tinker, Jeremy L., Tissera, Patricia, Tojeiro, Rita, Toledo, Hector Hernandez, de la Torre, Sylvain, Tremonti, Christy, Troup, Nicholas W., Valenzuela, Octavio, Valpuesta, Inma Martinez, Vargas-González, Jaime, Vargas-Magaña, Mariana, Vazquez, Jose Alberto, Villanova, Sandro, Vivek, M., Vogt, Nicole, Wake, David, Walterbos, Rene, Wang, Yuting, Weaver, Benjamin Alan, Weijmans, Anne-Marie, Weinberg, David H., Westfall, Kyle B., Whelan, David G., Wild, Vivienne, Wilson, John, Wood-Vasey, W. M., Wylezalek, Dominika, Xiao, Ting, Yan, Renbin, Yang, Meng, Ybarra, Jason E., Yèche, Christophe, Zakamska, Nadia, Zamora, Olga, Zarrouk, Pauline, Zasowski, Gail, Zhang, Kai, Zhao, Gong-Bo, Zheng, Zheng, Zhou, Zhi-Min, Zhu, Guangtun B., Zoccali, Manuela, and Zou, Hu
Subjects: Astrophysics - Astrophysics of Galaxies
Abstract: We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars at high resolution and high signal-to-noise ratio in the near-infrared. The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey is obtaining spatially-resolved spectroscopy for thousands of nearby galaxies (median redshift of z = 0.03). The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is mapping the galaxy, quasar, and neutral gas distributions between redshifts z = 0.6 and 3.5 to constrain cosmology using baryon acoustic oscillations, redshift space distortions, and the shape of the power spectrum. Within eBOSS, we are conducting two major subprograms: the SPectroscopic IDentification of eROSITA Sources (SPIDERS), investigating X-ray AGN and galaxies in X-ray clusters, and the Time Domain Spectroscopic Survey (TDSS), obtaining spectra of variable sources. All programs use the 2.5-meter Sloan Foundation Telescope at Apache Point Observatory; observations there began in Summer 2014. APOGEE-2 also operates a second near-infrared spectrograph at the 2.5-meter du Pont Telescope at Las Campanas Observatory, with observations beginning in early 2017. Observations at both facilities are scheduled to continue through 2020. In keeping with previous SDSS policy, SDSS-IV provides regularly scheduled public data releases; the first one, Data Release 13, was made available in July 2016., Comment: Published in Astronomical Journal
Published: 2017
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10. Measurement of BAO correlations at $z=2.3$ with SDSS DR12 \lya-Forests

Author: Bautista, Julian E., Busca, Nicolás G., Guy, Julien, Rich, James, Blomqvist, Michael, Bourboux, Hélion du Mas des, Pieri, Matthew M., Font-Ribera, Andreu, Bailey, Stephen, Delubac, Timothée, Kirkby, David, Goff, Jean-Marc Le, Margala, Daniel, Slosar, Anže, Vazquez, Jose Alberto, Brownstein, Joel R., Dawson, Kyle S., Eisenstein, Daniel J., Miralda-Escudé, Jordi, Noterdaeme, Pasquier, Palanque-Delabrouille, Nathalie, Pâris, Isabelle, Petitjean, Patrick, Ross, Nicholas P., Schneider, Donald P., Weinberg, David H., and Yèche, Christophe
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We use flux-transmission correlations in \Lya forests to measure the imprint of baryon acoustic oscillations (BAO). The study uses spectra of 157,783 quasars in the redshift range $2.1\le z \le 3.5$ from the Sloan Digital Sky Survey (SDSS) Data Release 12 (DR12). Besides the statistical improvements on our previous studies using SDSS DR9 and DR11, we have implemented numerous improvements in the analysis procedure, allowing us to construct a physical model of the correlation function and to investigate potential systematic errors in the determination of the BAO peak position. The Hubble distance, $\DHub=c/H(z)$, relative to the sound horizon is $\DHub(z=2.33)/r_d=9.07 \pm 0.31$. The best-determined combination of comoving angular-diameter distance, $\DM$, and the Hubble distance is found to be $\DHub^{0.7}\DM^{0.3}/r_d=13.94\pm0.35$. This value is $1.028\pm0.026$ times the prediction of the flat-\lcdm model consistent with the cosmic microwave background (CMB) anisotropy spectrum. The errors include marginalization over the effects of unidentified high-density absorption systems and fluctuations in ultraviolet ionizing radiation. Independently of the CMB measurements, the combination of our results and other BAO observations determine the open-\lcdm density parameters to be $\om=0.296 \pm 0.029$, $\ol=0.699 \pm 0.100$ and $\Omega_k = -0.002 \pm 0.119$., Comment: 22 pages, accepted A&A
Published: 2017
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11. Quasar – CIV forest cross-correlation with SDSS DR12

Author: Gontcho A Gontcho, Satya, Miralda-Escudé, Jordi, Font-Ribera, Andreu, Blomqvist, Michael, Busca, Nicolás G, and Rich, James
Subjects: intergalactic medium, quasars: absorption lines, astro-ph.CO, Astronomical and Space Sciences, Astronomy & Astrophysics
Abstract: We present a new determination of the large-scale clustering of the CIVforest (i.e., the absorption due to all CIV absorbers) using itscross-correlation with quasars in the Sloan Digital Sky Survey (SDSS) DataRelease 12 (DR12). We fit a linear bias model to the measuredcross-correlation. We find that the transmission bias of the CIV forest,$b_{Fc}$, at a mean redshift of $z=2.3$, obeys the relation $(1+\beta_c)b_{F c}= -0.024 \pm 0.003$. Here, $\beta_{c}$ is the linear redshift space distortionparameter of the CIV absorption, which can only be poorly determined at$\beta_c=1.1\pm 0.6$ from our data. This transmission bias is related to thebias of CIV absorbers and their host halos through the effective mean opticaldepth of the CIV forest, $\bar\tau_c$. Estimating a value $\bar \tau_c(z)\simeq 0.01$ from previous studies of the CIV equivalent width distribution,our measurement implies a CIV absorber bias near unity, with a large error dueto uncertainties in both $\beta_c$ and $\bar\tau_c$. This makes it compatiblewith the higher DLA bias $b_{\rm DLA}\simeq 2$ measured previously from thecross-correlation of DLAs and the Lyman-$\alpha$ forest. We discuss theimplications of the CIV absorber bias for the mass distribution of their hosthalos. More accurate determinations of $\bar \tau_c(z)$ and $\beta_c$ arenecessary to obtain a more robust measurement of this CIV absorber bias.
Published: 2018

12. The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the Extended Baryon Oscillation Spectroscopic Survey and from the Second Phase of the Apache Point Observatory Galactic Evolution Experiment

Author: Abolfathi, Bela, Aguado, DS, Aguilar, Gabriela, Prieto, Carlos Allende, Almeida, Andres, Ananna, Tonima Tasnim, Anders, Friedrich, Anderson, Scott F, Andrews, Brett H, Anguiano, Borja, Aragón-Salamanca, Alfonso, Argudo-Fernández, Maria, Armengaud, Eric, Ata, Metin, Aubourg, Eric, Avila-Reese, Vladimir, Badenes, Carles, Bailey, Stephen, Balland, Christophe, Barger, Kathleen A, Barrera-Ballesteros, Jorge, Bartosz, Curtis, Bastien, Fabienne, Bates, Dominic, Baumgarten, Falk, Bautista, Julian, Beaton, Rachael, Beers, Timothy C, Belfiore, Francesco, Bender, Chad F, Bernardi, Mariangela, Bershady, Matthew A, Beutler, Florian, Bird, Jonathan C, Bizyaev, Dmitry, Blanc, Guillermo A, Blanton, Michael R, Blomqvist, Michael, Bolton, Adam S, Boquien, Médéric, Borissova, Jura, Bovy, Jo, Diaz, Christian Andres Bradna, Brandt, William Nielsen, Brinkmann, Jonathan, Brownstein, Joel R, Bundy, Kevin, Burgasser, Adam J, Burtin, Etienne, Busca, Nicolás G, Cañas, Caleb I, Cano-Díaz, Mariana, Cappellari, Michele, Carrera, Ricardo, Casey, Andrew R, Sodi, Bernardo Cervantes, Chen, Yanping, Cherinka, Brian, Chiappini, Cristina, Choi, Peter Doohyun, Chojnowski, Drew, Chuang, Chia-Hsun, Chung, Haeun, Clerc, Nicolas, Cohen, Roger E, Comerford, Julia M, Comparat, Johan, do Nascimento, Janaina Correa, da Costa, Luiz, Cousinou, Marie-Claude, Covey, Kevin, Crane, Jeffrey D, Cruz-Gonzalez, Irene, Cunha, Katia, da Silva Ilha, Gabriele, Damke, Guillermo J, Darling, Jeremy, Davidson, James W, Dawson, Kyle, de Icaza Lizaola, Miguel Angel C, de la Macorra, Axel, de la Torre, Sylvain, De Lee, Nathan, de Sainte Agathe, Victoria, Machado, Alice Deconto, Dell’Agli, Flavia, Delubac, Timothée, Diamond-Stanic, Aleksandar M, Donor, John, Downes, Juan José, Drory, Niv, du Mas des Bourboux, Hélion, Duckworth, Christopher J, Dwelly, Tom, Dyer, Jamie, Ebelke, Garrett, Eigenbrot, Arthur Davis, Eisenstein, Daniel J, Elsworth, Yvonne P, and Emsellem, Eric
Subjects: Astronomical Sciences, Physical Sciences, atlases, catalogs, surveys, astro-ph.GA, astro-ph.IM, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Physical Chemistry (incl. Structural), Astronomy & Astrophysics, Astronomical sciences
Abstract: The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since 2014 July. This paper describes the second data release from this phase, and the 14th from SDSS overall (making this Data Release Fourteen or DR14). This release makes the data taken by SDSS-IV in its first two years of operation (2014-2016 July) public. Like all previous SDSS releases, DR14 is cumulative, including the most recent reductions and calibrations of all data taken by SDSS since the first phase began operations in 2000. New in DR14 is the first public release of data from the extended Baryon Oscillation Spectroscopic Survey; the first data from the second phase of the Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE-2), including stellar parameter estimates from an innovative data-driven machine-learning algorithm known as "The Cannon"; and almost twice as many data cubes from the Mapping Nearby Galaxies at APO (MaNGA) survey as were in the previous release (N = 2812 in total). This paper describes the location and format of the publicly available data from the SDSS-IV surveys. We provide references to the important technical papers describing how these data have been taken (both targeting and observation details) and processed for scientific use. The SDSS web site (www.sdss.org) has been updated for this release and provides links to data downloads, as well as tutorials and examples of data use. SDSS-IV is planning to continue to collect astronomical data until 2020 and will be followed by SDSS-V.
Published: 2018

13. The 13th Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey Mapping Nearby Galaxies at Apache Point Observatory

Author: Albareti, Franco D, Prieto, Carlos Allende, Almeida, Andres, Anders, Friedrich, Anderson, Scott, Andrews, Brett H, Aragón-Salamanca, Alfonso, Argudo-Fernández, Maria, Armengaud, Eric, Aubourg, Eric, Avila-Reese, Vladimir, Badenes, Carles, Bailey, Stephen, Barbuy, Beatriz, Barger, Kat, Barrera-Ballesteros, Jorge, Bartosz, Curtis, Basu, Sarbani, Bates, Dominic, Battaglia, Giuseppina, Baumgarten, Falk, Baur, Julien, Bautista, Julian, Beers, Timothy C, Belfiore, Francesco, Bershady, Matthew, de Lis, Sara Bertran, Bird, Jonathan C, Bizyaev, Dmitry, Blanc, Guillermo A, Blanton, Michael, Blomqvist, Michael, Bolton, Adam S, Borissova, J, Bovy, Jo, Brandt, William Nielsen, Brinkmann, Jonathan, Brownstein, Joel R, Bundy, Kevin, Burtin, Etienne, Busca, Nicolás G, Chavez, Hugo Orlando Camacho, Díaz, M Cano, Cappellari, Michele, Carrera, Ricardo, Chen, Yanping, Cherinka, Brian, Cheung, Edmond, Chiappini, Cristina, Chojnowski, Drew, Chuang, Chia-Hsun, Chung, Haeun, Cirolini, Rafael Fernando, Clerc, Nicolas, Cohen, Roger E, Comerford, Julia M, Comparat, Johan, do Nascimento, Janaina Correa, Cousinou, Marie-Claude, Covey, Kevin, Crane, Jeffrey D, Croft, Rupert, Cunha, Katia, Darling, Jeremy, Davidson, James W, Dawson, Kyle, Da Costa, Luiz, Da Silva Ilha, Gabriele, Machado, Alice Deconto, Delubac, Timothée, De Lee, Nathan, De la Macorra, Axel, De la Torre, Sylvain, Diamond-Stanic, Aleksandar M, Donor, John, Downes, Juan Jose, Drory, Niv, Du, Cheng, Du Mas des Bourboux, Hélion, Dwelly, Tom, Ebelke, Garrett, Eigenbrot, Arthur, Eisenstein, Daniel J, Elsworth, Yvonne P, Emsellem, Eric, Eracleous, Michael, Escoffier, Stephanie, Evans, Michael L, Falcón-Barroso, Jesús, Fan, Xiaohui, Favole, Ginevra, Fernandez-Alvar, Emma, Fernandez-Trincado, JG, Feuillet, Diane, Fleming, Scott W, Font-Ribera, Andreu, Freischlad, Gordon, Frinchaboy, Peter, Fu, Hai, and Gao, Yang
Subjects: Astronomical Sciences, Physical Sciences, atlases, catalogs, surveys, astro-ph.GA, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Physical Chemistry (incl. Structural), Astronomy & Astrophysics, Astronomical sciences
Abstract: The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) began observations in 2014 July. It pursues three core programs: the Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2), Mapping Nearby Galaxies at APO (MaNGA), and the Extended Baryon Oscillation Spectroscopic Survey (eBOSS). As well as its core program, eBOSS contains two major subprograms: the Time Domain Spectroscopic Survey (TDSS) and the SPectroscopic IDentification of ERosita Sources (SPIDERS). This paper describes the first data release from SDSS-IV, Data Release 13 (DR13). DR13 makes publicly available the first 1390 spatially resolved integral field unit observations of nearby galaxies from MaNGA. It includes new observations from eBOSS, completing the Sloan Extended QUasar, Emission-line galaxy, Luminous red galaxy Survey (SEQUELS), which also targeted variability-selected objects and X-ray-selected objects. DR13 includes new reductions of the SDSS-III BOSS data, improving the spectrophotometric calibration and redshift classification, and new reductions of the SDSS-III APOGEE-1 data, improving stellar parameters for dwarf stars and cooler stars. DR13 provides more robust and precise photometric calibrations. Value-added target catalogs relevant for eBOSS, TDSS, and SPIDERS and an updated red-clump catalog for APOGEE are also available. This paper describes the location and format of the data and provides references to important technical papers. The SDSS web site, http://www.sdss.org, provides links to the data, tutorials, examples of data access, and extensive documentation of the reduction and analysis procedures. DR13 is the first of a scheduled set that will contain new data and analyses from the planned ∼6 yr operations of SDSS-IV.
Published: 2017

14. Baryon acoustic oscillations from the complete SDSS-III Lyα-quasar cross-correlation function at z = 2.4

Author: du Mas des Bourboux, Hélion, Le Goff, Jean-Marc, Blomqvist, Michael, Busca, Nicolás G, Guy, Julien, Rich, James, Yèche, Christophe, Bautista, Julian E, Burtin, Étienne, Dawson, Kyle S, Eisenstein, Daniel J, Font-Ribera, Andreu, Kirkby, David, Miralda-Escudé, Jordi, Noterdaeme, Pasquier, Palanque-Delabrouille, Nathalie, Pâris, Isabelle, Petitjean, Patrick, Pérez-Ràfols, Ignasi, Pieri, Matthew M, Ross, Nicholas P, Schlegel, David J, Schneider, Donald P, Slosar, Anže, Weinberg, David H, and Zarrouk, Pauline
Subjects: Astronomical Sciences, Physical Sciences, cosmological parameters, dark energy, large-scale structure of Universe, Astronomical and Space Sciences, Astronomy & Astrophysics, Astronomical sciences, Particle and high energy physics, Space sciences
Abstract: We present a measurement of baryon acoustic oscillations (BAO) in the cross-correlation of quasars with the Lyα-forest flux transmission at a mean redshift of z = 2.40. The measurement uses the complete Sloan Digital Sky Survey (SDSS-III) data sample: 168 889 forests and 234 367 quasars from the SDSS data release DR12. In addition to the statistical improvement on our previous study using DR11, we have implemented numerous improvements at the analysis level enabling a more accurate measurement of this cross-correlation. We have also developed the first simulations of the cross-correlation that allow us to test different aspects of our data analysis and to search for potential systematic errors in the determination of the BAO peak position. We measure the two ratios DH(z = 2.40) /rd = 9.01 ± 0.36 and DM(z = 2.40) /rd = 35.7 ± 1.7, where the errors include marginalization over the non-linear velocity of quasars and the cross-correlation of metals and quasars, among other effects. These results are within 1.8σ of the prediction of the flat-ΛCDM model describing the observed cosmic microwave background anisotropies. We combine this study with the Lyα-forest auto-correlation function, yielding DH(z = 2.40) /rd = 8.94 ± 0.22 and DM(z = 2.40) /rd = 36.6 ± 1.2, within 2.3σ of the same flat-ΛCDM model.
Published: 2017

15. The DESI Experiment Part I: Science,Targeting, and Survey Design

Author: DESI Collaboration, Aghamousa, Amir, Aguilar, Jessica, Ahlen, Steve, Alam, Shadab, Allen, Lori E., Prieto, Carlos Allende, Annis, James, Bailey, Stephen, Balland, Christophe, Ballester, Otger, Baltay, Charles, Beaufore, Lucas, Bebek, Chris, Beers, Timothy C., Bell, Eric F., Bernal, José Luis, Besuner, Robert, Beutler, Florian, Blake, Chris, Bleuler, Hannes, Blomqvist, Michael, Blum, Robert, Bolton, Adam S., Briceno, Cesar, Brooks, David, Brownstein, Joel R., Buckley-Geer, Elizabeth, Burden, Angela, Burtin, Etienne, Busca, Nicolas G., Cahn, Robert N., Cai, Yan-Chuan, Cardiel-Sas, Laia, Carlberg, Raymond G., Carton, Pierre-Henri, Casas, Ricard, Castander, Francisco J., Cervantes-Cota, Jorge L., Claybaugh, Todd M., Close, Madeline, Coker, Carl T., Cole, Shaun, Comparat, Johan, Cooper, Andrew P., Cousinou, M. -C., Crocce, Martin, Cuby, Jean-Gabriel, Cunningham, Daniel P., Davis, Tamara M., Dawson, Kyle S., de la Macorra, Axel, De Vicente, Juan, Delubac, Timothée, Derwent, Mark, Dey, Arjun, Dhungana, Govinda, Ding, Zhejie, Doel, Peter, Duan, Yutong T., Ealet, Anne, Edelstein, Jerry, Eftekharzadeh, Sarah, Eisenstein, Daniel J., Elliott, Ann, Escoffier, Stéphanie, Evatt, Matthew, Fagrelius, Parker, Fan, Xiaohui, Fanning, Kevin, Farahi, Arya, Farihi, Jay, Favole, Ginevra, Feng, Yu, Fernandez, Enrique, Findlay, Joseph R., Finkbeiner, Douglas P., Fitzpatrick, Michael J., Flaugher, Brenna, Flender, Samuel, Font-Ribera, Andreu, Forero-Romero, Jaime E., Fosalba, Pablo, Frenk, Carlos S., Fumagalli, Michele, Gaensicke, Boris T., Gallo, Giuseppe, Garcia-Bellido, Juan, Gaztanaga, Enrique, Fusillo, Nicola Pietro Gentile, Gerard, Terry, Gershkovich, Irena, Giannantonio, Tommaso, Gillet, Denis, Gonzalez-de-Rivera, Guillermo, Gonzalez-Perez, Violeta, Gott, Shelby, Graur, Or, Gutierrez, Gaston, Guy, Julien, Habib, Salman, Heetderks, Henry, Heetderks, Ian, Heitmann, Katrin, Hellwing, Wojciech A., Herrera, David A., Ho, Shirley, Holland, Stephen, Honscheid, Klaus, Huff, Eric, Hutchinson, Timothy A., Huterer, Dragan, Hwang, Ho Seong, Laguna, Joseph Maria Illa, Ishikawa, Yuzo, Jacobs, Dianna, Jeffrey, Niall, Jelinsky, Patrick, Jennings, Elise, Jiang, Linhua, Jimenez, Jorge, Johnson, Jennifer, Joyce, Richard, Jullo, Eric, Juneau, Stéphanie, Kama, Sami, Karcher, Armin, Karkar, Sonia, Kehoe, Robert, Kennamer, Noble, Kent, Stephen, Kilbinger, Martin, Kim, Alex G., Kirkby, David, Kisner, Theodore, Kitanidis, Ellie, Kneib, Jean-Paul, Koposov, Sergey, Kovacs, Eve, Koyama, Kazuya, Kremin, Anthony, Kron, Richard, Kronig, Luzius, Kueter-Young, Andrea, Lacey, Cedric G., Lafever, Robin, Lahav, Ofer, Lambert, Andrew, Lampton, Michael, Landriau, Martin, Lang, Dustin, Lauer, Tod R., Goff, Jean-Marc Le, Guillou, Laurent Le, Van Suu, Auguste Le, Lee, Jae Hyeon, Lee, Su-Jeong, Leitner, Daniela, Lesser, Michael, Levi, Michael E., L'Huillier, Benjamin, Li, Baojiu, Liang, Ming, Lin, Huan, Linder, Eric, Loebman, Sarah R., Lukić, Zarija, Ma, Jun, MacCrann, Niall, Magneville, Christophe, Makarem, Laleh, Manera, Marc, Manser, Christopher J., Marshall, Robert, Martini, Paul, Massey, Richard, Matheson, Thomas, McCauley, Jeremy, McDonald, Patrick, McGreer, Ian D., Meisner, Aaron, Metcalfe, Nigel, Miller, Timothy N., Miquel, Ramon, Moustakas, John, Myers, Adam, Naik, Milind, Newman, Jeffrey A., Nichol, Robert C., Nicola, Andrina, da Costa, Luiz Nicolati, Nie, Jundan, Niz, Gustavo, Norberg, Peder, Nord, Brian, Norman, Dara, Nugent, Peter, O'Brien, Thomas, Oh, Minji, Olsen, Knut A. G., Padilla, Cristobal, Padmanabhan, Hamsa, Padmanabhan, Nikhil, Palanque-Delabrouille, Nathalie, Palmese, Antonella, Pappalardo, Daniel, Pâris, Isabelle, Park, Changbom, Patej, Anna, Peacock, John A., Peiris, Hiranya V., Peng, Xiyan, Percival, Will J., Perruchot, Sandrine, Pieri, Matthew M., Pogge, Richard, Pollack, Jennifer E., Poppett, Claire, Prada, Francisco, Prakash, Abhishek, Probst, Ronald G., Rabinowitz, David, Raichoor, Anand, Ree, Chang Hee, Refregier, Alexandre, Regal, Xavier, Reid, Beth, Reil, Kevin, Rezaie, Mehdi, Rockosi, Constance M., Roe, Natalie, Ronayette, Samuel, Roodman, Aaron, Ross, Ashley J., Ross, Nicholas P., Rossi, Graziano, Rozo, Eduardo, Ruhlmann-Kleider, Vanina, Rykoff, Eli S., Sabiu, Cristiano, Samushia, Lado, Sanchez, Eusebio, Sanchez, Javier, Schlegel, David J., Schneider, Michael, Schubnell, Michael, Secroun, Aurélia, Seljak, Uros, Seo, Hee-Jong, Serrano, Santiago, Shafieloo, Arman, Shan, Huanyuan, Sharples, Ray, Sholl, Michael J., Shourt, William V., Silber, Joseph H., Silva, David R., Sirk, Martin M., Slosar, Anze, Smith, Alex, Smoot, George F., Som, Debopam, Song, Yong-Seon, Sprayberry, David, Staten, Ryan, Stefanik, Andy, Tarle, Gregory, Tie, Suk Sien, Tinker, Jeremy L., Tojeiro, Rita, Valdes, Francisco, Valenzuela, Octavio, Valluri, Monica, Vargas-Magana, Mariana, Verde, Licia, Walker, Alistair R., Wang, Jiali, Wang, Yuting, Weaver, Benjamin A., Weaverdyck, Curtis, Wechsler, Risa H., Weinberg, David H., White, Martin, Yang, Qian, Yeche, Christophe, Zhang, Tianmeng, Zhao, Gong-Bo, Zheng, Yi, Zhou, Xu, Zhou, Zhimin, Zhu, Yaling, Zou, Hu, and Zu, Ying
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: DESI (Dark Energy Spectroscopic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations (BAO) and the growth of structure through redshift-space distortions with a wide-area galaxy and quasar redshift survey. To trace the underlying dark matter distribution, spectroscopic targets will be selected in four classes from imaging data. We will measure luminous red galaxies up to $z=1.0$. To probe the Universe out to even higher redshift, DESI will target bright [O II] emission line galaxies up to $z=1.7$. Quasars will be targeted both as direct tracers of the underlying dark matter distribution and, at higher redshifts ($ 2.1 < z < 3.5$), for the Ly-$\alpha$ forest absorption features in their spectra, which will be used to trace the distribution of neutral hydrogen. When moonlight prevents efficient observations of the faint targets of the baseline survey, DESI will conduct a magnitude-limited Bright Galaxy Survey comprising approximately 10 million galaxies with a median $z\approx 0.2$. In total, more than 30 million galaxy and quasar redshifts will be obtained to measure the BAO feature and determine the matter power spectrum, including redshift space distortions.
Published: 2016

16. The DESI Experiment Part II: Instrument Design

Author: DESI Collaboration, Aghamousa, Amir, Aguilar, Jessica, Ahlen, Steve, Alam, Shadab, Allen, Lori E., Prieto, Carlos Allende, Annis, James, Bailey, Stephen, Balland, Christophe, Ballester, Otger, Baltay, Charles, Beaufore, Lucas, Bebek, Chris, Beers, Timothy C., Bell, Eric F., Bernal, José Luis, Besuner, Robert, Beutler, Florian, Blake, Chris, Bleuler, Hannes, Blomqvist, Michael, Blum, Robert, Bolton, Adam S., Briceno, Cesar, Brooks, David, Brownstein, Joel R., Buckley-Geer, Elizabeth, Burden, Angela, Burtin, Etienne, Busca, Nicolas G., Cahn, Robert N., Cai, Yan-Chuan, Cardiel-Sas, Laia, Carlberg, Raymond G., Carton, Pierre-Henri, Casas, Ricard, Castander, Francisco J., Cervantes-Cota, Jorge L., Claybaugh, Todd M., Close, Madeline, Coker, Carl T., Cole, Shaun, Comparat, Johan, Cooper, Andrew P., Cousinou, M. -C., Crocce, Martin, Cuby, Jean-Gabriel, Cunningham, Daniel P., Davis, Tamara M., Dawson, Kyle S., de la Macorra, Axel, De Vicente, Juan, Delubac, Timothée, Derwent, Mark, Dey, Arjun, Dhungana, Govinda, Ding, Zhejie, Doel, Peter, Duan, Yutong T., Ealet, Anne, Edelstein, Jerry, Eftekharzadeh, Sarah, Eisenstein, Daniel J., Elliott, Ann, Escoffier, Stéphanie, Evatt, Matthew, Fagrelius, Parker, Fan, Xiaohui, Fanning, Kevin, Farahi, Arya, Farihi, Jay, Favole, Ginevra, Feng, Yu, Fernandez, Enrique, Findlay, Joseph R., Finkbeiner, Douglas P., Fitzpatrick, Michael J., Flaugher, Brenna, Flender, Samuel, Font-Ribera, Andreu, Forero-Romero, Jaime E., Fosalba, Pablo, Frenk, Carlos S., Fumagalli, Michele, Gaensicke, Boris T., Gallo, Giuseppe, Garcia-Bellido, Juan, Gaztanaga, Enrique, Fusillo, Nicola Pietro Gentile, Gerard, Terry, Gershkovich, Irena, Giannantonio, Tommaso, Gillet, Denis, Gonzalez-de-Rivera, Guillermo, Gonzalez-Perez, Violeta, Gott, Shelby, Graur, Or, Gutierrez, Gaston, Guy, Julien, Habib, Salman, Heetderks, Henry, Heetderks, Ian, Heitmann, Katrin, Hellwing, Wojciech A., Herrera, David A., Ho, Shirley, Holland, Stephen, Honscheid, Klaus, Huff, Eric, Hutchinson, Timothy A., Huterer, Dragan, Hwang, Ho Seong, Laguna, Joseph Maria Illa, Ishikawa, Yuzo, Jacobs, Dianna, Jeffrey, Niall, Jelinsky, Patrick, Jennings, Elise, Jiang, Linhua, Jimenez, Jorge, Johnson, Jennifer, Joyce, Richard, Jullo, Eric, Juneau, Stéphanie, Kama, Sami, Karcher, Armin, Karkar, Sonia, Kehoe, Robert, Kennamer, Noble, Kent, Stephen, Kilbinger, Martin, Kim, Alex G., Kirkby, David, Kisner, Theodore, Kitanidis, Ellie, Kneib, Jean-Paul, Koposov, Sergey, Kovacs, Eve, Koyama, Kazuya, Kremin, Anthony, Kron, Richard, Kronig, Luzius, Kueter-Young, Andrea, Lacey, Cedric G., Lafever, Robin, Lahav, Ofer, Lambert, Andrew, Lampton, Michael, Landriau, Martin, Lang, Dustin, Lauer, Tod R., Goff, Jean-Marc Le, Guillou, Laurent Le, Van Suu, Auguste Le, Lee, Jae Hyeon, Lee, Su-Jeong, Leitner, Daniela, Lesser, Michael, Levi, Michael E., L'Huillier, Benjamin, Li, Baojiu, Liang, Ming, Lin, Huan, Linder, Eric, Loebman, Sarah R., Lukić, Zarija, Ma, Jun, MacCrann, Niall, Magneville, Christophe, Makarem, Laleh, Manera, Marc, Manser, Christopher J., Marshall, Robert, Martini, Paul, Massey, Richard, Matheson, Thomas, McCauley, Jeremy, McDonald, Patrick, McGreer, Ian D., Meisner, Aaron, Metcalfe, Nigel, Miller, Timothy N., Miquel, Ramon, Moustakas, John, Myers, Adam, Naik, Milind, Newman, Jeffrey A., Nichol, Robert C., Nicola, Andrina, da Costa, Luiz Nicolati, Nie, Jundan, Niz, Gustavo, Norberg, Peder, Nord, Brian, Norman, Dara, Nugent, Peter, O'Brien, Thomas, Oh, Minji, Olsen, Knut A. G., Padilla, Cristobal, Padmanabhan, Hamsa, Padmanabhan, Nikhil, Palanque-Delabrouille, Nathalie, Palmese, Antonella, Pappalardo, Daniel, Pâris, Isabelle, Park, Changbom, Patej, Anna, Peacock, John A., Peiris, Hiranya V., Peng, Xiyan, Percival, Will J., Perruchot, Sandrine, Pieri, Matthew M., Pogge, Richard, Pollack, Jennifer E., Poppett, Claire, Prada, Francisco, Prakash, Abhishek, Probst, Ronald G., Rabinowitz, David, Raichoor, Anand, Ree, Chang Hee, Refregier, Alexandre, Regal, Xavier, Reid, Beth, Reil, Kevin, Rezaie, Mehdi, Rockosi, Constance M., Roe, Natalie, Ronayette, Samuel, Roodman, Aaron, Ross, Ashley J., Ross, Nicholas P., Rossi, Graziano, Rozo, Eduardo, Ruhlmann-Kleider, Vanina, Rykoff, Eli S., Sabiu, Cristiano, Samushia, Lado, Sanchez, Eusebio, Sanchez, Javier, Schlegel, David J., Schneider, Michael, Schubnell, Michael, Secroun, Aurélia, Seljak, Uros, Seo, Hee-Jong, Serrano, Santiago, Shafieloo, Arman, Shan, Huanyuan, Sharples, Ray, Sholl, Michael J., Shourt, William V., Silber, Joseph H., Silva, David R., Sirk, Martin M., Slosar, Anze, Smith, Alex, Smoot, George F., Som, Debopam, Song, Yong-Seon, Sprayberry, David, Staten, Ryan, Stefanik, Andy, Tarle, Gregory, Tie, Suk Sien, Tinker, Jeremy L., Tojeiro, Rita, Valdes, Francisco, Valenzuela, Octavio, Valluri, Monica, Vargas-Magana, Mariana, Verde, Licia, Walker, Alistair R., Wang, Jiali, Wang, Yuting, Weaver, Benjamin A., Weaverdyck, Curtis, Wechsler, Risa H., Weinberg, David H., White, Martin, Yang, Qian, Yeche, Christophe, Zhang, Tianmeng, Zhao, Gong-Bo, Zheng, Yi, Zhou, Xu, Zhou, Zhimin, Zhu, Yaling, Zou, Hu, and Zu, Ying
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: DESI (Dark Energy Spectropic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations and the growth of structure through redshift-space distortions with a wide-area galaxy and quasar redshift survey. The DESI instrument is a robotically-actuated, fiber-fed spectrograph capable of taking up to 5,000 simultaneous spectra over a wavelength range from 360 nm to 980 nm. The fibers feed ten three-arm spectrographs with resolution $R= \lambda/\Delta\lambda$ between 2000 and 5500, depending on wavelength. The DESI instrument will be used to conduct a five-year survey designed to cover 14,000 deg$^2$. This powerful instrument will be installed at prime focus on the 4-m Mayall telescope in Kitt Peak, Arizona, along with a new optical corrector, which will provide a three-degree diameter field of view. The DESI collaboration will also deliver a spectroscopic pipeline and data management system to reduce and archive all data for eventual public use.
Published: 2016

17. The Thirteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey MApping Nearby Galaxies at Apache Point Observatory

Author: SDSS Collaboration, Albareti, Franco D., Prieto, Carlos Allende, Almeida, Andres, Anders, Friedrich, Anderson, Scott, Andrews, Brett H., Aragon-Salamanca, Alfonso, Argudo-Fernandez, Maria, Armengaud, Eric, Aubourg, Eric, Avila-Reese, Vladimir, Badenes, Carles, Bailey, Stephen, Barbuy, Beatriz, Barger, Kat, Barrera-Ballesteros, Jorge, Bartosz, Curtis, Basu, Sarbani, Bates, Dominic, Battaglia, Giuseppina, Baumgarten, Falk, Baur, Julien, Bautista, Julian, Beers, Timothy C., Belfiore, Francesco, Bershady, Matthew, de Lis, Sara Bertran, Bird, Jonathan C., Bizyaev, Dmitry, Blanc, Guillermo A., Blanton, Michael, Blomqvist, Michael, Bolton, Adam S., Borissova, J., Bovy, Jo, Brandt, William Nielsen, Brinkmann, Jonathan, Brownstein, Joel R., Bundy, Kevin, Burtin, Etienne, Busca, Nicolas G., Chavez, Hugo Orlando Camacho, Diaz, M. Cano, Cappellari, Michele, Carrera, Ricardo, Chen, Yanping, Cherinka, Brian, Cheung, Edmond, Chiappini, Cristina, Chojnowski, Drew, Chuang, Chia-Hsun, Chung, Haeun, Cirolini, Rafael Fernando, Clerc, Nicolas, Cohen, Roger E., Comerford, Julia M., Comparat, Johan, Cousinou, Marie-Claude, Covey, Kevin, Crane, Jeffrey D., Croft, Rupert, Cunha, Katia, da Costa, Luiz, Ilha, Gabriele da Silva, Darling, Jeremy, Davidson Jr., James W., Dawson, Kyle, De Lee, Nathan, de la Macorra, Axel, de la Torre, Sylvain, Machado, Alice Deconto, Delubac, Timothee, Diamond-Stanic, Aleksandar M., Donor, John, Downes, Juan Jose, Drory, Niv, Bourboux, Helion du Mas des, Du, Cheng, Dwelly, Tom, Ebelke, Garrett, Eigenbrot, Arthur, Eisenstein, Daniel J., Elsworth, Yvonne P., Emsellem, Eric, Eracleous, Michael, Escoffier, Stephanie, Evans, Michael L., Falcon-Barroso, Jesus, Fan, Xiaohui, Favole, Ginevra, Fernandez-Alvar, Emma, Fernandez-Trincado, J. G., Feuillet, Diane, Fleming, Scott W., Font-Ribera, Andreu, Freischlad, Gordon, Frinchaboy, Peter, Fu, Hai, Gao, Yang, Garcia-Hernandez, D. A., Perez, Ana E. Garcia, Garcia, Rafael A., Garcia-Dias, R., Gaulme, Patrick, Ge, Junqiang, Geisler, Douglas, Marin, Hector Gil, Gillespie, Bruce, Girardi, Leo, Goddard, Daniel, Chew, Yilen Gomez Maqueo, Gonzalez-Perez, Violeta, Grabowski, Kathleen, Green, Paul, Grier, Catherine J., Grier, Thomas, Guo, Hong, Guy, Julien, Hagen, Alex, Hall, Matt, Harding, Paul, Harley, R. E., Hasselquist, Sten, Hawley, Suzanne, Hayes, Christian R., Hearty, Fred, Hekker, Saskia, Toledo, Hector Hernandez, Ho, Shirley, Hogg, David W., Holley-Bockelmann, Kelly, Holtzman, Jon A., Holzer, Parker H., Hu, Jian, Huber, Daniel, Hutchinson, Timothy Alan, Hwang, Ho Seong, Ibarra-Medel, Hector J., Ivans, Inese I., Ivory, KeShawn, Jaehnig, Kurt, Jensen, Trey W., Johnson, Jennifer A., Jones, Amy, Jullo, Eric, Kallinger, T., Kinemuchi, Karen, Kirkby, David, Klaene, Mark, Kneib, Jean-Paul, Kollmeier, Juna A., Lacerna, Ivan, Lane, Richard R., Lang, Dustin, Laurent, Pierre, Law, David R., Goff, Jean-Marc Le, Leauthaud, Alexie, Li, Cheng, Li, Ran, Li, Chen, Li, Niu, Liang, Fu-Heng, Liang, Yu, Lima, Marcos, Lin, Lihwai, Lin, Lin, Lin, Yen-Ting, Long, Dan, Lucatello, Sara, MacDonald, Nicholas, MacLeod, Chelsea L., Mackereth, J. Ted, Mahadevan, Suvrath, Maia, Marcio Antonio-Geimba, Maiolino, Roberto, Majewski, Steven R., Malanushenko, Olena, Mallmann, Nicolas Dullius, Manchado, Arturo, Maraston, Claudia, Marques-Chaves, Rui, Valpuesta, Inma Martinez, Masters, Karen L., Mathur, Savita, McGreer, Ian D., Merloni, Andrea, Merrifield, Michael R., Meszaros, Szabolcs, Meza, Andres, Miglio, Andrea, Minchev, Ivan, Molaverdikhani, Karan, Montero-Dorta, Antonio D., Mosser, Benoit, Muna, Demitri, Myers, Adam, Nair, Preethi, Nandra, Kirpal, Ness, Melissa, Newman, Jeffrey A., Nichol, Robert C., Nidever, David L., Nitschelm, Christian, O'Connell, Julia, Oravetz, Audrey, Padilla, Nelson, Palanque-Delabrouille, Nathalie, Pan, Kaike, Parejko, John, Paris, Isabelle, Peacock, John A., Peirani, Sebastien, Pellejero-Ibanez, Marcos, Penny, Samantha, Percival, Will J., Percival, Jeffrey W., Perez-Fournon, Ismael, Petitjean, Patrick, Pieri, Matthew, Pinsonneault, Marc H., Pisani, Alice, Prada, Francisco, Prakash, Abhishek, Price-Jones, Natalie, Raddick, M. Jordan, Rahman, Mubdi, Raichoor, Anand, Rembold, Sandro Barboza, Reyna, A. M., Rich, James, Richstein, Hannah, Ridl, Jethro, Riffel, Rogerio, Riffel, Rogemar A., Rix, Hans-Walter, Robin, Annie C., Rockosi, Constance M., Rodriguez-Torres, Sergio, Rodrigues, Thaise S., Roe, Natalie, Lopes, A. Roman, Roman-Zuniga, Carlos, Ross, Ashley J., Rossi, Graziano, Ruan, John, Ruggeri, Rossana, Runnoe, Jessie C., Salazar-Albornoz, Salvador, Salvato, Mara, Sanchez, Ariel G., Sanchez, Sebastian F., Sanchez-Gallego, Jose R., Santiago, Basilio Xavier, Schiavon, Ricardo, Schimoia, Jaderson S., Schlafly, Eddie, Schlegel, David J., Schneider, Donald P., Schoenrich, Ralph, Schultheis, Mathias, Schwope, Axel, Seo, Hee-Jong, Serenelli, Aldo, Sesar, Branimir, Shao, Zhengyi, Shetrone, Matthew, Shull, Michael, Aguirre, Victor Silva, Skrutskie, M. F., Slosar, Anže, Smith, Michael, Smith, Verne V., Sobeck, Jennifer, Somers, Garrett, Souto, Diogo, Stark, David V., Stassun, Keivan G., Steinmetz, Matthias, Stello, Dennis, Bergmann, Thaisa Storchi, Strauss, Michael A., Streblyanska, Alina, Stringfellow, Guy S., Suarez, Genaro, Sun, Jing, Taghizadeh-Popp, Manuchehr, Tang, Baitian, Tao, Charling, Tayar, Jamie, Tembe, Mita, Thomas, Daniel, Tinker, Jeremy, Tojeiro, Rita, Tremonti, Christy, Troup, Nicholas, Trump, Jonathan R., Unda-Sanzana, Eduardo, Valenzuela, O., Bosch, Remco van den, Vargas-Magana, Mariana, Vazquez, Jose Alberto, Villanova, Sandro, Vivek, M., Vogt, Nicole, Wake, David, Walterbos, Rene, Wang, Yuting, Wang, Enci, Weaver, Benjamin Alan, Weijmans, Anne-Marie, Weinberg, David H., Westfall, Kyle B., Whelan, David G., Wilcots, Eric, Wild, Vivienne, Williams, Rob A., Wilson, John, Wood-Vasey, W. M., Wylezalek, Dominika, Xiao, Ting, Yan, Renbin, Yang, Meng, Ybarra, Jason E., Yeche, Christophe, Yuan, Fang-Ting, Zakamska, Nadia, Zamora, Olga, Zasowski, Gail, Zhang, Kai, Zhao, Cheng, Zhao, Gong-Bo, Zheng, Zheng, Zhou, Zhi-Min, Zhu, Guangtun, Zinn, Joel C., and Zou, Hu
Subjects: Astrophysics - Astrophysics of Galaxies
Abstract: The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) began observations in July 2014. It pursues three core programs: APOGEE-2, MaNGA, and eBOSS. In addition, eBOSS contains two major subprograms: TDSS and SPIDERS. This paper describes the first data release from SDSS-IV, Data Release 13 (DR13), which contains new data, reanalysis of existing data sets and, like all SDSS data releases, is inclusive of previously released data. DR13 makes publicly available 1390 spatially resolved integral field unit observations of nearby galaxies from MaNGA, the first data released from this survey. It includes new observations from eBOSS, completing SEQUELS. In addition to targeting galaxies and quasars, SEQUELS also targeted variability-selected objects from TDSS and X-ray selected objects from SPIDERS. DR13 includes new reductions of the SDSS-III BOSS data, improving the spectrophotometric calibration and redshift classification. DR13 releases new reductions of the APOGEE-1 data from SDSS-III, with abundances of elements not previously included and improved stellar parameters for dwarf stars and cooler stars. For the SDSS imaging data, DR13 provides new, more robust and precise photometric calibrations. Several value-added catalogs are being released in tandem with DR13, in particular target catalogs relevant for eBOSS, TDSS, and SPIDERS, and an updated red-clump catalog for APOGEE. This paper describes the location and format of the data now publicly available, as well as providing references to the important technical papers that describe the targeting, observing, and data reduction. The SDSS website, http://www.sdss.org, provides links to the data, tutorials and examples of data access, and extensive documentation of the reduction and analysis procedures. DR13 is the first of a scheduled set that will contain new data and analyses from the planned ~6-year operations of SDSS-IV., Comment: Full information on DR13 available at http://www.sdss.org. Comments welcome to spokesperson@sdss.org. To be published in ApJS
Published: 2016
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18. Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe

Author: Blanton, Michael R, Bershady, Matthew A, Abolfathi, Bela, Albareti, Franco D, Prieto, Carlos Allende, Almeida, Andres, Alonso-García, Javier, Anders, Friedrich, Anderson, Scott F, Andrews, Brett, Aquino-Ortíz, Erik, Aragón-Salamanca, Alfonso, Argudo-Fernández, Maria, Armengaud, Eric, Aubourg, Eric, Avila-Reese, Vladimir, Badenes, Carles, Bailey, Stephen, Barger, Kathleen A, Barrera-Ballesteros, Jorge, Bartosz, Curtis, Bates, Dominic, Baumgarten, Falk, Bautista, Julian, Beaton, Rachael, Beers, Timothy C, Belfiore, Francesco, Bender, Chad F, Berlind, Andreas A, Bernardi, Mariangela, Beutler, Florian, Bird, Jonathan C, Bizyaev, Dmitry, Blanc, Guillermo A, Blomqvist, Michael, Bolton, Adam S, Boquien, Médéric, Borissova, Jura, van den Bosch, Remco, Bovy, Jo, Brandt, William N, Brinkmann, Jonathan, Brownstein, Joel R, Bundy, Kevin, Burgasser, Adam J, Burtin, Etienne, Busca, Nicolás G, Cappellari, Michele, Carigi, Maria Leticia Delgado, Carlberg, Joleen K, Rosell, Aurelio Carnero, Carrera, Ricardo, Chanover, Nancy J, Cherinka, Brian, Cheung, Edmond, Chew, Yilen Gómez Maqueo, Chiappini, Cristina, Choi, Peter Doohyun, Chojnowski, Drew, Chuang, Chia-Hsun, Chung, Haeun, Cirolini, Rafael Fernando, Clerc, Nicolas, Cohen, Roger E, Comparat, Johan, da Costa, Luiz, Cousinou, Marie-Claude, Covey, Kevin, Crane, Jeffrey D, Croft, Rupert AC, Cruz-Gonzalez, Irene, Cuadra, Daniel Garrido, Cunha, Katia, Damke, Guillermo J, Darling, Jeremy, Davies, Roger, Dawson, Kyle, de la Macorra, Axel, Dell’Agli, Flavia, De Lee, Nathan, Delubac, Timothée, Di Mille, Francesco, Diamond-Stanic, Aleks, Cano-Díaz, Mariana, Donor, John, Downes, Juan José, Drory, Niv, du Mas des Bourboux, Hélion, Duckworth, Christopher J, Dwelly, Tom, Dyer, Jamie, Ebelke, Garrett, Eigenbrot, Arthur D, Eisenstein, Daniel J, Emsellem, Eric, Eracleous, Mike, Escoffier, Stephanie, Evans, Michael L, Fan, Xiaohui, and Fernández-Alvar, Emma
Subjects: Space Sciences, Astronomical Sciences, Physical Sciences, cosmology: observations, galaxies: general, Galaxy: general, instrumentation: spectrographs, stars: general, surveys, astro-ph.GA, Astronomical and Space Sciences, Astronomy & Astrophysics, Astronomical sciences, Particle and high energy physics
Abstract: We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars at high resolution and high signal-to-noise ratios in the near-infrared. The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey is obtaining spatially resolved spectroscopy for thousands of nearby galaxies (median z ∼ 0.03). The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is mapping the galaxy, quasar, and neutral gas distributions between z ~ 0.6 and 3.5 to constrain cosmology using baryon acoustic oscillations, redshift space distortions, and the shape of the power spectrum. Within eBOSS, we are conducting two major subprograms: the SPectroscopic IDentification of eROSITA Sources (SPIDERS), investigating X-ray AGNs and galaxies in X-ray clusters, and the Time Domain Spectroscopic Survey (TDSS), obtaining spectra of variable sources. All programs use the 2.5 m Sloan Foundation Telescope at the Apache Point Observatory; observations there began in Summer 2014. APOGEE-2 also operates a second near-infrared spectrograph at the 2.5 m du Pont Telescope at Las Campanas Observatory, with observations beginning in early 2017. Observations at both facilities are scheduled to continue through 2020. In keeping with previous SDSS policy, SDSS-IV provides regularly scheduled public data releases; the first one, Data Release 13, was made available in 2016 July.
Published: 2017

19. Measurement of baryon acoustic oscillation correlations at z = 2.3 with SDSS DR12 Lyα-Forests

Author: Bautista, Julian E, Busca, Nicolás G, Guy, Julien, Rich, James, Blomqvist, Michael, du Mas des Bourboux, Hélion, Pieri, Matthew M, Font-Ribera, Andreu, Bailey, Stephen, Delubac, Timothée, Kirkby, David, Le Goff, Jean-Marc, Margala, Daniel, Slosar, Anže, Vazquez, Jose Alberto, Brownstein, Joel R, Dawson, Kyle S, Eisenstein, Daniel J, Miralda-Escudé, Jordi, Noterdaeme, Pasquier, Palanque-Delabrouille, Nathalie, Pâris, Isabelle, Petitjean, Patrick, Ross, Nicholas P, Schneider, Donald P, Weinberg, David H, and Yèche, Christophe
Subjects: cosmological parameters, dark energy, Astronomical and Space Sciences, Astronomy & Astrophysics
Abstract: We have used flux-transmission correlations in Lyα forests to measure the imprint of baryon acoustic oscillations (BAO). The study uses spectra of 157 783 quasars in the redshift range 2:1 ≤ z ≤ 3:5 from the Sloan Digital Sky Survey (SDSS) data release 12 (DR12). Besides the statistical improvements on our previous studies using SDSS DR9 and DR11, we have implemented numerous improvements in the analysis procedure, allowing us to construct a physical model of the correlation function and to investigate potential systematic errors in the determination of the BAO peak position. The Hubble distance, DH = c=H(z), relative to the sound horizon is DH(z = 2:33)=rd = 9:07 ± 0:31. The best-determined combination of comoving angular-diameter distance, DM, and the Hubble distance is found to be D0:7 H D0:3 M =rd = 13:94±0:35. This value is 1:028±0:026 times the prediction of the flat-ΛCDM model consistent with the cosmic microwave background (CMB) anisotropy spectrum. The errors include marginalization over the effects of unidentified high-density absorption systems and fluctuations in ultraviolet ionizing radiation. Independently of the CMB measurements, the combination of our results and other BAO observations determine the open-ΛCDM density parameters to be ΩM = 0:296 ± 0:029, ΩΛ = 0:699 ± 0:100 and Ωk = -0:002 ± 0:119.
Published: 2017

20. Broadband distortion modeling in Lyman-$\alpha$ forest BAO fitting

Author: Blomqvist, Michael, Kirkby, David, Bautista, Julian E., Arinyo-i-Prats, Andreu, Busca, Nicolás G., Miralda-Escudé, Jordi, Slosar, Anže, Font-Ribera, Andreu, Margala, Daniel, Schneider, Donald P., and Vazquez, Jose A.
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: In recent years, the Lyman-$\alpha$ absorption observed in the spectra of high-redshift quasars has been used as a tracer of large-scale structure by means of the three-dimensional Lyman-$\alpha$ forest auto-correlation function at redshift $z\simeq 2.3$, but the need to fit the quasar continuum in every absorption spectrum introduces a broadband distortion that is difficult to correct and causes a systematic error for measuring any broadband properties. We describe a $k$-space model for this broadband distortion based on a multiplicative correction to the power spectrum of the transmitted flux fraction that suppresses power on scales corresponding to the typical length of a Lyman-$\alpha$ forest spectrum. Implementing the distortion model in fits for the baryon acoustic oscillation (BAO) peak position in the Lyman-$\alpha$ forest auto-correlation, we find that the fitting method recovers the input values of the linear bias parameter $b_{F}$ and the redshift-space distortion parameter $\beta_{F}$ for mock data sets with a systematic error of less than 0.5\%. Applied to the auto-correlation measured for BOSS Data Release 11, our method improves on the previous treatment of broadband distortions in BAO fitting by providing a better fit to the data using fewer parameters and reducing the statistical errors on $\beta_{F}$ and the combination $b_{F}(1+\beta_{F})$ by more than a factor of seven. The measured values at redshift $z=2.3$ are $\beta_{F}=1.39^{+0.11\ +0.24\ +0.38}_{-0.10\ -0.19\ -0.28}$ and $b_{F}(1+\beta_{F})=-0.374^{+0.007\ +0.013\ +0.020}_{-0.007\ -0.014\ -0.022}$ (1$\sigma$, 2$\sigma$ and 3$\sigma$ statistical errors). Our fitting software and the input files needed to reproduce our main results are publicly available., Comment: 28 pages, 15 figures, matches the published version
Published: 2015
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21. The Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III

Author: Alam, Shadab, Albareti, Franco D., Prieto, Carlos Allende, Anders, F., Anderson, Scott F., Andrews, Brett H., Armengaud, Eric, Aubourg, Éric, Bailey, Stephen, Bautista, Julian E., Beaton, Rachael L., Beers, Timothy C., Bender, Chad F., Berlind, Andreas A., Beutler, Florian, Bhardwaj, Vaishali, Bird, Jonathan C., Bizyaev, Dmitry, Blake, Cullen H., Blanton, Michael R., Blomqvist, Michael, Bochanski, John J., Bolton, Adam S., Bovy, Jo, Bradley, A. Shelden, Brandt, W. N., Brauer, D. E., Brinkmann, J., Brown, Peter J., Brownstein, Joel R., Burden, Angela, Burtin, Etienne, Busca, Nicolás G., Cai, Zheng, Capozzi, Diego, Rosell, Aurelio Carnero, Carrera, Ricardo, Chen, Yen-Chi, Chiappini, Cristina, Chojnowski, S. Drew, Chuang, Chia-Hsun, Clerc, Nicolas, Comparat, Johan, Covey, Kevin, Croft, Rupert A. C., Cuesta, Antonio J., Cunha, Katia, da Costa, Luiz N., Da Rio, Nicola, Davenport, James R. A., Dawson, Kyle S., De Lee, Nathan, Delubac, Timothée, Deshpande, Rohit, Dutra-Ferreira, Letícia, Dwelly, Tom, Ealet, Anne, Ebelke, Garrett L., Edmondson, Edward M., Eisenstein, Daniel J., Escoffier, Stephanie, Esposito, Massimiliano, Fan, Xiaohui, Fernández-Alvar, Emma, Feuillet, Diane, Ak, Nurten Filiz, Finley, Hayley, Finoguenov, Alexis, Flaherty, Kevin, Fleming, Scott W., Font-Ribera, Andreu, Foster, Jonathan, Frinchaboy, Peter M., Galbraith-Frew, J. G., García-Hernández, D. A., Pérez, Ana E. García, Gaulme, Patrick, Ge, Jian, Génova-Santos, R., Ghezzi, Luan, Gillespie, Bruce A., Girardi, Léo, Goddard, Daniel, Gontcho, Satya Gontcho A, Hernández, Jonay I. González, Grebel, Eva K., Grieb, Jan Niklas, Grieves, Nolan, Gunn, James E., Guo, Hong, Harding, Paul, Hasselquist, Sten, Hawley, Suzanne L., Hayden, Michael, Hearty, Fred R., Ho, Shirley, Hogg, David W., Holley-Bockelmann, Kelly, Holtzman, Jon A., Honscheid, Klaus, Huehnerhoff, Joseph, Jiang, Linhua, Johnson, Jennifer A., Kinemuchi, Karen, Kirkby, David, Kitaura, Francisco, Klaene, Mark A., Kneib, Jean-Paul, Koenig, Xavier P., Lam, Charles R., Lan, Ting-Wen, Lang, Dustin, Laurent, Pierre, Goff, Jean-Marc Le, Leauthaud, Alexie, Lee, Khee-Gan, Lee, Young Sun, Licquia, Timothy C., Liu, Jian, Long, Daniel C., López-Corredoira, Martín, Lorenzo-Oliveira, Diego, Lucatello, Sara, Lundgren, Britt, Lupton, Robert H., Mack III, Claude E., Mahadevan, Suvrath, Maia, Marcio A. G., Majewski, Steven R., Malanushenko, Elena, Malanushenko, Viktor, Manchado, A., Manera, Marc, Mao, Qingqing, Maraston, Claudia, Marchwinski, Robert C., Margala, Daniel, Martell, Sarah L., Martig, Marie, Masters, Karen L., McBride, Cameron K., McGehee, Peregrine M., McGreer, Ian D., McMahon, Richard G., Ménard, Brice, Menzel, Marie-Luise, Merloni, Andrea, Mészáros, Szabolcs, Miller, Adam A., Miralda-Escudé, Jordi, Miyatake, Hironao, Montero-Dorta, Antonio D., More, Surhud, Morice-Atkinson, Xan, Morrison, Heather L., Muna, Demitri, Myers, Adam D., Newman, Jeffrey A., Neyrinck, Mark, Nguyen, Duy Cuong, Nichol, Robert C., Nidever, David L., Noterdaeme, Pasquier, Nuza, Sebastián E., O'Connell, Julia E., O'Connell, Robert W., O'Connell, Ross, Ogando, Ricardo L. C., Olmstead, Matthew D., Oravetz, Audrey E., Oravetz, Daniel J., Osumi, Keisuke, Owen, Russell, Padgett, Deborah L., Padmanabhan, Nikhil, Paegert, Martin, Palanque-Delabrouille, Nathalie, Pan, Kaike, Parejko, John K., Park, Changbom, Pâris, Isabelle, Pattarakijwanich, Petchara, Pellejero-Ibanez, M., Pepper, Joshua, Percival, Will J., Pérez-Fournon, Ismael, Pérez-Ràfols, Ignasi, Petitjean, Patrick, Pieri, Matthew M., Pinsonneault, Marc H., de Mello, Gustavo F. Porto, Prada, Francisco, Prakash, Abhishek, Price-Whelan, Adrian M., Raddick, M. Jordan, Rahman, Mubdi, Reid, Beth A., Rich, James, Rix, Hans-Walter, Robin, Annie C., Rockosi, Constance M., Rodrigues, Thaíse S., Rodríguez-Rottes, Sergio, Roe, Natalie A., Ross, Ashley J., Ross, Nicholas P., Rossi, Graziano, Ruan, John J., Rubiño-Martín, J. A., Rykoff, Eli S., Salazar-Albornoz, Salvador, Salvato, Mara, Samushia, Lado, Sánchez, Ariel G., Santiago, Basílio, Sayres, Conor, Schiavon, Ricardo P., Schlegel, David J., Schmidt, Sarah J., Schneider, Donald P., Schultheis, Mathias, Schwope, Axel D., Scóccola, C. G., Sellgren, Kris, Seo, Hee-Jong, Shane, Neville, Shen, Yue, Shetrone, Matthew, Shu, Yiping, Sivarani, Thirupathi, Skrutskie, M. F., Slosar, Anže, Smith, Verne V., Sobreira, Flávia, Stassun, Keivan G., Steinmetz, Matthias, Strauss, Michael A., Streblyanska, Alina, Swanson, Molly E. C., Tan, Jonathan C., Tayar, Jamie, Terrien, Ryan C., Thakar, Aniruddha R., Thomas, Daniel, Thompson, Benjamin A., Tinker, Jeremy L., Tojeiro, Rita, Troup, Nicholas W., Vargas-Magaña, Mariana, Vazquez, Jose A., Verde, Licia, Viel, Matteo, Vogt, Nicole P., Wake, David A., Wang, Ji, Weaver, Benjamin A., Weinberg, David H., Weiner, Benjamin J., White, Martin, Wilson, John C., Wisniewski, John P., Wood-Vasey, W. M., Yèche, Christophe, York, Donald G., Zakamska, Nadia L., Zamora, O., Zasowski, Gail, Zehavi, Idit, Zhao, Gong-Bo, Zheng, Zheng, Zhou, Xu, Zhou, Zhimin, Zhu, Guangtun, and Zou, Hu
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Astrophysics of Galaxies, Astrophysics - Solar and Stellar Astrophysics
Abstract: The third generation of the Sloan Digital Sky Survey (SDSS-III) took data from 2008 to 2014 using the original SDSS wide-field imager, the original and an upgraded multi-object fiber-fed optical spectrograph, a new near-infrared high-resolution spectrograph, and a novel optical interferometer. All the data from SDSS-III are now made public. In particular, this paper describes Data Release 11 (DR11) including all data acquired through 2013 July, and Data Release 12 (DR12) adding data acquired through 2014 July (including all data included in previous data releases), marking the end of SDSS-III observing. Relative to our previous public release (DR10), DR12 adds one million new spectra of galaxies and quasars from the Baryon Oscillation Spectroscopic Survey (BOSS) over an additional 3000 sq. deg of sky, more than triples the number of H-band spectra of stars as part of the Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE), and includes repeated accurate radial velocity measurements of 5500 stars from the Multi-Object APO Radial Velocity Exoplanet Large-area Survey (MARVELS). The APOGEE outputs now include measured abundances of 15 different elements for each star. In total, SDSS-III added 2350 sq. deg of ugriz imaging; 155,520 spectra of 138,099 stars as part of the Sloan Exploration of Galactic Understanding and Evolution 2 (SEGUE-2) survey; 2,497,484 BOSS spectra of 1,372,737 galaxies, 294,512 quasars, and 247,216 stars over 9376 sq. deg; 618,080 APOGEE spectra of 156,593 stars; and 197,040 MARVELS spectra of 5,513 stars. Since its first light in 1998, SDSS has imaged over 1/3 of the Celestial sphere in five bands and obtained over five million astronomical spectra., Comment: DR12 data are available at http://www.sdss3.org/dr12. 30 pages. 11 figures. Accepted to ApJS
Published: 2015
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22. Mock Quasar-Lyman-{\alpha} Forest Data-sets for the SDSS-III Baryon Oscillation Spectroscopic Survey

Author: Bautista, Julian E., Bailey, Stephen, Font-Ribera, Andreu, Pieri, Matthew M., Busca, Nicolás G., Miralda-Escudé, Jordi, Palanque-Delabrouille, Nathalie, Rich, James, Dawson, Kyle, Feng, Yu, Ge, Jian, Gontcho, Satya Gontcho A, Ho, Shirley, Goff, Jean Marc Le, Noterdaeme, Pasquier, Pâris, Isabelle, Rossi, Graziano, and Schlegel, David
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We describe mock data-sets generated to simulate the high-redshift quasar sample in Data Release 11 (DR11) of the SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS). The mock spectra contain Ly{\alpha} forest correlations useful for studying the 3D correlation function including Baryon Acoustic Oscillations (BAO). They also include astrophysical effects such as quasar continuum diversity and high-density absorbers, instrumental effects such as noise and spectral resolution, as well as imperfections introduced by the SDSS pipeline treatment of the raw data. The Ly{\alpha} forest BAO analysis of the BOSS collaboration, described in Delubac et al. 2014, has used these mock data-sets to develop and cross-check analysis procedures prior to performing the BAO analysis on real data, and for continued systematic cross checks. Tests presented here show that the simulations reproduce sufficiently well important characteristics of real spectra. These mock data-sets will be made available together with the data at the time of the Data Release 11., Comment: 35 pages, 19 figures, Accepted by JCAP
Published: 2014
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23. Cosmological implications of baryon acoustic oscillation (BAO) measurements

Author: Aubourg, Éric, Bailey, Stephen, Bautista, Julian E., Beutler, Florian, Bhardwaj, Vaishali, Bizyaev, Dmitry, Blanton, Michael, Blomqvist, Michael, Bolton, Adam S., Bovy, Jo, Brewington, Howard, Brinkmann, J., Brownstein, Joel R., Burden, Angela, Busca, Nicolás G., Carithers, William, Chuang, Chia-Hsun, Comparat, Johan, Cuesta, Antonio J., Dawson, Kyle S., Delubac, Timothée, Eisenstein, Daniel J., Font-Ribera, Andreu, Ge, Jian, Goff, J. -M. Le, Gontcho, Satya Gontcho A, Gott III, J. Richard, Gunn, James E., Guo, Hong, Guy, Julien, Hamilton, Jean-Christophe, Ho, Shirley, Honscheid, Klaus, Howlett, Cullan, Kirkby, David, Kitaura, Francisco S., Kneib, Jean-Paul, Lee, Khee-Gan, Long, Dan, Lupton, Robert H., Magaña, Mariana Vargas, Malanushenko, Viktor, Malanushenko, Elena, Manera, Marc, Maraston, Claudia, Margala, Daniel, McBride, Cameron K., Miralda-Escudé, Jordi, Myers, Adam D., Nichol, Robert C., Noterdaeme, Pasquier, Nuza, Sebastián E., Olmstead, Matthew D., Oravetz, Daniel, Pâris, Isabelle, Padmanabhan, Nikhil, Palanque-Delabrouille, Nathalie, Pan, Kaike, Pellejero-Ibanez, Marcos, Percival, Will J., Petitjean, Patrick, Pieri, Matthew M., Prada, Francisco, Reid, Beth, Roe, Natalie A., Ross, Ashley J., Ross, Nicholas P., Rossi, Graziano, Rubiño-Martín, Jose Alberto, Sánchez, Ariel G., Samushia, Lado, Santos, Ricardo Tanausú Génova, Scóccola, Claudia G., Schlegel, David J., Schneider, Donald P., Seo, Hee-Jong, Sheldon, Erin, Simmons, Audrey, Skibba, Ramin A., Slosar, Anže, Strauss, Michael A., Thomas, Daniel, Tinker, Jeremy L., Tojeiro, Rita, Vazquez, Jose Alberto, Viel, Matteo, Wake, David A., Weaver, Benjamin A., Weinberg, David H., Wood-Vasey, W. M., Yèche, Christophe, Zehavi, Idit, and Zhao, Gong-Bo
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics, General Relativity and Quantum Cosmology, High Energy Physics - Experiment
Abstract: We derive constraints on cosmological parameters and tests of dark energy models from the combination of baryon acoustic oscillation (BAO) measurements with cosmic microwave background (CMB) and Type Ia supernova (SN) data. We take advantage of high-precision BAO measurements from galaxy clustering and the Ly-alpha forest (LyaF) in the BOSS survey of SDSS-III. BAO data alone yield a high confidence detection of dark energy, and in combination with the CMB angular acoustic scale they further imply a nearly flat universe. Combining BAO and SN data into an "inverse distance ladder" yields a 1.7% measurement of $H_0=67.3 \pm1.1$ km/s/Mpc. This measurement assumes standard pre-recombination physics but is insensitive to assumptions about dark energy or space curvature, so agreement with CMB-based estimates that assume a flat LCDM cosmology is an important corroboration of this minimal cosmological model. For open LCDM, our BAO+SN+CMB combination yields $\Omega_m=0.301 \pm 0.008$ and curvature $\Omega_k=-0.003 \pm 0.003$. When we allow more general forms of evolving dark energy, the BAO+SN+CMB parameter constraints remain consistent with flat LCDM. While the overall $\chi^2$ of model fits is satisfactory, the LyaF BAO measurements are in moderate (2-2.5 sigma) tension with model predictions. Models with early dark energy that tracks the dominant energy component at high redshifts remain consistent with our constraints. Expansion history alone yields an upper limit of 0.56 eV on the summed mass of neutrino species, improving to 0.26 eV if we include Planck CMB lensing. Standard dark energy models constrained by our data predict a level of matter clustering that is high compared to most, but not all, observational estimates. (Abridged), Comment: 38 pages, 20 figures, BOSS collaboration paper; v2: fixed inconsistent definitions of DH, added references; v3: version accepted by PRD, corrected error resulting in significantly weaker constraints on decaying dark matter model
Published: 2014
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24. On the effect of the ionising background on the Ly{\alpha} forest autocorrelation function

Author: Gontcho, Satya Gontcho A, Miralda-Escudé, Jordi, and Busca, Nicolás G.
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: An analytical framework is presented to understand the effects of a fluctuating intensity of the cosmic ionising background on the correlations of the Ly{\alpha} forest transmission fraction measured in quasar spectra. In the absence of intensity fluctuations, the Ly{\alpha} power spectrum should have the expected cold dark matter power spectrum with redshift distortions in the linear regime, with a bias factor b_{\delta} and a redshift distortion parameter {\beta} that depend on redshift but are independent of scale. The intensity fluctuations introduce a scale dependence in both b_{\delta} and {\beta}, but keeping their product b_{\delta}{\beta} fixed. Observations of the Ly{\alpha} correlations and cross-correlations with radiation sources like those being done at present in the BOSS survey of SDSS-III (Busca et al. 2013; Slosar et al. 2013; Font-Ribera et al. 2014) have the potential to measure this scale dependence, which reflects the biasing properties of the sources and absorbers of the ionising background. We also compute a second term affecting the Ly{\alpha} spectrum, due to shot noise in the sources of radiation. This term is very large if luminous quasars are assumed to produce the ionising background and to emit isotropically with a constant luminosity, but should be reduced by a contribution from galaxies, and by the finite lifetime and anisotropic emission of quasars., Comment: 12 pages, 6 figures Accepted for publication in MNRAS
Published: 2014
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25. Baryon Acoustic Oscillations in the Ly{\alpha} forest of BOSS DR11 quasars

Author: Delubac, Timothée, Bautista, Julian E., Busca, Nicolás G., Rich, James, Kirkby, David, Bailey, Stephen, Font-Ribera, Andreu, Slosar, Anže, Lee, Khee-Gan, Pieri, Matthew M., Hamilton, Jean-Christophe, Aubourg, Éric, Blomqvist, Michael, Bovy, Jo, Brinkmann, J., Carithers, William, Dawson, Kyle S., Eisenstein, Daniel J., Gontcho, Satya Gontcho A, Kneib, Jean-Paul, Goff, J. -M. Le, Margala, Daniel, Miralda-Escudé, Jordi, Myers, Adam D., Nichol, Robert C., Noterdaeme, Pasquier, O'Connell, Ross, Olmstead, Matthew D., Palanque-Delabrouille, Nathalie, Pâris, Isabelle, Petitjean, Patrick, Ross, Nicholas P., Rossi, Graziano, Schlegel, David J., Schneider, Donald P., Weinberg, David H., Yèche, Christophe, and York, Donald G.
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We report a detection of the baryon acoustic oscillation (BAO) feature in the flux-correlation function of the Ly{\alpha} forest of high-redshift quasars with a statistical significance of five standard deviations. The study uses 137,562 quasars in the redshift range $2.1\le z \le 3.5$ from the Data Release 11 (DR11) of the Baryon Oscillation Spectroscopic Survey (BOSS) of SDSS-III. This sample contains three times the number of quasars used in previous studies. The measured position of the BAO peak determines the angular distance, $D_A(z=2.34)$ and expansion rate, $H(z=2.34)$, both on a scale set by the sound horizon at the drag epoch, $r_d$. We find $D_A/r_d=11.28\pm0.65(1\sigma)^{+2.8}_{-1.2}(2\sigma)$ and $D_H/r_d=9.18\pm0.28(1\sigma)\pm0.6(2\sigma)$ where $D_H=c/H$. The optimal combination, $\sim D_H^{0.7}D_A^{0.3}/r_d$ is determined with a precision of $\sim2\%$. For the value $r_d=147.4~{\rm Mpc}$, consistent with the CMB power spectrum measured by Planck, we find $D_A(z=2.34)=1662\pm96(1\sigma)~{\rm Mpc}$ and $H(z=2.34)=222\pm7(1\sigma)~{\rm km\,s^{-1}Mpc^{-1}}$. Tests with mock catalogs and variations of our analysis procedure have revealed no systematic uncertainties comparable to our statistical errors. Our results agree with the previously reported BAO measurement at the same redshift using the quasar-Ly{\alpha} forest cross-correlation. The auto-correlation and cross-correlation approaches are complementary because of the quite different impact of redshift-space distortion on the two measurements. The combined constraints from the two correlation functions imply values of $D_A/r_d$ and $D_H/r_d$ that are, respectively, 7% low and 7% high compared to the predictions of a flat $\Lambda$CDM cosmological model with the best-fit Planck parameters. With our estimated statistical errors, the significance of this discrepancy is $\approx 2.5\sigma$., Comment: Accepted for publication in A&A. 17 pages, 18 figures
Published: 2014
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26. Cosmological implications of baryon acoustic oscillation measurements

Author: Aubourg, Éric, Bailey, Stephen, Bautista, Julian E, Beutler, Florian, Bhardwaj, Vaishali, Bizyaev, Dmitry, Blanton, Michael, Blomqvist, Michael, Bolton, Adam S, Bovy, Jo, Brewington, Howard, Brinkmann, J, Brownstein, Joel R, Burden, Angela, Busca, Nicolás G, Carithers, William, Chuang, Chia-Hsun, Comparat, Johan, Croft, Rupert AC, Cuesta, Antonio J, Dawson, Kyle S, Delubac, Timothée, Eisenstein, Daniel J, Font-Ribera, Andreu, Ge, Jian, Le Goff, J-M, Gontcho, Satya Gontcho A, Gott, J Richard, Gunn, James E, Guo, Hong, Guy, Julien, Hamilton, Jean-Christophe, Ho, Shirley, Honscheid, Klaus, Howlett, Cullan, Kirkby, David, Kitaura, Francisco S, Kneib, Jean-Paul, Lee, Khee-Gan, Long, Dan, Lupton, Robert H, Magaña, Mariana Vargas, Malanushenko, Viktor, Malanushenko, Elena, Manera, Marc, Maraston, Claudia, Margala, Daniel, McBride, Cameron K, Miralda-Escudé, Jordi, Myers, Adam D, Nichol, Robert C, Noterdaeme, Pasquier, Nuza, Sebastián E, Olmstead, Matthew D, Oravetz, Daniel, Pâris, Isabelle, Padmanabhan, Nikhil, Palanque-Delabrouille, Nathalie, Pan, Kaike, Pellejero-Ibanez, Marcos, Percival, Will J, Petitjean, Patrick, Pieri, Matthew M, Prada, Francisco, Reid, Beth, Rich, James, Roe, Natalie A, Ross, Ashley J, Ross, Nicholas P, Rossi, Graziano, Rubiño-Martín, Jose Alberto, Sánchez, Ariel G, Samushia, Lado, Santos, Ricardo Tanausú Génova, Scóccola, Claudia G, Schlegel, David J, Schneider, Donald P, Seo, Hee-Jong, Sheldon, Erin, Simmons, Audrey, Skibba, Ramin A, Slosar, Anže, Strauss, Michael A, Thomas, Daniel, Tinker, Jeremy L, Tojeiro, Rita, Vazquez, Jose Alberto, Viel, Matteo, Wake, David A, Weaver, Benjamin A, Weinberg, David H, Wood-Vasey, WM, Yèche, Christophe, Zehavi, Idit, and Zhao, Gong-Bo
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, astro-ph.CO, gr-qc, hep-ex
Abstract: We derive constraints on cosmological parameters and tests of dark energy models from the combination of baryon acoustic oscillation (BAO) measurements with cosmic microwave background (CMB) data and a recent reanalysis of Type Ia supernova (SN) data. In particular, we take advantage of high-precision BAO measurements from galaxy clustering and the Lyman-α forest (LyaF) in the SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS). Treating the BAO scale as an uncalibrated standard ruler, BAO data alone yield a high confidence detection of dark energy; in combination with the CMB angular acoustic scale they further imply a nearly flat universe. Adding the CMB-calibrated physical scale of the sound horizon, the combination of BAO and SN data into an "inverse distance ladder" yields a measurement of H0=67.3±1.1 km s-1 Mpc-1, with 1.7% precision. This measurement assumes standard prerecombination physics but is insensitive to assumptions about dark energy or space curvature, so agreement with CMB-based estimates that assume a flat ΛCDM cosmology is an important corroboration of this minimal cosmological model. For constant dark energy (Λ), our BAO+SN+CMB combination yields matter density Ωm=0.301±0.008 and curvature Ωk=-0.003±0.003. When we allow more general forms of evolving dark energy, the BAO+SN+CMB parameter constraints are always consistent with flat ΛCDM values at ≈1σ. While the overall χ2 of model fits is satisfactory, the LyaF BAO measurements are in moderate (2-2.5σ) tension with model predictions. Models with early dark energy that tracks the dominant energy component at high redshift remain consistent with our expansion history constraints, and they yield a higher H0 and lower matter clustering amplitude, improving agreement with some low redshift observations. Expansion history alone yields an upper limit on the summed mass of neutrino species, mν
Published: 2015

27. Baryon acoustic oscillations in the Lyα forest of BOSS DR11 quasars⋆

Author: Delubac, Timothée, Bautista, Julian E, Busca, Nicolás G, Rich, James, Kirkby, David, Bailey, Stephen, Font-Ribera, Andreu, Slosar, Anže, Lee, Khee-Gan, Pieri, Matthew M, Hamilton, Jean-Christophe, Aubourg, Éric, Blomqvist, Michael, Bovy, Jo, Brinkmann, Jon, Carithers, William, Dawson, Kyle S, Eisenstein, Daniel J, Gontcho, Satya Gontcho A, Kneib, Jean-Paul, Le Goff, Jean-Marc, Margala, Daniel, Miralda-Escudé, Jordi, Myers, Adam D, Nichol, Robert C, Noterdaeme, Pasquier, O’Connell, Ross, Olmstead, Matthew D, Palanque-Delabrouille, Nathalie, Pâris, Isabelle, Petitjean, Patrick, Ross, Nicholas P, Rossi, Graziano, Schlegel, David J, Schneider, Donald P, Weinberg, David H, Yèche, Christophe, and York, Donald G
Subjects: cosmology: observations, dark energy, large-scale structure of Universe, cosmological parameters, astro-ph.CO, Astronomical and Space Sciences, Astronomy & Astrophysics
Abstract: We report a detection of the baryon acoustic oscillation (BAO) feature in the three-dimensional correlation function of the transmitted flux fraction in the Lya forest of high-redshift quasars. The study uses 48 640 quasars in the redshift range 2.1 = z = 3.5 from the Baryon Oscillation Spectroscopic Survey (BOSS) of the third generation of the Sloan Digital Sky Survey (SDSS-III). At a mean redshift z = 2.3, we measure the monopole and quadrupole components of the correlation function for separations in the range 20 h-1 Mpc < r < 200 h-1 Mpc. A peak in the correlation function is seen at a separation equal to (1.01 ± 0.03) times the distance expected for the BAO peak within a concordance .CDM cosmology. This first detection of the BAO peak at high redshift, when the universe was strongly matter dominated, results in constraints on the angular diameter distance DA and the expansion rate H at z = 2.3 that, combined with priors on H0 and the baryon density, require the existence of dark energy. Combined with constraints derived from cosmic microwave background observations, this result implies H(z = 2.3) = (224 ± 8) km s-1 Mpc-1, indicating that the time derivative of the cosmological scale parameter .a = H(z = 2.3)/(1 + z) is significantly greater than that measured with BAO at z ∼ 0.5. This demonstrates that the expansion was decelerating in the range 0.7 < z < 2.3, as expected from the matter domination during this epoch. Combined with measurements of H0, one sees the pattern of deceleration followed by acceleration characteristic of a dark-energy dominated universe. © 2013 ESO.
Published: 2015

28. The Tenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Apache Point Observatory Galactic Evolution Experiment

Author: Ahn, Christopher P., Alexandroff, Rachael, Prieto, Carlos Allende, Anders, Friedrich, Anderson, Scott F., Anderton, Timothy, Andrews, Brett H., Aubourg, Éric, Bailey, Stephen, Bastien, Fabienne A., Bautista, Julian E., Beers, Timothy C., Beifiori, Alessandra, Bender, Chad F., Berlind, Andreas A., Beutler, Florian, Bhardwaj, Vaishali, Bird, Jonathan C., Bizyaev, Dmitry, Blake, Cullen H., Blanton, Michael R., Blomqvist, Michael, Bochanski, John J., Bolton, Adam S., Borde, Arnaud, Bovy, Jo, Bradley, Alaina Shelden, Brandt, W. N., Brauer, Dorothée, Brinkmann, J., Brownstein, Joel R., Busca, Nicolás G., Carithers, William, Carlberg, Joleen K., Carnero, Aurelio R., Carr, Michael A., Chiappini, Cristina, Chojnowski, S. Drew, Chuang, Chia-Hsun, Comparat, Johan, Crepp, Justin R., Cristiani, Stefano, Croft, Rupert A. C., Cuesta, Antonio J., Cunha, Katia, da Costa, Luiz N., Dawson, Kyle S., De Lee, Nathan, Dean, Janice D. R., Delubac, Timothée, Deshpande, Rohit, Dhital, Saurav, Ealet, Anne, Ebelke, Garrett L., Edmondson, Edward M., Eisenstein, Daniel J., Epstein, Courtney R., Escoffier, Stephanie, Esposito, Massimiliano, Evans, Michael L., Fabbian, D., Fan, Xiaohui, Favole, Ginevra, Castellá, Bruno Femenía, Alvar, Emma Fernández, Feuillet, Diane, Ak, Nurten Filiz, Finley, Hayley, Fleming, Scott W., Font-Ribera, Andreu, Frinchaboy, Peter M., Galbraith-Frew, J. G., García-Hernández, D. A., Pérez, Ana E. García, Ge, Jian, Génova-Santos, R., Gillespie, Bruce A., Girardi, Léo, Hernández, Jonay I. González, Gott III, J. Richard, Gunn, James E., Guo, Hong, Halverson, Samuel, Harding, Paul, Harris, David W., Hasselquist, Sten, Hawley, Suzanne L., Hayden, Michael, Hearty, Frederick R., Davó, Artemio Herrero, Ho, Shirley, Hogg, David W., Holtzman, Jon A., Honscheid, Klaus, Huehnerhoff, Joseph, Ivans, Inese I., Jackson, Kelly M., Jiang, Peng, Johnson, Jennifer A., Kirkby, David, Kinemuchi, K., Klaene, Mark A., Kneib, Jean-Paul, Koesterke, Lars, Lan, Ting-Wen, Lang, Dustin, Goff, Jean-Marc Le, Lee, Khee-Gan, Lee, Young Sun, Long, Daniel C., Loomis, Craig P., Lucatello, Sara, Lupton, Robert H., Ma, Bo, Mack III, Claude E., Mahadevan, Suvrath, Maia, Marcio A. G., Majewski, Steven R., Malanushenko, Elena, Malanushenko, Viktor, Manchado, A., Manera, Marc, Maraston, Claudia, Margala, Daniel, Martell, Sarah L., Masters, Karen L., McBride, Cameron K., McGreer, Ian D., McMahon, Richard G., Ménard, Brice, Mészáros, Sz., Miralda-Escudé, Jordi, Miyatake, Hironao, Montero-Dorta, Antonio D., Montesano, Francesco, More, Surhud, Morrison, Heather L., Muna, Demitri, Munn, Jeffrey A., Myers, Adam D., Nguyen, Duy Cuong, Nichol, Robert C., Nidever, David L., Noterdaeme, Pasquier, Nuza, Sebastián E., O'Connell, Julia E., O'Connell, Robert W., O'Connell, Ross, Olmstead, Matthew D., Oravetz, Daniel J., Owen, Russell, Padmanabhan, Nikhil, Palanque-Delabrouille, Nathalie, Pan, Kaike, Parejko, John K., Pâris, Isabelle, Pepper, Joshua, Percival, Will J., Pérez-Ràfols, Ignasi, Perottoni, Hélio Dotto, Petitjean, Patrick, Pieri, Matthew M., Pinsonneault, M. H., Prada, Francisco, Price-Whelan, Adrian M., Raddick, M. Jordan, Rahman, Mubdi, Rebolo, Rafael, Reid, Beth A., Richards, Jonathan C., Riffel, Rogério, Robin, Annie C., Rocha-Pinto, H. J., Rockosi, Constance M., Roe, Natalie A., Ross, Ashley J., Ross, Nicholas P., Rossi, Graziano, Roy, Arpita, Rubiño-Martin, J. A., Sabiu, Cristiano G., Sánchez, Ariel G., Santiago, Basílio, Sayres, Conor, Schiavon, Ricardo P., Schlegel, David J., Schlesinger, Katharine J., Schmidt, Sarah J., Schneider, Donald P., Schultheis, Mathias, Sellgren, Kris, Seo, Hee-Jong, Shen, Yue, Shetrone, Matthew, Shu, Yiping, Simmons, Audrey E., Skrutskie, M. F., Slosar, Anže, Smith, Verne V., Snedden, Stephanie A., Sobeck, Jennifer S., Sobreira, Flavia, Stassun, Keivan G., Steinmetz, Matthias, Strauss, Michael A., Streblyanska, Alina, Suzuki, Nao, Swanson, Molly E. C., Terrien, Ryan C., Thakar, Aniruddha R., Thomas, Daniel, Thompson, Benjamin A., Tinker, Jeremy L., Tojeiro, Rita, Troup, Nicholas W., Vandenberg, Jan, Magaña, Mariana Vargas, Viel, Matteo, Vogt, Nicole P., Wake, David A., Weaver, Benjamin A., Weinberg, David H., Weiner, Benjamin J., White, Martin, White, Simon D. M., Wilson, John C., Wisniewski, John P., Wood-Vasey, W. M., Yèche, Christophe, York, Donald G., Zamora, O., Zasowski, Gail, Zehavi, Idit, Zheng, Zheng, and Zhu, Guangtun
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Astrophysics of Galaxies
Abstract: The Sloan Digital Sky Survey (SDSS) has been in operation since 2000 April. This paper presents the tenth public data release (DR10) from its current incarnation, SDSS-III. This data release includes the first spectroscopic data from the Apache Point Observatory Galaxy Evolution Experiment (APOGEE), along with spectroscopic data from the Baryon Oscillation Spectroscopic Survey (BOSS) taken through 2012 July. The APOGEE instrument is a near-infrared R~22,500 300-fiber spectrograph covering 1.514--1.696 microns. The APOGEE survey is studying the chemical abundances and radial velocities of roughly 100,000 red giant star candidates in the bulge, bar, disk, and halo of the Milky Way. DR10 includes 178,397 spectra of 57,454 stars, each typically observed three or more times, from APOGEE. Derived quantities from these spectra (radial velocities, effective temperatures, surface gravities, and metallicities) are also included.DR10 also roughly doubles the number of BOSS spectra over those included in the ninth data release. DR10 includes a total of 1,507,954 BOSS spectra, comprising 927,844 galaxy spectra; 182,009 quasar spectra; and 159,327 stellar spectra, selected over 6373.2 square degrees., Comment: 15 figures; 1 table. Accepted to ApJS. DR10 is available at http://www.sdss3.org/dr10 v3 fixed 3 diacritic markings in the arXiv HTML listing of the author names
Published: 2013
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29. The one-dimensional Ly-alpha forest power spectrum from BOSS

Author: Palanque-Delabrouille, Nathalie, Yèche, Christophe, Borde, Arnaud, Goff, Jean-Marc Le, Rossi, Graziano, Viel, Matteo, Aubourg, Éric, Bailey, Stephen, Bautista, Julian, Blomqvist, Michael, Bolton, Adam, Bolton, James S., Busca, Nicolás G., Carithers, Bill, Croft, Rupert A. C., Dawson, Kyle S., Delubac, Timothée, Font-Ribera, Andreu, Ho, Shirley, Kirkby, David, Lee, Khee-Gan, Margala, Daniel, Miralda-Escudé, Jordi, Muna, Demitri, Myers, Adam D., Noterdaeme, Pasquier, Pâris, Isabelle, Petitjean, Patrick, Pieri, Matthew M., Rich, James, Rollinde, Emmanuel, Ross, Nicholas P., Schlegel, David J., Schneider, Donald P., Slosar, Anže, and Weinberg, David H.
Subjects: Astrophysics - Cosmology and Extragalactic Astrophysics
Abstract: We have developed two independent methods to measure the one-dimensional power spectrum of the transmitted flux in the Lyman-$\alpha$ forest. The first method is based on a Fourier transform, and the second on a maximum likelihood estimator. The two methods are independent and have different systematic uncertainties. The determination of the noise level in the data spectra was subject to a novel treatment, because of its significant impact on the derived power spectrum. We applied the two methods to 13,821 quasar spectra from SDSS-III/BOSS DR9 selected from a larger sample of over 60,000 spectra on the basis of their high quality, large signal-to-noise ratio, and good spectral resolution. The power spectra measured using either approach are in good agreement over all twelve redshift bins from $ = 2.2$ to $ = 4.4$, and scales from 0.001 $\rm(km/s)^{-1}$ to $0.02 \rm(km/s)^{-1}$. We determine the methodological and instrumental systematic uncertainties of our measurements. We provide a preliminary cosmological interpretation of our measurements using available hydrodynamical simulations. The improvement in precision over previously published results from SDSS is a factor 2--3 for constraints on relevant cosmological parameters. For a $\Lambda$CDM model and using a constraint on $H_0$ that encompasses measurements based on the local distance ladder and on CMB anisotropies, we infer $\sigma_8 =0.83\pm0.03$ and $n_s= 0.97\pm0.02$ based on \ion{H}{i} absorption in the range $2.1
Published: 2013
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30. Measurement of Baryon Acoustic Oscillations in the Lyman-alpha Forest Fluctuations in BOSS Data Release 9

Author: Slosar, Anže, Iršič, Vid, Kirkby, David, Bailey, Stephen, Busca, Nicolás G., Delubac, Timothée, Rich, James, Aubourg, Éric, Bautista, Julian E., Bhardwaj, Vaishali, Blomqvist, Michael, Bolton, Adam S., Bovy, Jo, Brownstein, Joel, Carithers, Bill, Croft, Rupert A. C., Dawson, Kyle S., Font-Ribera, Andreu, Goff, J. -M. Le, Ho, Shirley, Honscheid, Klaus, Lee, Khee-Gan, Margala, Daniel, McDonald, Patrick, Medolin, Bumbarija, Miralda-Escudé, Jordi, Myers, Adam D., Nichol, Robert C., Noterdaeme, Pasquier, Palanque-Delabrouille, Nathalie, Pâris, Isabelle, Petitjean, Patrick, Pieri, Matthew M., Piškur, Yodovina, Roe, Natalie A., Ross, Nicholas P., Rossi, Graziano, Schlegel, David J., Schneider, Donald P., Sheldon, Erin S., Seljak, Uroš, Viel, Matteo, Weinberg, David H., and Yèche, Christophe
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Experiment
Abstract: We use the Baryon Oscillation Spectroscopic Survey (BOSS) Data Release 9 (DR9) to detect and measure the position of the Baryonic Acoustic Oscillation (BAO) feature in the three-dimensional correlation function in the Lyman-alpha forest flux fluctuations at a redshift z=2.4. The feature is clearly detected at significance between 3 and 5 sigma (depending on the broadband model and method of error covariance matrix estimation) and is consistent with predictions of the standard LCDM model. We assess the biases in our method, stability of the error covariance matrix and possible systematic effects. We fit the resulting correlation function with several models that decouple the broadband and acoustic scale information. For an isotropic dilation factor, we measure 100x(alpha_iso-1) = -1.6 ^{+2.0+4.3+7.4}_{-2.0-4.1-6.8} (stat.) +/- 1.0 (syst.) (multiple statistical errors denote 1,2 and 3 sigma confidence limits) with respect to the acoustic scale in the fiducial cosmological model (flat LCDM with Omega_m=0.27, h=0.7). When fitting separately for the radial and transversal dilation factors we find marginalised constraints 100x(alpha_par-1) = -1.3 ^{+3.5+7.6 +12.3}_{-3.3-6.7-10.2} (stat.) +/- 2.0 (syst.) and 100x(alpha_perp-1) = -2.2 ^{+7.4+17}_{-7.1-15} +/- 3.0 (syst.). The dilation factor measurements are significantly correlated with cross-correlation coefficient of ~ -0.55. Errors become significantly non-Gaussian for deviations over 3 standard deviations from best fit value. Because of the data cuts and analysis method, these measurements give tighter constraints than a previous BAO analysis of the BOSS DR9 Lyman-alpha forest sample, providing an important consistency test of the standard cosmological model in a new redshift regime., Comment: v2: replaced with version accepted by JCAP: a few co-authors, modest expansion and clarification of the text, references added, no change in results
Published: 2013
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31. Fitting Methods for Baryon Acoustic Oscillations in the Lyman-{\alpha} Forest Fluctuations in BOSS Data Release 9

Author: Kirkby, David, Margala, Daniel, Slosar, Anže, Bailey, Stephen, Busca, Nicolás G., Delubac, Timothée, Rich, James, Blomqvist, Michael, Brownstein, Joel R., Carithers, Bill, Croft, Rupert A. C., Dawson, Kyle S., Font-Ribera, Andreu, Miralda-Escudé, Jordi, Myers, Adam D., Nichol, Robert C., Palanque-Delabrouille, Nathalie, Pâris, Isabelle, Petitjean, Patrick, Rossi, Graziano, Schlegel, David J., Schneider, Donald P., Viel, Matteo, Weinberg, David H., and Yèche, Christophe
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We describe fitting methods developed to analyze fluctuations in the Lyman-{\alpha} forest and measure the parameters of baryon acoustic oscillations (BAO). We apply our methods to BOSS Data Release 9. Our method is based on models of the three-dimensional correlation function in physical coordinate space, and includes the effects of redshift-space distortions, anisotropic non-linear broadening, and broadband distortions. We allow for independent scale factors along and perpendicular to the line of sight to minimize the dependence on our assumed fiducial cosmology and to obtain separate measurements of the BAO angular and relative velocity scales. Our fitting software and the input files needed to reproduce our main BOSS Data Release 9 results are publicly available., Comment: Submitted to JCAP, 38 pages, 26 figures
Published: 2013
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32. The BOSS Lyman-alpha Forest Sample from SDSS Data Release 9

Author: Lee, Khee-Gan, Bailey, Stephen, Bartsch, Leslie E., Carithers, William, Dawson, Kyle S., Kirkby, David, Lundgren, Britt, Margala, Daniel, Palanque-Delabrouille, Nathalie, Pieri, Matthew M., Schlegel, David J., Weinberg, David H., Yeche, Christophe, Aubourg, Eric, Bautista, Julian, Bizyaev, Dmitry, Blomqvist, Michael, Bolton, Adam S., Borde, Arnaud, Brewington, Howard, Busca, Nicolas G., Croft, Rupert A. C., Delubac, Timothee, Ebelke, Garrett, Eisenstein, Daniel J., Font-Ribera, Andreu, Ge, Jian, Hamilton, Jean-Christophe, Hennawi, Joseph F., Ho, Shirley, Honscheid, Klaus, Goff, Jean-Marc Le, Malanushenko, Elena, Malanushenko, Viktor, Miralda-Escude, Jordi, Myers, Adam D., Noterdaeme, Pasquier, Oravetz, Daniel, Pan, Kaike, Paris, Isabelle, Petitjean, Patrick, Rich, James, Rollinde, Emmanuel, Ross, Nicholas P., Rossi, Graziano, Schneider, Donald P., Simmons, Audrey, Snedden, Stephanie, Slosar, Anze, Spergel, David N., Suzuki, Nao, Viel, Matteo, and Weaver, Benjamin A.
Subjects: Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present the BOSS Lyman-alpha (Lya) Forest Sample from SDSS Data Release 9, comprising 54,468 quasar spectra with zqso > 2.15 suitable for Lya forest analysis. This data set probes the intergalactic medium with absorption redshifts 2.0 < z_alpha < 5.7 over an area of 3275 square degrees, and encompasses an approximate comoving volume of 20 h^-3 Gpc^3. With each spectrum, we have included several products designed to aid in Lya forest analysis: improved sky masks that flag pixels where data may be unreliable, corrections for known biases in the pipeline estimated noise, masks for the cores of damped Lya systems and corrections for their wings, and estimates of the unabsorbed continua so that the observed flux can be converted to a fractional transmission. The continua are derived using a principal component fit to the quasar spectrum redwards of restframe Lya (lambda > 1216 Ang), extrapolated into the forest region and normalized by a linear function to fit the expected evolution of the Lya forest mean-flux. The estimated continuum errors are ~5% rms. We also discuss possible systematics arising from uncertain spectrophotometry and artifacts in the flux calibration; global corrections for the latter are provided. Our sample provides a convenient starting point for users to analyze clustering in BOSS Lya forest data, and it provides a fiducial data set that can be used to compare results from different analyses of baryon acoustic oscillations in the Lya forest. The full data set is available from the SDSS-III DR9 web site., Comment: 15 pages, 11 figures; Submitted to AJ
Published: 2012
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33. Baryon Acoustic Oscillations in the Ly-\alpha\ forest of BOSS quasars

Author: Busca, Nicolás G., Delubac, Timothée, Rich, James, Bailey, Stephen, Font-Ribera, Andreu, Kirkby, David, Goff, J. -M. Le, Pieri, Matthew M., Slosar, Anze, Aubourg, Éric, Bautista, Julian E., Bizyaev, Dmitry, Blomqvist, Michael, Bolton, Adam S., Bovy, Jo, Brewington, Howard, Borde, Arnaud, Brinkmann, J., Carithers, Bill, Croft, Rupert A. C., Dawson, Kyle S., Ebelke, Garrett, Eisenstein, Daniel J., Hamilton, Jean-Christophe, Ho, Shirley, Hogg, David W., Honscheid, Klaus, Lee, Khee-Gan, Lundgren, Britt, Malanushenko, Elena, Malanushenko, Viktor, Margala, Daniel, Maraston, Claudia, Mehta, Kushal, Miralda-Escudé, Jordi, Myers, Adam D., Nichol, Robert C., Noterdaeme, Pasquier, Olmstead, Matthew D., Oravetz, Daniel, Palanque-Delabrouille, Nathalie, Pan, Kaike, Pâris, Isabelle, Percival, Will J., Petitjean, Patrick, Roe, N. A., Rollinde, Emmanuel, Ross, Nicholas P., Rossi, Graziano, Schlegel, David J., Schneider, Donald P., Shelden, Alaina, Sheldon, Erin S., Simmons, Audrey, Snedden, Stephanie, Tinker, Jeremy L., Viel, Matteo, Weaver, Benjamin A., Weinberg, David H., White, Martin, Yèche, Christophe, and York, Donald G.
Subjects: Astrophysics - Cosmology and Extragalactic Astrophysics
Abstract: We report a detection of the baryon acoustic oscillation (BAO) feature in the three-dimensional correlation function of the transmitted flux fraction in the \Lya forest of high-redshift quasars. The study uses 48,640 quasars in the redshift range $2.1\le z \le 3.5$ from the Baryon Oscillation Spectroscopic Survey (BOSS) of the third generation of the Sloan Digital Sky Survey (SDSS-III). At a mean redshift $z=2.3$, we measure the monopole and quadrupole components of the correlation function for separations in the range $20\hMpc
Published: 2012
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34. Extended clustering analyses to constrain the deflection angular scale and source density of the ultra-high-energy cosmic rays

Author: Decerprit, Guillaume, Busca, Nicolas G., and Parizot, Etienne
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: The search of a clustering signal in the arrival directions of ultra-high-energy cosmic rays (UHECRs) is a standard method to assess the level of anisotropy of the data sets under investigation. Here, we first show how to quantify the sensitivity of a UHECR detector to the detection of anisotropy, and then propose a new method that pushes forward the study of the two-point auto-correlation function, enabling one to put astrophysically meaningful constraints on both the effective UHECR source density and the angular deflections that these charged particles suffer while they propagate through the galactic and intergalactic magnetic fields. We apply the method to simulated data sets obtained under various astrophysical conditions, and show how the input model parameters can be estimated through our analysis, introducing the notion of "clustering similarity" (between data sets), to which we give a precise statistical meaning. We also study how the constraining power of the method is influenced by the size of the data set under investigation, the minimum energy of the UHECRs to which it is applied, and a prior assumption about the underlying source distribution. We also show that this method is particularly adapted to data sets consisting of a few tens to a few hundreds of events, which corresponds to the current and near-future observational situation in the field of UHECRs., Comment: 12 pages, 10 figures, accepted for publication in Astronomy & Astrophysics
Published: 2011
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35. SDSS-III: Massive Spectroscopic Surveys of the Distant Universe, the Milky Way Galaxy, and Extra-Solar Planetary Systems

Author: Eisenstein, Daniel J., Weinberg, David H., Agol, Eric, Aihara, Hiroaki, Prieto, Carlos Allende, Anderson, Scott F., Arns, James A., Aubourg, Eric, Bailey, Stephen, Balbinot, Eduardo, Barkhouser, Robert, Beers, Timothy C., Berlind, Andreas A., Bickerton, Steven J., Bizyaev, Dmitry, Blanton, Michael R., Bochanski, John J., Bolton, Adam S., Bosman, Casey T., Bovy, Jo, Brewington, Howard J., Brandt, W. N., Breslauer, Ben, Brinkmann, J., Brown, Peter J., Brownstein, Joel R., Burger, Dan, Busca, Nicolas G., Campbell, Heather, Cargile, Phillip A., Carithers, William C., Carlberg, Joleen K., Carr, Michael A., Chen, Yanmei, Chiappini, Cristina, Comparat, Johan, Connolly, Natalia, Cortes, Marina, Croft, Rupert A. C., da Costa, Luiz N., Cunha, Katia, Davenport, James R. A., Dawson, Kyle, De Lee, Nathan, de Mello, Gustavo F. Porto, de Simoni, Fernando, Dean, Janice, Dhital, Saurav, Ealet, Anne, Ebelke, Garrett L., Edmondson, Edward M., Eiting, Jacob M., Escoffier, Stephanie, Esposito, Massimiliano, Evans, Michael L., Fan, Xiaohui, Castella, Bruno Femenia, Ferreira, Leticia Dutra, Fitzgerald, Greg, Fleming, Scott W., Font-Ribera, Andreu, Ford, Eric B., Frinchaboy, Peter M., Perez, Ana Elia Garcia, Gaudi, B. Scott, Ge, Jian, Ghezzi, Luan, Gillespie, Bruce A., Gilmore, G., Girardi, Leo, Gott, J. Richard, Gould, Andrew, Grebel, Eva K., Gunn, James E., Hamilton, Jean-Christophe, Harding, Paul, Harris, David W., Hawley, Suzanne L., Hearty, Frederick R., Hernandez, Jonay I. Gonzalez, Ho, Shirley, Hogg, David W., Holtzman, Jon A., Honscheid, Klaus, Inada, Naohisa, Ivans, Inese I., Jiang, Linhua, Jiang, Peng, Johnson, Jennifer A., Jordan, Cathy, Jordan, Wendell P., Kauffmann, Guinevere, Kazin, Eyal, Kirkby, David, Klaene, Mark A., Kneib, Jean-Paul, Knapp, G. R., Kochanek, C. S., Koesterke, Lars, Kollmeier, Juna A., Kron, Richard G., Lang, Dustin, Lawler, James E., Goff, Jean-Marc Le, Lee, Brian L., Lee, Young Sun, Leisenring, Jarron M., Lin, Yen-Ting, Liu, Jian, Long, Daniel C., Loomis, Craig P., Lucatello, Sara, Lundgren, Britt, Lupton, Robert H., Ma, Bo, Ma, Zhibo, MacDonald, Nicholas, Mack, Claude, Mahadevan, Suvrath, Maia, Marcio A. G., Malanushenko, Elena, Malanushenko, Viktor, Majewski, Steven R., Makler, Martin, Mandelbaum, Rachel, Maraston, Claudia, Margala, Daniel, Maseman, Paul, Masters, Karen L., McBride, Cameron K., McDonald, Patrick, McGreer, Ian D., McMahon, Richard G., Requejo, Olga Mena, Menard, Brice, Miralda-Escude, Jordi, Morrison, Heather L., Mullally, Fergal, Muna, Demitri, Murayama, Hitoshi, Myers, Adam D., Naugle, Tracy, Neto, Angelo Fausti, Nguyen, Duy Cuong, Nichol, Robert C., Nidever, David L., O'Connell, Robert W., Ogando, Ricardo L. C., Olmstead, Matthew D., Oravetz, Daniel J., Padmanabhan, Nikhil, Paegert, Martin, Palanque-Delabrouille, Nathalie, Pan, Kaike, Pandey, Parul, Parejko, John K., Paris, Isabelle, Pellegrini, Paulo, Pepper, Joshua, Percival, Will J., Petitjean, Patrick, Pfaffenberger, Robert, Pforr, Janine, Phleps, Stefanie, Pichon, Christophe, Pieri, Matthew M., Prada, Francisco, Price-Whelan, Adrian M., Raddick, M. Jordan, Ramos, Beatriz H. F., Ryle, Celine, Reid, I. Neill, Rich, James, Richards, Gordon T., Rieke, George H., Rieke, Marcia J., Rix, Hans-Walter, Robin, Annie C., Rocha-Pinto, Helio J., Rockosi, Constance M., Roe, Natalie A., Rollinde, Emmanuel, Ross, Ashley J., Ross, Nicholas P., Rossetto, Bruno, Sanchez, Ariel G., Santiago, Basilio, Sayres, Conor, Schiavon, Ricardo, Schlegel, David J., Schlesinger, Katharine J., Schmidt, Sarah J., Schneider, Donald P., Sellgren, Kris, Shelden, Alaina, Sheldon, Erin, Shetrone, Matthew, Shu, Yiping, Silverman, John D., Simmerer, Jennifer, Simmons, Audrey E., Sivarani, Thirupathi, Skrutskie, M. F., Slosar, Anze, Smee, Stephen, Smith, Verne V., Snedden, Stephanie A., Stassun, Keivan G., Steele, Oliver, Steinmetz, Matthias, Stockett, Mark H., Stollberg, Todd, Strauss, Michael A., Tanaka, Masayuki, Thakar, Aniruddha R., Thomas, Daniel, Tinker, Jeremy L., Tofflemire, Benjamin M., Tojeiro, Rita, Tremonti, Christy A., Magana, Mariana Vargas, Verde, Licia, Vogt, Nicole P., Wake, David A., Wan, Xiaoke, Wang, Ji, Weaver, Benjamin A., White, Martin, White, Simon D. M., Wilson, John C., Wisniewski, John P., Wood-Vasey, W. Michael, Yanny, Brian, Yasuda, Naoki, Yeche, Christophe, York, Donald G., Young, Erick, Zasowski, Gail, Zehavi, Idit, and Zhao, Bo
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: Building on the legacy of the Sloan Digital Sky Survey (SDSS-I and II), SDSS-III is a program of four spectroscopic surveys on three scientific themes: dark energy and cosmological parameters, the history and structure of the Milky Way, and the population of giant planets around other stars. In keeping with SDSS tradition, SDSS-III will provide regular public releases of all its data, beginning with SDSS DR8 (which occurred in Jan 2011). This paper presents an overview of the four SDSS-III surveys. BOSS will measure redshifts of 1.5 million massive galaxies and Lya forest spectra of 150,000 quasars, using the BAO feature of large scale structure to obtain percent-level determinations of the distance scale and Hubble expansion rate at z<0.7 and at z~2.5. SEGUE-2, which is now completed, measured medium-resolution (R=1800) optical spectra of 118,000 stars in a variety of target categories, probing chemical evolution, stellar kinematics and substructure, and the mass profile of the dark matter halo from the solar neighborhood to distances of 100 kpc. APOGEE will obtain high-resolution (R~30,000), high signal-to-noise (S/N>100 per resolution element), H-band (1.51-1.70 micron) spectra of 10^5 evolved, late-type stars, measuring separate abundances for ~15 elements per star and creating the first high-precision spectroscopic survey of all Galactic stellar populations (bulge, bar, disks, halo) with a uniform set of stellar tracers and spectral diagnostics. MARVELS will monitor radial velocities of more than 8000 FGK stars with the sensitivity and cadence (10-40 m/s, ~24 visits per star) needed to detect giant planets with periods up to two years, providing an unprecedented data set for understanding the formation and dynamical evolution of giant planet systems. (Abridged), Comment: Revised to version published in The Astronomical Journal
Published: 2011
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36. The Eighth Data Release of the Sloan Digital Sky Survey: First Data from SDSS-III

Author: collaboration, SDSS-III, Aihara, Hiroaki, Prieto, Carlos Allende, An, Deokkeun, Anderson, Scott F., Aubourg, Éric, Balbinot, Eduardo, Beers, Timothy C., Berlind, Andreas A., Bickerton, Steven J., Bizyaev, Dmitry, Blanton, Michael R., Bochanski, John J., Bolton, Adam S., Bovy, Jo, Brandt, W. N., Brinkmann, J., Brown, Peter J., Brownstein, Joel R., Busca, Nicolas G., Campbell, Heather, Carr, Michael A., Chen, Yanmei, Chiappini, Cristina, Comparat, Johan, Connolly, Natalia, Cortes, Marina, Croft, Rupert A. C., Cuesta, Antonio J., da Costa, Luiz N., Davenport, James R. A., Dawson, Kyle, Dhital, Saurav, Ealet, Anne, Ebelke, Garrett L., Edmondson, Edward M., Eisenstein, Daniel J., Escoffier, Stephanie, Esposito, Massimiliano, Evans, Michael L., Fan, Xiaohui, Castellá, Bruno Femení a, Font-Ribera, Andreu, Frinchaboy, Peter M., Ge, Jian, Gillespie, Bruce A., Gilmore, G., Hernández, Jonay I. González, Gott, J. Richard, Gould, Andrew, Grebel, Eva K., Gunn, James E., Hamilton, Jean-Christophe, Harding, Paul, Harris, David W., Hawley, Suzanne L., Hearty, Frederick R., Ho, Shirley, Hogg, David W., Holtzman, Jon A., Honscheid, Klaus, Inada, Naohisa, Ivans, Inese I., Jiang, Linhua, Johnson, Jennifer A., Jordan, Cathy, Jordan, Wendell P., Kazin, Eyal A., Kirkby, David, Klaene, Mark A., Knapp, G. R., Kneib, Jean-Paul, Kochanek, C. S., Koesterke, Lars, Kollmeier, Juna A., Kron, Richard G., Lampeitl, Hubert, Lang, Dustin, Goff, Jean-Marc Le, Lee, Young Sun, Lin, Yen-Ting, Long, Daniel C., Loomis, Craig P., Lucatello, Sara, Lundgren, Britt, Lupton, Robert H., Ma, Zhibo, MacDonald, Nicholas, Mahadevan, Suvrath, Maia, Marcio A. G., Makler, Martin, Malanushenko, Elena, Malanushenko, Viktor, Mandelbaum, Rachel, Maraston, Claudia, Margala, Daniel, Masters, Karen L., McBride, Cameron K., McGehee, Peregrine M., McGreer, Ian D., Ménard, Brice, Miralda-Escudé, Jordi, Morrison, Heather L., Mullally, F., Muna, Demitri, Munn, Jeffrey A., Murayama, Hitoshi, Myers, Adam D., Naugle, Tracy, Neto, Angelo Fausti, Nguyen, Duy Cuong, Nichol, Robert C., O'Connell, Robert W., Ogando, Ricardo L. C., Olmstead, Matthew D., Oravetz, Daniel J., Padmanabhan, Nikhil, Palanque-Delabrouille, Nathalie, Pan, Kaike, Pandey, Parul, Pâris, Isabelle, Percival, Will J., Petitjean, Patrick, Pfaffenberger, Robert, Pforr, Janine, Phleps, Stefanie, Pichon, Christophe, Pieri, Matthew M., Prada, Francisco, Price-Whelan, Adrian M., Raddick, M. Jordan, Ramos, Beatriz H. F., Reylé, Céline, Rich, James, Richards, Gordon T., Rix, Hans-Walter, Robin, Annie C., Rocha-Pinto, Helio J., Rockosi, Constance M., Roe, Natalie A., Rollinde, Emmanuel, Ross, Ashley J., Ross, Nicholas P., Rossetto, Bruno M., Sánchez, Ariel G., Sayres, Conor, Schlegel, David J., Schlesinger, Katharine J., Schmidt, Sarah J., Schneider, Donald P., Sheldon, Erin, Shu, Yiping, Simmerer, Jennifer, Simmons, Audrey E., Sivarani, Thirupathi, Snedden, Stephanie A., Sobeck, Jennifer S., Steinmetz, Matthias, Strauss, Michael A., Szalay, Alexander S., Tanaka, Masayuki, Thakar, Aniruddha R., Thomas, Daniel, Tinker, Jeremy L., Tofflemire, Benjamin M., Tojeiro, Rita, Tremonti, Christy A., Vandenberg, Jan, Magaña, M. Vargas, Verde, Licia, Vogt, Nicole P., Wake, David A., Wang, Ji, Weaver, Benjamin A., Weinberg, David H., White, Martin, White, Simon D. M., Yanny, Brian, Yasuda, Naoki, Yeche, Christophe, and Zehavi, Idit
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The Sloan Digital Sky Survey (SDSS) started a new phase in August 2008, with new instrumentation and new surveys focused on Galactic structure and chemical evolution, measurements of the baryon oscillation feature in the clustering of galaxies and the quasar Ly alpha forest, and a radial velocity search for planets around ~8000 stars. This paper describes the first data release of SDSS-III (and the eighth counting from the beginning of the SDSS). The release includes five-band imaging of roughly 5200 deg^2 in the Southern Galactic Cap, bringing the total footprint of the SDSS imaging to 14,555 deg^2, or over a third of the Celestial Sphere. All the imaging data have been reprocessed with an improved sky-subtraction algorithm and a final, self-consistent photometric recalibration and flat-field determination. This release also includes all data from the second phase of the Sloan Extension for Galactic Understanding and Evolution (SEGUE-2), consisting of spectroscopy of approximately 118,000 stars at both high and low Galactic latitudes. All the more than half a million stellar spectra obtained with the SDSS spectrograph have been reprocessed through an improved stellar parameters pipeline, which has better determination of metallicity for high metallicity stars., Comment: Astrophysical Journal Supplements, in press (minor updates from submitted version)
Published: 2011
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37. THE TENTH DATA RELEASE OF THE SLOAN DIGITAL SKY SURVEY: FIRST SPECTROSCOPIC DATA FROM THE SDSS-III APACHE POINT OBSERVATORY GALACTIC EVOLUTION EXPERIMENT

Author: Ahn, Christopher P, Alexandroff, Rachael, Prieto, Carlos Allende, Anders, Friedrich, Anderson, Scott F, Anderton, Timothy, Andrews, Brett H, Aubourg, Éric, Bailey, Stephen, Bastien, Fabienne A, Bautista, Julian E, Beers, Timothy C, Beifiori, Alessandra, Bender, Chad F, Berlind, Andreas A, Beutler, Florian, Bhardwaj, Vaishali, Bird, Jonathan C, Bizyaev, Dmitry, Blake, Cullen H, Blanton, Michael R, Blomqvist, Michael, Bochanski, John J, Bolton, Adam S, Borde, Arnaud, Bovy, Jo, Bradley, Alaina Shelden, Brandt, WN, Brauer, Dorothée, Brinkmann, J, Brownstein, Joel R, Busca, Nicolás G, Carithers, William, Carlberg, Joleen K, Carnero, Aurelio R, Carr, Michael A, Chiappini, Cristina, Chojnowski, S Drew, Chuang, Chia-Hsun, Comparat, Johan, Crepp, Justin R, Cristiani, Stefano, Croft, Rupert AC, Cuesta, Antonio J, Cunha, Katia, da Costa, Luiz N, Dawson, Kyle S, De Lee, Nathan, Dean, Janice DR, Delubac, Timothée, Deshpande, Rohit, Dhital, Saurav, Ealet, Anne, Ebelke, Garrett L, Edmondson, Edward M, Eisenstein, Daniel J, Epstein, Courtney R, Escoffier, Stephanie, Esposito, Massimiliano, Evans, Michael L, Fabbian, D, Fan, Xiaohui, Favole, Ginevra, Castellá, Bruno Femenía, Alvar, Emma Fernández, Feuillet, Diane, Ak, Nurten Filiz, Finley, Hayley, Fleming, Scott W, Font-Ribera, Andreu, Frinchaboy, Peter M, Galbraith-Frew, JG, García-Hernández, DA, Pérez, Ana E García, Ge, Jian, Génova-Santos, R, Gillespie, Bruce A, Girardi, Léo, Hernández, Jonay I González, Gott, J Richard, Gunn, James E, Guo, Hong, Halverson, Samuel, Harding, Paul, Harris, David W, Hasselquist, Sten, Hawley, Suzanne L, Hayden, Michael, Hearty, Frederick R, Davó, Artemio Herrero, Ho, Shirley, Hogg, David W, Holtzman, Jon A, Honscheid, Klaus, Huehnerhoff, Joseph, Ivans, Inese I, Jackson, Kelly M, Jiang, Peng, Johnson, Jennifer A, and Kinemuchi, K
Subjects: atlases, catalogs, surveys, astro-ph.IM, astro-ph.CO, astro-ph.GA, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Physical Chemistry (incl. Structural), Astronomy & Astrophysics
Abstract: The Sloan Digital Sky Survey (SDSS) has been in operation since 2000 April. This paper presents the Tenth Public Data Release (DR10) from its current incarnation, SDSS-III. This data release includes the first spectroscopic data from the Apache Point Observatory Galaxy Evolution Experiment (APOGEE), along with spectroscopic data from the Baryon Oscillation Spectroscopic Survey (BOSS) taken through 2012 July. The APOGEE instrument is a near-infrared R 22,500 300 fiber spectrograph covering 1.514-1.696 μm. The APOGEE survey is studying the chemical abundances and radial velocities of roughly 100,000 red giant star candidates in the bulge, bar, disk, and halo of the Milky Way. DR10 includes 178,397 spectra of 57,454 stars, each typically observed three or more times, from APOGEE. Derived quantities from these spectra (radial velocities, effective temperatures, surface gravities, and metallicities) are also included. DR10 also roughly doubles the number of BOSS spectra over those included in the Ninth Data Release. DR10 includes a total of 1,507,954 BOSS spectra comprising 927,844 galaxy spectra, 182,009 quasar spectra, and 159,327 stellar spectra selected over 6373.2 deg2. © 2014. The American Astronomical Society. All rights reserved..
Published: 2014

38. The one-dimensional Lyα forest power spectrum from BOSS⋆

Author: Palanque-Delabrouille, Nathalie, Yèche, Christophe, Borde, Arnaud, Le Goff, Jean-Marc, Rossi, Graziano, Viel, Matteo, Aubourg, Éric, Bailey, Stephen, Bautista, Julian, Blomqvist, Michael, Bolton, Adam, Bolton, James S, Busca, Nicolás G, Carithers, Bill, Croft, Rupert AC, Dawson, Kyle S, Delubac, Timothée, Font-Ribera, Andreu, Ho, Shirley, Kirkby, David, Lee, Khee-Gan, Margala, Daniel, Miralda-Escudé, Jordi, Muna, Demitri, Myers, Adam D, Noterdaeme, Pasquier, Pâris, Isabelle, Petitjean, Patrick, Pieri, Matthew M, Rich, James, Rollinde, Emmanuel, Ross, Nicholas P, Schlegel, David J, Schneider, Donald P, Slosar, Anže, and Weinberg, David H
Subjects: cosmology: observations, large-scale structure of Universe, intergalactic medium, cosmological parameters, astro-ph.CO, Astronomical and Space Sciences, Astronomy & Astrophysics
Abstract: We have developed two independent methods for measuring the one-dimensional power spectrum of the transmitted flux in the Lyman-α forest. The first method is based on a Fourier transform and the second on a maximum-likelihood estimator. The two methods are independent and have different systematic uncertainties. Determination of the noise level in the data spectra was subject to a new treatment, because of its significant impact on the derived power spectrum. We applied the two methods to 13 821 quasar spectra from SDSS-III/BOSS DR9 selected from a larger sample of over 60 000 spectra on the basis of their high quality, high signal-to-noise ratio (S/N), and good spectral resolution. The power spectra measured using either approach are in good agreement over all twelve redshift bins from 〈z〉 = 2.2 to 〈z〉 = 4.4, and scales from 0.001 km s-1 to 0.02 km s-1. We determined the methodological andinstrumental systematic uncertainties of our measurements. We provide a preliminary cosmological interpretation of our measurements using available hydrodynamical simulations. The improvement in precision over previously published results from SDSS is a factor 2-3 for constraints on relevant cosmological parameters. For a ΛCDM model and using a constraint on H0 that encompasses measurements based on the local distance ladder and on CMB anisotropies, we infer σ8 = 0.83 ± 0.03 and ns = 0.97 ± 0.02 based on Hi absorption in the range 2.1 < z < 3.7. © ESO, 2013.
Published: 2013

39. Baryon Acoustic Oscillations in the Ly-α forest of BOSS quasars

Author: Busca, Nicolás G, Delubac, Timothée, Rich, James, Bailey, Stephen, Font-Ribera, Andreu, Kirkby, David, Goff, J-M Le, Pieri, Matthew M, Slosar, Anze, Aubourg, Éric, Bautista, Julian E, Bizyaev, Dmitry, Blomqvist, Michael, Bolton, Adam S, Bovy, Jo, Brewington, Howard, Borde, Arnaud, Brinkmann, J, Carithers, Bill, Croft, Rupert AC, Dawson, Kyle S, Ebelke, Garrett, Eisenstein, Daniel J, Hamilton, Jean-Christophe, Ho, Shirley, Hogg, David W, Honscheid, Klaus, Lee, Khee-Gan, Lundgren, Britt, Malanushenko, Elena, Malanushenko, Viktor, Margala, Daniel, Maraston, Claudia, Mehta, Kushal, Miralda-Escudé, Jordi, Myers, Adam D, Nichol, Robert C, Noterdaeme, Pasquier, Olmstead, Matthew D, Oravetz, Daniel, Palanque-Delabrouille, Nathalie, Pan, Kaike, Pâris, Isabelle, Percival, Will J, Petitjean, Patrick, Roe, NA, Rollinde, Emmanuel, Ross, Nicholas P, Rossi, Graziano, Schlegel, David J, Schneider, Donald P, Shelden, Alaina, Sheldon, Erin S, Simmons, Audrey, Snedden, Stephanie, Tinker, Jeremy L, Viel, Matteo, Weaver, Benjamin A, Weinberg, David H, White, Martin, Yèche, Christophe, and York, Donald G
Subjects: astro-ph.CO, Astronomical and Space Sciences, Astronomy & Astrophysics, Astronomical sciences, Particle and high energy physics, Space sciences
Abstract: We report a detection of the baryon acoustic oscillation (BAO) feature in thethree-dimensional correlation function of the transmitted flux fraction in the\Lya forest of high-redshift quasars. The study uses 48,640 quasars in theredshift range $2.1\le z \le 3.5$ from the Baryon Oscillation SpectroscopicSurvey (BOSS) of the third generation of the Sloan Digital Sky Survey(SDSS-III). At a mean redshift $z=2.3$, we measure the monopole and quadrupolecomponents of the correlation function for separations in the range$20\hMpc
Published: 2012

40. The Sloan Digital Sky Survey Quasar Catalog: Sixteenth Data Release

Author: Lyke, Brad W., primary, Higley, Alexandra N., additional, McLane, J. N., additional, Schurhammer, Danielle P., additional, Myers, Adam D., additional, Ross, Ashley J., additional, Dawson, Kyle, additional, Chabanier, Solène, additional, Martini, Paul, additional, Busca, Nicolás G., additional, Mas des Bourboux, Hélion du, additional, Salvato, Mara, additional, Streblyanska, Alina, additional, Zarrouk, Pauline, additional, Burtin, Etienne, additional, Anderson, Scott F., additional, Bautista, Julian, additional, Bizyaev, Dmitry, additional, Brandt, W. N., additional, Brinkmann, Jonathan, additional, Brownstein, Joel R., additional, Comparat, Johan, additional, Green, Paul, additional, Macorra, Axel de la, additional, Gutiérrez, Andrea Muñoz, additional, Hou, Jiamin, additional, Newman, Jeffrey A., additional, Palanque-Delabrouille, Nathalie, additional, Pâris, Isabelle, additional, Percival, Will J., additional, Petitjean, Patrick, additional, Rich, James, additional, Rossi, Graziano, additional, Schneider, Donald P., additional, Smith, Alexander, additional, Vivek, M., additional, and Weaver, Benjamin Alan, additional
Published: 2020
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41. The Fourteenth Data Release of the Sloan Digital Sky Survey:First Spectroscopic Data from the Extended Baryon Oscillation Spectroscopic Survey and from the Second Phase of the Apache Point Observatory Galactic Evolution Experiment

Author: Abolfathi , Bela, Aguado , D. S., Aguilar , Gabriela, Prieto , Carlos Allende, Almeida , Andres, Ananna , Tonima Tasnim, Anders , Friedrich, Anderson , Scott F., Andrews , Brett H., Anguiano , Borja, Aragon-Salamanca , Alfonso, Argudo-Fernandez , Maria, Armengaud , Eric, Ata , Metin, Aubourg , Eric, Avila-Reese , Vladimir, Badenes , Carles, Bailey , Stephen, Balland , Christophe, Barger , Kathleen A., Barrera-Ballesteros , Jorge, Bartosz , Curtis, Bastien , Fabienne, Bates , Dominic, Baumgarten , Falk, Bautista , Julian, Beaton , Rachael, Beers , Timothy C., Belfiore , Francesco, Bender , Chad F., Bernardi , Mariangela, Bershady , Matthew A., Beutler , Florian, Bird , Jonathan C., Bizyaev , Dmitry, Blanc , Guillermo A., Blanton , Michael R., Blomqvist , Michael, Bolton , Adam S., Boquien , Médéric, Borissova , Jura, Bovy , Jo, Diaz , Christian Andres Bradna, Brandt , William Nielsen, Brinkmann , Jonathan, Brownstein , Joel R., Bundy , Kevin, Burgasser , Adam J., Burtin , Etienne, Busca , Nicolás G., Canas , Caleb I., Cano-Diaz , Mariana, Cappellari , Michele, Carrera , Ricardo, Casey , Andrew R., Sodi , Bernardo Cervantes, Chen , Yanping, Cherinka , Brian, Chiappini , Cristina, Choi , Peter Doohyun, Chojnowski , Drew, Chuang , Chia-Hsun, Chung , Haeun, Clerc , Nicolas, Cohen , Roger E., Comerford , Julia M., Comparat , Johan, Nascimento , Janaina Correa do, da Costa , Luiz, Cousinou , Marie-Claude, Covey , Kevin, Crane , Jeffrey d., Cruz-Gonzalez , Irene, Cunha , Katia, Ilha , Gabriele da Silva, Damke , Guillermo J., Darling , Jeremy, Davidson Jr. , James W., Dawson , Kyle, Lizaola , Miguel Angel C. de Icaza, de la Macorra , Axel, De La Torre , Sylvain, De Lee , Nathan, Agathe , Victoria de Sainte, Machado , Alice Deconto, Dell'Agli , Flavia, Delubac , Timothée, Diamond-Stanic , Aleksandar M., Donor , John, Downes , Juan Jose, Drory , Niv, Bourboux , Hélion du Mas des, Duckworth , Christopher J., Dwelly , Tom, Dyer , Jamie, Ebelke , Garrett, Eigenbrot , Arthur Davis, Eisenstein , Daniel J., Elsworth , Yvonne P., Emsellem , Eric, Eracleous , Mike, Erfanianfar , Ghazaleh, Escoffier , Stéphanie, Fan , Xiaohui, Alvar , Emma Fernandez, Fernandez-Trincado , J. G., Cirolini , Rafael Fernando, Feuillet , Diane, Finoguenov , Alexis, Fleming , Scott W., Font-Ribera , Andreu, Freischlad , Gordon, Frinchaboy , Peter, Fu , Hai, Chew , Yilen Gomez Maqueo, Galbany , Lluis, Perez , Ana E. Garcia, Garcia-Dias , R., García-Hernández , D. A., Oehmichen , Luis Alberto Garma, Gaulme , Patrick, Gelfand , Joseph, Gil-Marin , Hector, Gillespie , Bruce A., Goddard , Daniel, Hernandez , Jonay I. Gonzalez, Gonzalez-Perez , Violeta, Grabowski , Kathleen, Green , Paul J., Grier , Catherine J., Gueguen , Alain, Guo , Hong, Guy , Julien, Hagen , Alex, Hall , Patrick, Harding , Paul, Hasselquist , Sten, Hawley , Suzanne, Hayes , Christian R., Hearty , Fred, Hekker , Saskia, Hernández , Jesús, Toledo , Hector Hernandez, Hogg , David W., Holley-Bockelmann , Kelly, Holtzman , Jon, Hou , Jiamin, Hsieh , Bau-Ching, Hunt , Jason A. S., Hutchinson , Timothy A., Hwang , Ho Seong, Angel , Camilo Eduardo Jimenez, Johnson , Jennifer A., Jones , Amy, Jönsson , Henrik, Jullo , Eric, Khan , Fahim Sakil, Kinemuchi , Karen, Kirkby , David, Kirkpatrick IV , Charles C., Kitaura , Francisco-Shu, Knapp , Gillian R., Kneib , Jean-Paul, Kollmeier , Juna A., Lacerna , Ivan, Lane , Richard R., Lang , Dustin, Law , David R., Goff , Jean-Marc Le, Lee , Young-Bae, Li , Hongyu, Li , Cheng, Lian , Jianhui, Liang , Yu, Lima , Marcos, Lin , Lihwai, Long , Dan, Lucatello , Sara, Lundgren , Britt, Mackereth , J. Ted, MacLeod , Chelsea L., Mahadevan , Suvrath, Maia , Marcio Antonio Geimba, Majewski , Steven, Manchado , Arturo, Maraston , Claudia, Mariappan , Vivek, Marques-Chaves , Rui, Masseron , Thomas, Masters , Karen L., Mcdermid , Richard M., McGreer , Ian D., Melendez , Matthew, Meneses-Goytia , Sofia, Merloni , Andrea, Merrifield , Michael R., Meszaros , Szabolcs, Meza , Andres, Minchev , Ivan, Minniti , Dante, Prieto , Carlos, Ananna , Tonima, Anderson , Scott, Andrews , Brett, Aragón-Salamanca , Alfonso, Argudo-Fernández , Maria, Barger , Kathleen, Beers , Timothy, Bender , Chad, Bershady , Matthew, Bird , Jonathan, Blanc , Guillermo, Blanton , Michael, Bolton , Adam, Andres , Christian, Diaz , Bradna, Brandt , William, Brownstein , Joel, Burgasser , Adam, Busca , Nicolás, Cañas , Caleb, Cano-Díaz , Mariana, Casey , Andrew, Sodi , Bernardo, Choi , Peter, 10 , Davidson, Angel , Miguel, De Icaza Lizaola , C, De Sainte , Victoria, 72 , Agathe, Machado , Alice, Dell 'agli , Flavia, Diamond-Stanic , Aleksandar, Downes , Juan, du Mas des Bourboux , Hélion, Duckworth , Christopher, Davis Eigenbrot , Arthur, Eisenstein , Daniel, Elsworth , Yvonne, Fernández Alvar , Emma, Fernández-Trincado , J., Cirolini , Rafael, Fleming , Scott, Gómez , Yilen, Chew , Maqueo, Galbany , Lluís, García Pérez , Ana, Alberto , Luis, Oehmichen , Garma, Gil-Marín , Héctor, Gillespie , Bruce, González Hernández , Jonay, Green , Paul, Grier , Catherine, Hayes , Christian, Toledo , Hector, Hogg , David, Hunt , Jason, Hutchinson , Timothy, Hwang , Ho, Jimenez Angel , Camilo, Johnson , Jennifer, Fahim , Sakil, Kirkpatrick , Charles, 94 , Iv, Knapp , Gillian, Kollmeier , Juna, Lane , Richard, Law , DAvid, Le Goff , Jean-Marc, Macleod , Chelsea, Antonio , Marcio, Maia , Geimba, Masters , Karen, Mueller , Eva-Maria, Muller-Sanchez , Francisco, Muna , Demitri, Muñoz , Ricardo, Myers , Adam, Nair , Preethi, Nandra , Kirpal, Ness , Melissa, Newman , Jeffrey, Nichol , Robert, Nidever , David, Nitschelm , Christian, Noterdaeme , Pasquier, O 'connell , Julia, Oelkers , Ryan, Oravetz , Audrey, Oravetz , Daniel, Aquino Ortíz , Erik, Osorio , Yeisson, Pace , Zach, Padilla , Nelson, Palanque-Delabrouille , Nathalie, Palicio , Pedro, Pan , Hsi-An, Pan , Kaike, Parikh , Taniya, Pâris , Isabelle, Park , Changbom, Peirani , Sebastien, Pellejero-Ibanez , Marcos, Penny , Samantha, Percival , Will, Perez-Fournon , Ismael, Petitjean , Patrick, Pieri , Matthew, Pinsonneault , Marc, Pisani , Alice, Prada , Francisco, Prakash , Abhishek, Bárbara De Andrade Queiroz , Anna, Raddick , M, Raichoor , Anand, Rembold , Sandro, Richstein , Hannah, Riffel , Rogemar, Riffel , Rogério, Rix , Hans-Walter, Robin , Annie, Torres , Sergio, Román-Zúñiga , Carlos, Ross , Ashley, Rossi , Graziano, Ruan , John, Ruggeri , Rossana, Ruiz , Jose, Salvato , Mara, Sánchez , Ariel, Sanchez , Sebastian, Sanchez Almeida , Jorge, Sánchez-Gallego , José, Antonio , Felipe, Rojas , Santana, Santiago , Basílio, Schiavon , Ricardo, Schimoia , Jaderson, Schlafly , Edward, Schlegel , David, Schneider , Donald, Schuster , William, Schwope , Axel, Seo , Hee-Jong, Serenelli , Aldo, Shen , Shiyin, Shen , Yue, Shetrone , Matthew, Shull , Michael, Aguirre , Silva, Simon , Joshua, Skrutskie , Mike, Slosar , Anže, Smethurst , Rebecca, Smith , Verne, Sobeck , Jennifer, Somers , Garrett, Souter , Barbara, Souto , Diogo, Spindler , Ashley, Stark , David, Stassun , Keivan, Steinmetz , Matthias, Stello , Dennis, Storchi-Bergmann , Thaisa, Streblyanska , Alina, Stringfellow , Guy, Suárez , Genaro, Sun , Jing, Szigeti , Laszlo, Taghizadeh-Popp , Manuchehr, talbot , michael, Tang , Baitian, Tao , Charling, Tayar , Jamie, Tembe , Mita, Teske , Johanna, Aniruddha R. , Thakar, Daniel , Thomas, Tissera , Patricia, Tojeiro , Rita, Tremonti , Christy, Troup , Nicholas W., Urry , Meg, Valenzuela , O., van den Bosch , Remco, Vargas-González , Jaime, Magaña , Mariana Vargas, Vazquez , Jose Alberto, Villanova , Sandro, Vogt , Nicole, Wake , David, Wang , Yuting, Weaver , Benjamin Alan, Weijmans , Anne-Marie, Weinberg , David H., Westfall , Kyle B., Whelan , David G., Wilcots , Eric, Wild , Vivienne, Williams , Rob A., Wilson , John, Wood-Vasey , W.M., Wylezalek , Dominika, Xiao , Ting, Yan , Renbin, Yang , Meng, Ybarra , Jason E., Yèche , Christophe, Zakamska , Nadia, Zamora , Olga, Zarrouk , Pauline, Zasowski , Gail, Zhang , Kai, Zhao , Chang, Zhao , Gong-Bo, Zheng , Zheng, Zhou , Zhi-Min, Zhu , Guangtun, Zinn , Joel C., Zou , Hu, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Department of Astrophysical Sciences [Princeton], Princeton University, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Department of Astronomy and Astrophysics [PennState], Pennsylvania State University (Penn State), Penn State System-Penn State System, Université Paris Diderot - Paris 7 (UPD7), Department of Physics and Astronomy [Philadelphia], University of Pennsylvania, Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), California Institute of Technology (CALTECH), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Sub-department of Astrophysics [Oxford], Department of Physics [Oxford], University of Oxford-University of Oxford, Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département de Physique des Particules (ex SPP) (DPhP), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, European Southern Observatory (ESO), Univers, Transport, Interfaces, Nanostructures, Atmosphère et environnement, Molécules (UMR 6213) (UTINAM), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Max-Planck-Institut für Astronomie (MPIA), Max-Planck-Gesellschaft, Department of Physics and Astronomy [Irvine], University of California [Irvine] (UC Irvine), University of California (UC)-University of California (UC), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA (UMR_8109)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Departamento de Matemáticas [Madrid], Universidad Autónoma de Madrid (UAM), Department of Physics and Astronomy [Nashville], Vanderbilt University [Nashville], Korea Institute for Advanced Study (KIAS), Sainsbury Laboratory Cambridge University (SLCU), University of Cambridge [UK] (CAM), Wuhan University [China], Equipe de Recherche sur l’Utilisation des Données Individuelles en lien avec la Théorie Economique (ERUDITE), Université Paris-Est Marne-la-Vallée (UPEM)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Institute of Astronomy [Cambridge], Max-Planck-Institut für Astrophysik (MPA), Department of Physics and Astronomy [Rochester], University of Rochester [USA], Institut d'Astrophysique de Paris (IAP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Inflammation, Tissus épithéliaux et Cytokines (LITEC), Université de Poitiers, Recherches Epistémologiques et Historiques sur les Sciences Exactes et les Institutions Scientifiques (REHSEIS (UMR_7596)), Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Galaxies, Etoiles, Physique, Instrumentation (GEPI), Laboratoire d'astrophysique de l'observatoire de Besançon (UMR 6091) (LAOB), Universidad Politécnica de Madrid (UPM), Universidad de Jaén (UJA), Institute of Space Sciences [Barcelona] (ICE-CSIC), Spanish National Research Council [Madrid] (CSIC), University of Edinburgh, Stellar Astrophysics Centre [Aarhus] (SAC), Aarhus University [Aarhus], Alfred P. Sloan Foundation, Department of Energy (US), University of Utah, AVL, AstroParticule et Cosmologie ( APC - UMR 7164 ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ), Institut d'astrophysique spatiale ( IAS ), Université Paris-Sud - Paris 11 ( UP11 ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Centre National de la Recherche Scientifique ( CNRS ), Department of Astronomy and Astrophysics ( PENNSYLVANIA STATE UNIVERSITY ), PennState University [Pennsylvania] ( PSU ), Université Paris Diderot - Paris 7 ( UPD7 ), University of Pennsylvania [Philadelphia], Laboratoire d'Astrophysique de Marseille ( LAM ), Centre National de la Recherche Scientifique ( CNRS ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Aix Marseille Université ( AMU ) -Centre National d'Etudes Spatiales ( CNES ), Astrophysique Interactions Multi-échelles ( AIM - UMR 7158 - UMR E 9005 ), Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Centre National de la Recherche Scientifique ( CNRS ) -Université Paris Diderot - Paris 7 ( UPD7 ), California Institute of Technology ( CALTECH ), Institut de Recherches sur les lois Fondamentales de l'Univers ( IRFU ), Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Université Paris-Saclay, University of Oxford [Oxford]-University of Oxford [Oxford], Imaging Diagnostic Center, Nanfang Hospital Guangzhou, Departamento de FisicaTeorica e IFT-UAM/CSIC, Universidad Autonoma de Madrid ( UAM ), Centre de Physique des Particules de Marseille ( CPPM ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Aix Marseille Université ( AMU ), Carnegie Institution of Washington, AUTRES, Département de Physique des Particules (ex SPP) ( DPP ), Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ) -Université Paris-Saclay, School of Physics and Astronomy, University of Birmingham [Birmingham], European Southern Observatory ( ESO ), Département de Physique Nucléaire (ex SPhN) ( DPHN ), Univers, Transport, Interfaces, Nanostructures, Atmosphère et environnement, Molécules ( UTINAM ), Institut national des sciences de l'Univers ( INSU - CNRS ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Franche-Comté ( UFC ), Max-Planck-Institut für Astronomie ( MPIA ), STScI, University of California [Irvine] ( UCI ), ISO Data Centre ( ESA - Espagne ), European Space Agency ( ESA ), Laboratoire d'études spatiales et d'instrumentation en astrophysique ( LESIA ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), Institut Lagrange de Paris, Sorbonne Universités, Research Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Laboratoire de Physique Nucléaire et de Hautes Énergies ( LPNHE ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), Korea Institute for Advanced Study ( KIAS ), Department of Astronomy ( Ohio State University ), Ohio State University [Columbus] ( OSU ), Institute of Infection, Immunity & Inflammation, University of Glasgow, Sainsbury Laboratory Cambridge, University of Cambridge [UK] ( CAM ), Equipe de Recherche sur l’Utilisation des Données Individuelles en lien avec la Théorie Economique ( ERUDITE ), Université Paris-Est Créteil Val-de-Marne - Paris 12 ( UPEC UP12 ) -Université Paris-Est Marne-la-Vallée ( UPEM ), Institute of Physics, Universidade de Brasilia [Brasília] ( UnB ), Department of Chemical and Biomolecular Engineering, University of California [Berkeley], Max-Planck-Institut für Astrophysik ( MPA ), Bioinformatics and Functional Genomics Research Group, Cancer Research Center (IBMCC-CIC, CSIC-USAL), University of Wisconsin-Madison [Madison], Texas Tech University Health Sciences Center, Texas Tech University [Lubbock] ( TTU ), Institute for Astronomy ( IfA ), University of Hawaii, Research Institute of Organic Agriculture ( FiBL ), Dept. of Physics, Princess Margaret Hospital, University of Toronto-Princess Margaret Hospital, J. A. Baker Institute, Cornell University, The Observatories of the Carnegie Institution for Science, Economics, Bangor, Physics Department, Carnegie Mellon University [Pittsburgh] ( CMU ), Institut d'Astrophysique de Paris ( IAP ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire Inflammation, Tissus épithéliaux et Cytokines ( LITEC ), School of Physics, Korea Institute for Advanced Study, Korea Institute for Advanced Study-Korea Institute for Advanced Study, Recherches Epistémologiques et Historiques sur les Sciences Exactes et les Institutions Scientifiques ( REHSEIS ), Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), Galaxies, Etoiles, Physique, Instrumentation ( GEPI ), Institut national des sciences de l'Univers ( INSU - CNRS ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire d'astrophysique de l'observatoire de Besançon ( LAOB ), Universidad Politécnica de Madrid ( UPM ), Universidad de Jaén ( UJA ), Institute of Space Sciences [Barcelona] ( ICE-CSIC ), Spanish National Research Council [Madrid] ( CSIC ), Department of Physics and Astronomy - Stellar Astrophysics Centre, Department of Physics, The Leverhulme Trust, University of St Andrews. School of Physics and Astronomy, University of St Andrews. Centre for Contemporary Art, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Département de Physique des Particules (ex SPP) (DPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Universidad Autonoma de Madrid (UAM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Université de Franche-Comté (UFC)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), University of California [Irvine] (UCI), University of California-University of California, ISO Data Centre (ESA - Espagne), European Space Agency (ESA), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Department of Astronomy (Ohio State University), Ohio State University [Columbus] (OSU), Universidade de Brasilia [Brasília] (UnB), University of Wisconsin-Madison, Texas Tech University [Lubbock] (TTU), Institute for Astronomy [Honolulu] (IfA), University of Hawai'i [Honolulu] (UH), Research Institute of Organic Agriculture (FiBL), University of Toronto, Bangor University, Carnegie Mellon University [Pittsburgh] (CMU), Recherches Epistémologiques et Historiques sur les Sciences Exactes et les Institutions Scientifiques (REHSEIS), PSL Research University (PSL)-PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'astrophysique de l'observatoire de Besançon (LAOB), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Sorbonne Université (SU), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Université Paris-Est Marne-la-Vallée (UPEM), Research Institute of Organic Agriculture - Forschungsinstitut für biologischen Landbau (FiBL), Cornell University [New York], Carnegie Observatories, Carnegie Institution for Science [Washington], Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)
Subjects: Astrophysics, E-SCIENCE, 01 natural sciences, HISTORIES, TARGET SELECTION, Observatory, QB Astronomy, 010303 astronomy & astrophysics, R2C, QC, media_common, QB, Physics, CATALOGS, Point (typography), ~DC~, Astrophysics::Instrumentation and Methods for Astrophysics, 520 Astronomie und zugeordnete Wissenschaften, atlases, GALAXIES, X-RAY SURVEYS, BDC, Astrophysics - Instrumentation and Methods for Astrophysics, METALLICITY, [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], TELESCOPE, media_common.quotation_subject, astro-ph.GA, Phase (waves), FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, MASS, [ PHYS.ASTR.CO ] Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Data-driven, Data cube, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], surveys, 0103 physical sciences, ddc:530, Instrumentation and Methods for Astrophysics (astro-ph.IM), Astrophysics::Galaxy Astrophysics, 010308 nuclear & particles physics, Astronomy and Astrophysics, DAS, 115 Astronomy, Space science, Catalogues, 530 Physik, Astrophysics - Astrophysics of Galaxies, Galaxy, Baryon, QC Physics, [PHYS.ASTR.GA]Physics [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA], Space and Planetary Science, Sky, Astrophysics of Galaxies (astro-ph.GA), ddc:520, catalogs, astro-ph.IM, SDSS-IV MANGA
Abstract: Open Access. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI., The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since 2014 July. This paper describes the second data release from this phase, and the 14th from SDSS overall (making this Data Release Fourteen or DR14). This release makes the data taken by SDSS-IV in its first two years of operation (2014-2016 July) public. Like all previous SDSS releases, DR14 is cumulative, including the most recent reductions and calibrations of all data taken by SDSS since the first phase began operations in 2000. New in DR14 is the first public release of data from the extended Baryon Oscillation Spectroscopic Survey; the first data from the second phase of the Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE-2), including stellar parameter estimates from an innovative data-driven machine-learning algorithm known as ¿The Cannon¿ and almost twice as many data cubes from the Mapping Nearby Galaxies at APO (MaNGA) survey as were in the previous release (N = 2812 in total). This paper describes the location and format of the publicly available data from the SDSS-IV surveys. We provide references to the important technical papers describing how these data have been taken (both targeting and observation details) and processed for scientific use. The SDSS web site (www.sdss.org) has been updated for this release and provides links to data downloads, as well as tutorials and examples of data use. SDSS-IV is planning to continue to collect astronomical data until 2020 and will be followed by SDSS-V. © 2018. The American Astronomical Society.., Funding for the Sloan Digital Sky Survey IV has been provided by the Alfred P. Sloan Foundation, the U.S. Department of Energy Office of Science, and the Participating Institutions. SDSS-IV acknowledges support and resources from the Center for High-Performance Computing at the University of Utah. The SDSS web site is www.sdss.org.
Published: 2018

42. Baryon acoustic oscillations from the cross-correlation of Lyαabsorption and quasars in eBOSS DR14

Author: Blomqvist, Michael, primary, du Mas des Bourboux, Hélion, additional, Busca, Nicolás G., additional, de Sainte Agathe, Victoria, additional, Rich, James, additional, Balland, Christophe, additional, Bautista, Julian E., additional, Dawson, Kyle, additional, Font-Ribera, Andreu, additional, Guy, Julien, additional, Le Goff, Jean-Marc, additional, Palanque-Delabrouille, Nathalie, additional, Percival, Will J., additional, Pérez-Ràfols, Ignasi, additional, Pieri, Matthew M., additional, Schneider, Donald P., additional, Slosar, Anže, additional, and Yèche, Christophe, additional
Published: 2019
Full Text: View/download PDF

43. Baryon acoustic oscillations at z = 2.34 from the correlations of Lyα absorption in eBOSS DR14

Author: de Sainte Agathe, Victoria, primary, Balland, Christophe, additional, du Mas des Bourboux, Hélion, additional, Busca, Nicolás G., additional, Blomqvist, Michael, additional, Guy, Julien, additional, Rich, James, additional, Font-Ribera, Andreu, additional, Pieri, Matthew M., additional, Bautista, Julian E., additional, Dawson, Kyle, additional, Le Goff, Jean-Marc, additional, de la Macorra, Axel, additional, Palanque-Delabrouille, Nathalie, additional, Percival, Will J., additional, Pérez-Ràfols, Ignasi, additional, Schneider, Donald P., additional, Slosar, Anže, additional, and Yèche, Christophe, additional
Published: 2019
Full Text: View/download PDF

44. The Extended Baryon Oscillation Spectroscopic Survey: Measuring the Cross-correlation between the Mg ii Flux Transmission Field and Quasars and Galaxies at z = 0.59

Author: du Mas des Bourboux, Hélion, primary, Dawson, Kyle S., additional, Busca, Nicolás G., additional, Blomqvist, Michael, additional, Agathe, Victoria de Sainte, additional, Balland, Christophe, additional, Bautista, Julian E., additional, Guy, Julien, additional, Kamble, Vikrant, additional, Myers, Adam D., additional, Pérez-Ràfols, Ignasi, additional, Pieri, Matthew M., additional, Rich, James, additional, Schneider, Donald P., additional, and Slosar, Anže, additional
Published: 2019
Full Text: View/download PDF

45. The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the Extended Baryon Oscillation Spectroscopic Survey and from the Second Phase of the Apache Point Observatory Galactic Evolution Experiment

Author: Alfred P. Sloan Foundation, Department of Energy (US), University of Utah, Abolfathi, Bela, Aguado, D. S., Aguilar, Gabriela, Allende Prieto, Carlos, Almeida, Andres, Ananna, Tonima Tasnim, Anders, Friedrich, Anderson, Scott F., Andrews, Brett H., Anguiano, Borja, Aragón-Salamanca, Alfonso, Thakar, Aniruddha R., Thomas, Daniel, Mariappan, Vivek, Tissera, Patricia, Tojeiro, Rita, Dell'Agli, Flavia, Tremonti, Christy, Troup, Nicholas W., Frinchaboy, Peter, Lacerna, Ivan, Pieri, Matthew M., Barger, Kathleen A., Urry, Meg, Bershady, Matthew A., Valenzuela, O., van den Bosch, Remco, Vargas-González, Jaime, Marques-Chaves, Rui, Delubac, Timothée, Vargas Magaña, Mariana, Vazquez, Jose Alberto, Pinsonneault, Marc, Wylezalek, Dominika, Villanova, Sandro, Vogt, Nicole P., Zasowski, Gail, Wake, David, Fu, Hai, Wang, Yuting, Weaver, Benjamin Alan, Beutler, Florian, Diamond-Stanic, Aleksandar M., Fernández-Trincado, J. G., Weijmans, Anne-Marie, da Silva Ilha, Gabriele, Masseron, Thomas, Weinberg, David H., Zhang, Kai, Bizyaev, Dmitry, Zhao, Cheng, Zhao, Gong-Bo, Zheng, Zheng, Pisani, Alice, Zhou, Zhi-Min, Merrifield, Michael R., Barrera-Ballesteros, J. K., García Pérez, Ana E., Sánchez, Sebastián F., Zhu, Guangtun, Eracleous, Michael, Zinn, Joel C., Zou, Hu, Blanc, Guillermo A., Prada, Francisco, Blanton, Michael R., Blomqvist, Michael, Bolton, Adam S., Lane, Richard R., Donor, John, Boquien, Médéric, Borissova, Jura, Sanchez Almeida, Jorge, Bovy, Jo, Garcia-Dias, R., Ybarra, Jason E., McDermid, Richard M., Bradna Diaz, Christian Andres, Brandt, William Nielsen, Brinkmann, Jonathan, Lang, Dustin, Brownstein, Joel R., Downes, Juan José, Bundy, Kevin, Burgasser, Adam J., Burtin, Etienne, Prakash, Abhishek, Sánchez-Gallego, José R., Busca, Nicolás G., Cañas, Caleb I., Cano-Díaz, Mariana, McGreer, Ian D., Law, David R., García-Hernández, Domingo Aníbal, Cappellari, Michele, Whelan, David G., Carrera, Ricardo, Queiroz, Anna Bárbara de Andrade, Casey, Andrew R., Cervantes Sodi, Bernardo, Chen, Yanping, Beaton, Rachael, Cherinka, Brian, Chiappini, Cristina, Le Goff, Jean-Marc, Choi, Peter Doohyun, Chojnowski, Drew, Melendez, Matthew, Baumgarten, Falk, Finoguenov, Alexis, Chuang, Chia-Hsun, Garma Oehmichen, Luis Alberto, Chung, Haeun, Clerc, Nicolas, Cohen, Roger E., Santana Rojas, Felipe Antonio, Lee, Young-Bae, Comerford, Julia M., Comparat, Johan, de la Torre, Sylvain, Correa do Nascimento, Janaina, da Costa, Luiz, Drory, Niv, Cousinou, Marie-Claude, Meneses-Goytia, Sofia, Covey, Kevin, Crane, J.D., Armengaud, Eric, Bailey, Stephen, Cruz-Gonzalez, Irene, Kirkby, David, Santiago, Basílio Xavier, Cunha, Katia, du Mas des Bourboux, Hélion, Gelfand, Joseph, Duckworth, Christopher J., Dwelly, Tom, Dyer, Jamie, Ebelke, Garrett L., Davis Eigenbrot, Arthur, Schwope, Axel, Fleming, Scott W., Meszaros, Szabolcs, Wilcots, Eric, Eisenstein, Daniel J., Mahadevan, Suvrath, Elsworth, Yvonne P., Emsellem, Eric, Gil-Marín, Héctor, Gillespie, Bruce A., Goddard, Daniel, González Hernández, Jonay I., Raddick, M. Jordan, Li, Hongyu, Gonzalez-Perez, Violeta, Grabowski, Kathleen, Wild, Vivienne, Green, Paul J., Meza, Andres, Schimoia, Jaderson S., Grier, Catherine J., Ata, Metin, Gueguen, Alain, Raichoor, Anand, Guo, Hong, Li, Cheng, Guy, Julien, Hagen, Alex, Hall, Patrick, Williams, Rob A., Harding, Paul, Hasselquist, Sten, Hawley, Suzanne, Schlafly, Edward F., Barboza Rembold, Sandro, Minchev, Ivan, Hayes, Christian R., Damke, Guillermo J., Hearty, Fred, Aubourg, Éric, Hekker, Saskia, Hernández, Jesús, Gómez Maqueo Chew, Yilen, Hernandez Toledo, Hector, Hogg, David W., Richstein, Hannah, Holley-Bockelmann, Kelly, Holtzman, Jon A., Schlegel, David J., Masters, Karen L., Hou, Jiamin, Minniti, Dante, Hsieh, Bau-Ching, Hunt, Jason A. S., Hutchinson, Timothy A., Wilson, John, Riffel, Rogemar A., Avila-Reese, Vladimir, Hwang, Ho Seong, Jimenez Angel, Camilo Eduardo, Johnson, Jennifer A., Lian, Jianhui, Jones, Amy, Schneider, Donald P., Jönsson, Henrik, Jullo, Eric, Erfanianfar, Ghazaleh, Cirolini, Rafael Fernando, Khan, Fahim Sakil, Wood-Vasey, W. Michael, Kinemuchi, Karen, Liang, Yu, Mueller, Eva-Maria, Lima, Marcos, Lin, Lihwai, Long, Dan, Lucatello, Sara, Lundgren, Britt, Yèche, Christophe, Seo, Hee-Jong, Darling, Jeremy, Mackereth, J. Ted, Salvato, Mara, Balland, Christophe, MacLeod, Chelsea L., Müller-Sánchez, Francisco, Muna, Demitri, Muñoz, Ricardo R., Myers, Adam D., Riffel, Rogério, Nair, Preethi, Nandra, Kirpal, Davidson, James W., Jr., Ness, Melissa, Beers, Timothy C., Bird, Jonathan C., Newman, Jeffrey A., Escoffier, Stephanie, Nichol, Robert C., Bartosz, Curtis, Rix, Hans-Walter, Nidever, David L., Nitschelm, Christian, Noterdaeme, Pasquier, Dawson, Kyle, O'Connell, Julia, Oelkers, Ryan James, Oravetz, Audrey, Xiao, Ting, Serenelli, Aldo, Oravetz, Daniel, Kirkpatrick, Charles C., IV, Ortíz, Erik Aquino, Fan, Xiaohui, Osorio, Yeisson, Pace, Zach, Merloni, Andrea, Bastien, Fabienne, Padilla, Nelson, Palanque-Delabrouille, Nathalie, Palicio, Pedro Alonso, Yan, Renbin, Schiavon, Ricardo P., Pan, Hsi-An, Shen, Shiyin, Pan, Kaike, Parikh, Taniya, Pâris, Isabelle, de Icaza Lizaola, Miguel Angel C., Fernández Alvar, Emma, Park, Changbom, Peirani, Sebastien, Pellejero-Ibanez, Marcos, Robin, Annie C., Bates, Dominic, Yang, Meng, Penny, Samantha, Percival, Will J., Maia, Marcio Antonio Geimba, Pèrez-Fournon, Ismael, de la Macorra, Axel, Petitjean, Patrick, Rodríguez Torres, Sergio, Shen, Yue, Román-Zúñiga, Carlos, Bautista, Julian, Ross, Ashley J., Rossi, Graziano, Ruan, John, Zakamska, Nadia, Badenes, Carles, Ruggeri, Rossana, Westfall, Kyle B., Feuillet, Diane, Ruiz, Jose, Shetrone, Matthew, Shull, Michael, Silva Aguirre, Víctor, Simon, Joshua D., Skrutskie, Mike, Slosar, Anže, Kitaura, Francisco-Shu, Smethurst, Rebecca, Galbany, Lluís, Gaulme, Patrick, Belfiore, Francesco, Majewski, Steven R., Smith, Verne, Argudo-Fernández, Maria, Sobeck, Jennifer, Somers, Garrett, Souter, Barbara J., Knapp, Gillian R., Souto, Diogo, Spindler, Ashley, Stark, David V., De Lee, Nathan, Zamora, Olga, Stassun, Keivan, Steinmetz, Matthias, Manchado, Arturo, Stello, Dennis, Bender, Chad F., Schuster, William J., Font-Ribera, Andreu, Storchi-Bergmann, Thaisa, Streblyanska, Alina, Stringfellow, Guy S., de Sainte Agathe, Victoria, Suárez, Genaro, Zarrouk, Pauline, Sun, Jing, Szigeti, Laszlo, Taghizadeh-Popp, Manuchehr, Kneib, Jean-Paul, Maraston, Claudia, Talbot, Michael S., Tang, Baitian, Tao, Charling, Freischlad, Gordon, Deconto Machado, Alice, Bernardi, Mariangela, Tayar, Jamie, Sánchez, Ariel G., Tembe, Mita, Kollmeier, Juna A., Teske, Johanna, Alfred P. Sloan Foundation, Department of Energy (US), University of Utah, Abolfathi, Bela, Aguado, D. S., Aguilar, Gabriela, Allende Prieto, Carlos, Almeida, Andres, Ananna, Tonima Tasnim, Anders, Friedrich, Anderson, Scott F., Andrews, Brett H., Anguiano, Borja, Aragón-Salamanca, Alfonso, Thakar, Aniruddha R., Thomas, Daniel, Mariappan, Vivek, Tissera, Patricia, Tojeiro, Rita, Dell'Agli, Flavia, Tremonti, Christy, Troup, Nicholas W., Frinchaboy, Peter, Lacerna, Ivan, Pieri, Matthew M., Barger, Kathleen A., Urry, Meg, Bershady, Matthew A., Valenzuela, O., van den Bosch, Remco, Vargas-González, Jaime, Marques-Chaves, Rui, Delubac, Timothée, Vargas Magaña, Mariana, Vazquez, Jose Alberto, Pinsonneault, Marc, Wylezalek, Dominika, Villanova, Sandro, Vogt, Nicole P., Zasowski, Gail, Wake, David, Fu, Hai, Wang, Yuting, Weaver, Benjamin Alan, Beutler, Florian, Diamond-Stanic, Aleksandar M., Fernández-Trincado, J. G., Weijmans, Anne-Marie, da Silva Ilha, Gabriele, Masseron, Thomas, Weinberg, David H., Zhang, Kai, Bizyaev, Dmitry, Zhao, Cheng, Zhao, Gong-Bo, Zheng, Zheng, Pisani, Alice, Zhou, Zhi-Min, Merrifield, Michael R., Barrera-Ballesteros, J. K., García Pérez, Ana E., Sánchez, Sebastián F., Zhu, Guangtun, Eracleous, Michael, Zinn, Joel C., Zou, Hu, Blanc, Guillermo A., Prada, Francisco, Blanton, Michael R., Blomqvist, Michael, Bolton, Adam S., Lane, Richard R., Donor, John, Boquien, Médéric, Borissova, Jura, Sanchez Almeida, Jorge, Bovy, Jo, Garcia-Dias, R., Ybarra, Jason E., McDermid, Richard M., Bradna Diaz, Christian Andres, Brandt, William Nielsen, Brinkmann, Jonathan, Lang, Dustin, Brownstein, Joel R., Downes, Juan José, Bundy, Kevin, Burgasser, Adam J., Burtin, Etienne, Prakash, Abhishek, Sánchez-Gallego, José R., Busca, Nicolás G., Cañas, Caleb I., Cano-Díaz, Mariana, McGreer, Ian D., Law, David R., García-Hernández, Domingo Aníbal, Cappellari, Michele, Whelan, David G., Carrera, Ricardo, Queiroz, Anna Bárbara de Andrade, Casey, Andrew R., Cervantes Sodi, Bernardo, Chen, Yanping, Beaton, Rachael, Cherinka, Brian, Chiappini, Cristina, Le Goff, Jean-Marc, Choi, Peter Doohyun, Chojnowski, Drew, Melendez, Matthew, Baumgarten, Falk, Finoguenov, Alexis, Chuang, Chia-Hsun, Garma Oehmichen, Luis Alberto, Chung, Haeun, Clerc, Nicolas, Cohen, Roger E., Santana Rojas, Felipe Antonio, Lee, Young-Bae, Comerford, Julia M., Comparat, Johan, de la Torre, Sylvain, Correa do Nascimento, Janaina, da Costa, Luiz, Drory, Niv, Cousinou, Marie-Claude, Meneses-Goytia, Sofia, Covey, Kevin, Crane, J.D., Armengaud, Eric, Bailey, Stephen, Cruz-Gonzalez, Irene, Kirkby, David, Santiago, Basílio Xavier, Cunha, Katia, du Mas des Bourboux, Hélion, Gelfand, Joseph, Duckworth, Christopher J., Dwelly, Tom, Dyer, Jamie, Ebelke, Garrett L., Davis Eigenbrot, Arthur, Schwope, Axel, Fleming, Scott W., Meszaros, Szabolcs, Wilcots, Eric, Eisenstein, Daniel J., Mahadevan, Suvrath, Elsworth, Yvonne P., Emsellem, Eric, Gil-Marín, Héctor, Gillespie, Bruce A., Goddard, Daniel, González Hernández, Jonay I., Raddick, M. Jordan, Li, Hongyu, Gonzalez-Perez, Violeta, Grabowski, Kathleen, Wild, Vivienne, Green, Paul J., Meza, Andres, Schimoia, Jaderson S., Grier, Catherine J., Ata, Metin, Gueguen, Alain, Raichoor, Anand, Guo, Hong, Li, Cheng, Guy, Julien, Hagen, Alex, Hall, Patrick, Williams, Rob A., Harding, Paul, Hasselquist, Sten, Hawley, Suzanne, Schlafly, Edward F., Barboza Rembold, Sandro, Minchev, Ivan, Hayes, Christian R., Damke, Guillermo J., Hearty, Fred, Aubourg, Éric, Hekker, Saskia, Hernández, Jesús, Gómez Maqueo Chew, Yilen, Hernandez Toledo, Hector, Hogg, David W., Richstein, Hannah, Holley-Bockelmann, Kelly, Holtzman, Jon A., Schlegel, David J., Masters, Karen L., Hou, Jiamin, Minniti, Dante, Hsieh, Bau-Ching, Hunt, Jason A. S., Hutchinson, Timothy A., Wilson, John, Riffel, Rogemar A., Avila-Reese, Vladimir, Hwang, Ho Seong, Jimenez Angel, Camilo Eduardo, Johnson, Jennifer A., Lian, Jianhui, Jones, Amy, Schneider, Donald P., Jönsson, Henrik, Jullo, Eric, Erfanianfar, Ghazaleh, Cirolini, Rafael Fernando, Khan, Fahim Sakil, Wood-Vasey, W. Michael, Kinemuchi, Karen, Liang, Yu, Mueller, Eva-Maria, Lima, Marcos, Lin, Lihwai, Long, Dan, Lucatello, Sara, Lundgren, Britt, Yèche, Christophe, Seo, Hee-Jong, Darling, Jeremy, Mackereth, J. Ted, Salvato, Mara, Balland, Christophe, MacLeod, Chelsea L., Müller-Sánchez, Francisco, Muna, Demitri, Muñoz, Ricardo R., Myers, Adam D., Riffel, Rogério, Nair, Preethi, Nandra, Kirpal, Davidson, James W., Jr., Ness, Melissa, Beers, Timothy C., Bird, Jonathan C., Newman, Jeffrey A., Escoffier, Stephanie, Nichol, Robert C., Bartosz, Curtis, Rix, Hans-Walter, Nidever, David L., Nitschelm, Christian, Noterdaeme, Pasquier, Dawson, Kyle, O'Connell, Julia, Oelkers, Ryan James, Oravetz, Audrey, Xiao, Ting, Serenelli, Aldo, Oravetz, Daniel, Kirkpatrick, Charles C., IV, Ortíz, Erik Aquino, Fan, Xiaohui, Osorio, Yeisson, Pace, Zach, Merloni, Andrea, Bastien, Fabienne, Padilla, Nelson, Palanque-Delabrouille, Nathalie, Palicio, Pedro Alonso, Yan, Renbin, Schiavon, Ricardo P., Pan, Hsi-An, Shen, Shiyin, Pan, Kaike, Parikh, Taniya, Pâris, Isabelle, de Icaza Lizaola, Miguel Angel C., Fernández Alvar, Emma, Park, Changbom, Peirani, Sebastien, Pellejero-Ibanez, Marcos, Robin, Annie C., Bates, Dominic, Yang, Meng, Penny, Samantha, Percival, Will J., Maia, Marcio Antonio Geimba, Pèrez-Fournon, Ismael, de la Macorra, Axel, Petitjean, Patrick, Rodríguez Torres, Sergio, Shen, Yue, Román-Zúñiga, Carlos, Bautista, Julian, Ross, Ashley J., Rossi, Graziano, Ruan, John, Zakamska, Nadia, Badenes, Carles, Ruggeri, Rossana, Westfall, Kyle B., Feuillet, Diane, Ruiz, Jose, Shetrone, Matthew, Shull, Michael, Silva Aguirre, Víctor, Simon, Joshua D., Skrutskie, Mike, Slosar, Anže, Kitaura, Francisco-Shu, Smethurst, Rebecca, Galbany, Lluís, Gaulme, Patrick, Belfiore, Francesco, Majewski, Steven R., Smith, Verne, Argudo-Fernández, Maria, Sobeck, Jennifer, Somers, Garrett, Souter, Barbara J., Knapp, Gillian R., Souto, Diogo, Spindler, Ashley, Stark, David V., De Lee, Nathan, Zamora, Olga, Stassun, Keivan, Steinmetz, Matthias, Manchado, Arturo, Stello, Dennis, Bender, Chad F., Schuster, William J., Font-Ribera, Andreu, Storchi-Bergmann, Thaisa, Streblyanska, Alina, Stringfellow, Guy S., de Sainte Agathe, Victoria, Suárez, Genaro, Zarrouk, Pauline, Sun, Jing, Szigeti, Laszlo, Taghizadeh-Popp, Manuchehr, Kneib, Jean-Paul, Maraston, Claudia, Talbot, Michael S., Tang, Baitian, Tao, Charling, Freischlad, Gordon, Deconto Machado, Alice, Bernardi, Mariangela, Tayar, Jamie, Sánchez, Ariel G., Tembe, Mita, Kollmeier, Juna A., and Teske, Johanna
Abstract: The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since 2014 July. This paper describes the second data release from this phase, and the 14th from SDSS overall (making this Data Release Fourteen or DR14). This release makes the data taken by SDSS-IV in its first two years of operation (2014-2016 July) public. Like all previous SDSS releases, DR14 is cumulative, including the most recent reductions and calibrations of all data taken by SDSS since the first phase began operations in 2000. New in DR14 is the first public release of data from the extended Baryon Oscillation Spectroscopic Survey; the first data from the second phase of the Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE-2), including stellar parameter estimates from an innovative data-driven machine-learning algorithm known as ¿The Cannon¿ and almost twice as many data cubes from the Mapping Nearby Galaxies at APO (MaNGA) survey as were in the previous release (N = 2812 in total). This paper describes the location and format of the publicly available data from the SDSS-IV surveys. We provide references to the important technical papers describing how these data have been taken (both targeting and observation details) and processed for scientific use. The SDSS web site (www.sdss.org) has been updated for this release and provides links to data downloads, as well as tutorials and examples of data use. SDSS-IV is planning to continue to collect astronomical data until 2020 and will be followed by SDSS-V. © 2018. The American Astronomical Society..
Published: 2018

46. Baryon acoustic oscillations from the complete SDSS-III Lyα-quasar cross-correlation function at z = 2.4

Author: du Mas des Bourboux, Hélion, primary, Le Goff, Jean-Marc, additional, Blomqvist, Michael, additional, Busca, Nicolás G., additional, Guy, Julien, additional, Rich, James, additional, Yèche, Christophe, additional, Bautista, Julian E., additional, Burtin, Étienne, additional, Dawson, Kyle S., additional, Eisenstein, Daniel J., additional, Font-Ribera, Andreu, additional, Kirkby, David, additional, Miralda-Escudé, Jordi, additional, Noterdaeme, Pasquier, additional, Palanque-Delabrouille, Nathalie, additional, Pâris, Isabelle, additional, Petitjean, Patrick, additional, Pérez-Ràfols, Ignasi, additional, Pieri, Matthew M., additional, Ross, Nicholas P., additional, Schlegel, David J., additional, Schneider, Donald P., additional, Slosar, Anže, additional, Weinberg, David H., additional, and Zarrouk, Pauline, additional
Published: 2017
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47. The DESI Experiment Part I: Science,Targeting, and Survey Design

Author: Aghamousa, Amir, Aguilar, Jessica, Ahlen, Steve, Alam, Shadab, Allen, Lori E., Prieto, Carlos Allende, Annis, James, Bailey, Stephen, Balland, Christophe, Ballester, Otger, Baltay, Charles, Beaufore, Lucas, Bebek, Chris, Beers, Timothy C., Bell, Eric F., Bernal, José Luis, Besuner, Robert, Beutler, Florian, Blake, Chris, Bleuler, Hannes, Blomqvist, Michael, Blum, Robert, Bolton, Adam S., Briceno, Cesar, Brooks, David, Brownstein, Joel R., Buckley-Geer, Elizabeth, Burden, Angela, Burtin, Etienne, Busca, Nicolás G., Cahn, Robert N., Cai, Yan-Chuan, Cardiel-Sas, Laia, Carlberg, Raymond G., Carton, Pierre-Henri, Casas, Ricard, Castander, Francisco J., Cervantes-Cota, Jorge L., Claybaugh, Todd M., Close, Madeline, Coker, Carl T., Cole, Shaun, Comparat, Johan, Cooper, Andrew P., Cousinou, M. -C., Crocce, Martin, Cuby, Jean-Gabriel, Cunningham, Daniel P., Davis, Tamara M., Dawson, Kyle S., de La Macorra, Axel, de Vicente, Juan, Delubac, Timothée, Derwent, Mark, Dey, Arjun, Dhungana, Govinda, Ding, Zhejie, Doel, Peter, Duan, Yutong T., Ealet, Anne, Edelstein, Jerry, Eftekharzadeh, Sarah, Eisenstein, Daniel J., Elliott, Ann, Escoffier, Stephanie, Evatt, Matthew, Fagrelius, Parker, Fan, Xiaohui, Fanning, Kevin, Farahi, Arya, Farihi, Jay, Favole, Ginevra, Feng, Yu, Fernandez, Enrique, Findlay, Joseph R., Finkbeiner, Douglas P., Fitzpatrick, Michael J., Flaugher, Brenna, Flender, Samuel, Font-Ribera, Andreu, Forero-Romero, Jaime E., Fosalba, Pablo, Frenk, Carlos S., Fumagalli, Michele, Gaensicke, Boris T., Gallo, Giuseppe, Garcia-Bellido, Juan, Gaztanaga, Enrique, Fusillo, Nicola Pietro Gentile, Gerard, Terry, Gershkovich, Irena, Giannantonio, Tommaso, Gillet, Denis, Gonzalez-De-Rivera, Guillermo, Gonzalez-Perez, Violeta, Gott, Shelby, Graur, Or, Gutierrez, Gaston, Guy, Julien, Habib, Salman, Heetderks, Henry, Heetderks, Ian, Heitmann, Katrin, Hellwing, Wojciech A., Herrera, David A., Ho, Shirley, Holland, Stephen, Honscheid, Klaus, Huff, Eric, Hutchinson, Timothy A., Huterer, Dragan, Hwang, Ho Seong, Laguna, Joseph Maria Illa, Ishikawa, Yuzo, Jacobs, Dianna, Jeffrey, Niall, Jelinsky, Patrick, Jennings, Elise, Jiang, Linhua, Jimenez, Jorge, Johnson, Jennifer, Joyce, Richard, Jullo, Eric, Juneau, Stéphanie, Kama, Sami, Karcher, Armin, Karkar, Sonia, Kehoe, Robert, Kennamer, Noble, Kent, Stephen, Kilbinger, Martin, Kim, Alex G., Kirkby, David, Kisner, Theodore, Kitanidis, Ellie, Kneib, Jean-Paul, Koposov, Sergey, Kovacs, Eve, Koyama, Kazuya, Kremin, Anthony, Kron, Richard, Kronig, Luzius, Kueter-Young, Andrea, Lacey, Cedric G., Lafever, Robin, Lahav, Ofer, Lambert, Andrew, Lampton, Michael, Landriau, Martin, Lang, Dustin, Lauer, Tod R., Goff, Jean-Marc Le, Guillou, Laurent Le, van Suu, Auguste Le, Lee, Jae Hyeon, Lee, Su-Jeong, Leitner, Daniela, Lesser, Michael, Levi, Michael E., L'Huillier, Benjamin, Li, Baojiu, Liang, Ming, Lin, Huan, Linder, Eric, Loebman, Sarah R., Lukić, Zarija, Ma, Jun, Maccrann, Niall, Magneville, Christophe, Makarem, Laleh, Manera, Marc, Manser, Christopher J., Marshall, Robert, Martini, Paul, Massey, Richard, Matheson, Thomas, Mccauley, Jeremy, Mcdonald, Patrick, Mcgreer, Ian D., Meisner, Aaron, Metcalfe, Nigel, Miller, Timothy N., Miquel, Ramon, Moustakas, John, Myers, Adam, Naik, Milind, Newman, Jeffrey A., Nichol, Robert C., Nicola, Andrina, da Costa, Luiz Nicolati, Nie, Jundan, Niz, Gustavo, Norberg, Peder, Nord, Brian, Norman, Dara, Nugent, Peter, O'Brien, Thomas, Oh, Minji, Olsen, Knut A. G., Padilla, Cristobal, Padmanabhan, Hamsa, Padmanabhan, Nikhil, Palanque-Delabrouille, Nathalie, Palmese, Antonella, Pappalardo, Daniel, Paris, Isabelle, Park, Changbom, Patej, Anna, Peacock, John A., Peiris, Hiranya V., Peng, Xiyan, Percival, Will J., Perruchot, Sandrine, Pieri, Matthew M., Pogge, Richard, Pollack, Jennifer E., Poppett, Claire, Prada, Francisco, Prakash, Abhishek, Probst, Ronald G., Rabinowitz, David, Raichoor, Anand, Ree, Chang Hee, Refregier, Alexandre, Régal, Xavier, Reid, Beth, Reil, Kevin, Rezaie, Mehdi, Rockosi, Constance M., Roe, Natalie, Ronayette, Samuel, Roodman, Aaron, Ross, Ashley J., Ross, Nicholas P., Rossi, Graziano, Rozo, Eduardo, Ruhlmann-Kleider, Vanina, Rykoff, Eli S., Sabiu, Cristiano, Samushia, Lado, Sanchez, Eusebio, Sanchez, Javier, Schlegel, David J., Schneider, Michael, Schubnell, Michael, Secroun, Aurélia, Seljak, Uros, Seo, Hee-Jong, Serrano, Santiago, Shafieloo, Arman, Shan, Huanyuan, Sharples, Ray, Sholl, Michael J., Shourt, William V., Silber, Joseph H., Silva, David R., Sirk, Martin M., Slosar, Anze, Smith, Alex, Smoot, George F., Som, Debopam, Song, Yong-Seon, Sprayberry, David, Staten, Ryan, Stefanik, Andy, Tarlè, Gregory, Tie, Suk Sien, Tinker, Jeremy L., Tojeiro, Rita, Valdes, Francisco, Valenzuela, Octavio, Valluri, Monica, Vargas-Magaña, Mariana, Verde, Licia, Walker, Alistair R., Wang, Jiali, Wang, Yuting, Weaver, Benjamin A., Weaverdyck, Curtis, Wechsler, Risa H., Weinberg, David H., White, Martin, Yang, Qian, Yeche, Christophe, Zhang, Tianmeng, Zhao, Gong-Bo, Zheng, Yi, Zhou, Xu, Zhou, Zhimin, Zhu, Yaling, Zou, Hu, Zu, Ying, Korea Astronomy and Space Science Institute (KASI), Okayama University, University of California [Berkeley], University of California, National Optical Astronomy Observatory (NOAO), Instituto de Astrofisica de Canarias (IAC), Fermi National Accelerator Laboratory (Fermilab), Lawrence Berkeley National Laboratory [Berkeley] (LBNL), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut de Física d’Altes Energies [Barcelone] (IFAE), Universitat Autònoma de Barcelona (UAB), Yale University [New Haven], Ohio State University [Columbus] (OSU), The University of Notre Dame [Sydney], Department of Astronomy, University of Michigan, University of Michigan [Ann Arbor], University of Michigan System-University of Michigan System, Institut de Ciencies del Cosmos (ICCUB), Universitat de Barcelona (UB), Space Sciences Laboratory [Berkeley] (SSL), University of California-University of California, University of Portsmouth, University of British Columbia (UBC), Ecole Polytechnique Fédérale de Lausanne (EPFL), Laboratoire d'Astrophysique de Marseille (LAM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Cerro Tololo Inter-American Observatory, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, APC - Cosmologie, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institute for Astronomy [Edinburgh] (IfA), University of Edinburgh, Department of Astronomy & Astrophysics [University of Toronto], University of Toronto, Institut de Ciencies de l'Espai [Barcelona] (ICE-CSIC), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Carreterra Mexico-Toluca, Department of Physics [Durham University], Durham University, Department of Astronomy, The Ohio State University, Departamento de FisicaTeorica e IFT-UAM/CSIC, Universidad Autonoma de Madrid (UAM), Institute for Computational Cosmology (ICC), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Universidad Nacional Autónoma de México (UNAM), Department of Applied Physics, Departamento de Fisica Aplicada [Granada], Universidad de Granada (UGR)-Universidad de Granada (UGR), University College of London [London] (UCL), University of Wyoming (UW), Harvard-Smithsonian Center for Astrophysics (CfA), Harvard University [Cambridge]-Smithsonian Institution, Arizona State University [Tempe] (ASU), Department of Information Engineering, Zhejiang University of Technology, Zhejiang University of Technology, Institute for Astronomy [Honolulu], University of Hawai‘i [Mānoa] (UHM), Università degli Studi di Milano-Bicocca [Milano] (UNIMIB), Departamento de Fisica Teorica, Institute of Cosmology & Gravitation [Portsmouth], Carnegie Mellon University [Pittsburgh] (CMU), NASA Goddard Space Flight Center (GSFC), Korea Institute for Advanced Study (KIAS), Department of Physics and Astronomy [Irvine], University of California [Irvine] (UCI), Department of Physics, University of California, University of California [Los Angeles] (UCLA), Institute of Astronomy [Cambridge], University of Cambridge [UK] (CAM), Institute of Cosmology & Gravitation, Dennis Sciama Building, University of Portsmouth, Observatoire de Haute-Provence (OHP), Institut Pythéas (OSU PYTHEAS), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Center for Cosmology & AstroParticle Physics, California Institute of Technology (CALTECH), Department of Physics and Astronomy [Pittsburgh], University of Pittsburgh (PITT), Pennsylvania Commonwealth System of Higher Education (PCSHE)-Pennsylvania Commonwealth System of Higher Education (PCSHE), Institute for Astronomy [Zürich], Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), School of Physics and Astronomy [Nottingham], University of Nottingham, UK (UON), Department of Physics [Durham], University of New Hampshire (UNH), University of Waterloo [Waterloo], Universität Zürich [Zürich] = University of Zurich (UZH), Department of Astronomy and Space Science [Sejong University], Sejong University, Department of Physics [Oxford], University of Oxford [Oxford], Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), Department of Physics [Ann Arbor], University of St Andrews [Scotland], University of Science and Technology of China [Hefei] (USTC), Department of Computer Science and Engineering [Minneapolis], University of Minnesota [Twin Cities] (UMN), University of Minnesota System-University of Minnesota System, Karlsruhe Institute of Technology (KIT), National University of Defense Technology [China], DESI Collaboration, University of California [Berkeley] (UC Berkeley), University of California (UC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), University of California (UC)-University of California (UC), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Universidad Autónoma de Madrid (UAM), Universidad Nacional Autónoma de México = National Autonomous University of Mexico (UNAM), Universidad de Granada = University of Granada (UGR)-Universidad de Granada = University of Granada (UGR), Harvard University-Smithsonian Institution, Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB), University of California [Irvine] (UC Irvine), University of Oxford, and Escoffier, Stephanie
Subjects: [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Astrophysics::Cosmology and Extragalactic Astrophysics, [PHYS.ASTR.IM] Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Astrophysics::Galaxy Astrophysics
Abstract: DESI (Dark Energy Spectroscopic Instrument) is a Stage IV ground-based dark energy experiment that will study baryon acoustic oscillations (BAO) and the growth of structure through redshift-space distortions with a wide-area galaxy and quasar redshift survey. To trace the underlying dark matter distribution, spectroscopic targets will be selected in four classes from imaging data. We will measure luminous red galaxies up to $z=1.0$. To probe the Universe out to even higher redshift, DESI will target bright [O II] emission line galaxies up to $z=1.7$. Quasars will be targeted both as direct tracers of the underlying dark matter distribution and, at higher redshifts ($ 2.1 < z < 3.5$), for the Ly-$\alpha$ forest absorption features in their spectra, which will be used to trace the distribution of neutral hydrogen. When moonlight prevents efficient observations of the faint targets of the baseline survey, DESI will conduct a magnitude-limited Bright Galaxy Survey comprising approximately 10 million galaxies with a median $z\approx 0.2$. In total, more than 30 million galaxy and quasar redshifts will be obtained to measure the BAO feature and determine the matter power spectrum, including redshift space distortions.
Published: 2016

48. Measurement of baryon acoustic oscillation correlations atz = 2.3 with SDSS DR12 Lyα-Forests

Author: Bautista, Julian E., primary, Busca, Nicolás G., additional, Guy, Julien, additional, Rich, James, additional, Blomqvist, Michael, additional, du Mas des Bourboux, Hélion, additional, Pieri, Matthew M., additional, Font-Ribera, Andreu, additional, Bailey, Stephen, additional, Delubac, Timothée, additional, Kirkby, David, additional, Le Goff, Jean-Marc, additional, Margala, Daniel, additional, Slosar, Anže, additional, Vazquez, Jose Alberto, additional, Brownstein, Joel R., additional, Dawson, Kyle S., additional, Eisenstein, Daniel J., additional, Miralda-Escudé, Jordi, additional, Noterdaeme, Pasquier, additional, Palanque-Delabrouille, Nathalie, additional, Pâris, Isabelle, additional, Petitjean, Patrick, additional, Ross, Nicholas P., additional, Schneider, Donald P., additional, Weinberg, David H., additional, and Yèche, Christophe, additional
Published: 2017
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49. Broadband distortion modeling in Lyman-α forest BAO fitting

Author: Blomqvist, Michael, primary, Kirkby, David, additional, Bautista, Julian E., additional, Arinyo-i-Prats, Andreu, additional, Busca, Nicolás G., additional, Miralda-Escudé, Jordi, additional, Slosar, Anže, additional, Font-Ribera, Andreu, additional, Margala, Daniel, additional, Schneider, Donald P., additional, and Vazquez, Jose A., additional
Published: 2015
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50. THE ELEVENTH AND TWELFTH DATA RELEASES OF THE SLOAN DIGITAL SKY SURVEY: FINAL DATA FROM SDSS-III

Author: Alam, Shadab, primary, Albareti, Franco D., additional, Prieto, Carlos Allende, additional, Anders, F., additional, Anderson, Scott F., additional, Anderton, Timothy, additional, Andrews, Brett H., additional, Armengaud, Eric, additional, Aubourg, Éric, additional, Bailey, Stephen, additional, Basu, Sarbani, additional, Bautista, Julian E., additional, Beaton, Rachael L., additional, Beers, Timothy C., additional, Bender, Chad F., additional, Berlind, Andreas A., additional, Beutler, Florian, additional, Bhardwaj, Vaishali, additional, Bird, Jonathan C., additional, Bizyaev, Dmitry, additional, Blake, Cullen H., additional, Blanton, Michael R., additional, Blomqvist, Michael, additional, Bochanski, John J., additional, Bolton, Adam S., additional, Bovy, Jo, additional, Bradley, A. Shelden, additional, Brandt, W. N., additional, Brauer, D. E., additional, Brinkmann, J., additional, Brown, Peter J., additional, Brownstein, Joel R., additional, Burden, Angela, additional, Burtin, Etienne, additional, Busca, Nicolás G., additional, Cai, Zheng, additional, Capozzi, Diego, additional, Rosell, Aurelio Carnero, additional, Carr, Michael A., additional, Carrera, Ricardo, additional, Chambers, K. C., additional, Chaplin, William James, additional, Chen, Yen-Chi, additional, Chiappini, Cristina, additional, Chojnowski, S. Drew, additional, Chuang, Chia-Hsun, additional, Clerc, Nicolas, additional, Comparat, Johan, additional, Covey, Kevin, additional, Croft, Rupert A. C., additional, Cuesta, Antonio J., additional, Cunha, Katia, additional, Costa, Luiz N. da, additional, Rio, Nicola Da, additional, Davenport, James R. A., additional, Dawson, Kyle S., additional, Lee, Nathan De, additional, Delubac, Timothée, additional, Deshpande, Rohit, additional, Dhital, Saurav, additional, Dutra-Ferreira, Letícia, additional, Dwelly, Tom, additional, Ealet, Anne, additional, Ebelke, Garrett L., additional, Edmondson, Edward M., additional, Eisenstein, Daniel J., additional, Ellsworth, Tristan, additional, Elsworth, Yvonne, additional, Epstein, Courtney R., additional, Eracleous, Michael, additional, Escoffier, Stephanie, additional, Esposito, Massimiliano, additional, Evans, Michael L., additional, Fan, Xiaohui, additional, Fernández-Alvar, Emma, additional, Feuillet, Diane, additional, Ak, Nurten Filiz, additional, Finley, Hayley, additional, Finoguenov, Alexis, additional, Flaherty, Kevin, additional, Fleming, Scott W., additional, Font-Ribera, Andreu, additional, Foster, Jonathan, additional, Frinchaboy, Peter M., additional, Galbraith-Frew, J. G., additional, García, Rafael A., additional, García-Hernández, D. A., additional, Pérez, Ana E. García, additional, Gaulme, Patrick, additional, Ge, Jian, additional, Génova-Santos, R., additional, Georgakakis, A., additional, Ghezzi, Luan, additional, Gillespie, Bruce A., additional, Girardi, Léo, additional, Goddard, Daniel, additional, Gontcho, Satya Gontcho A, additional, Hernández, Jonay I. González, additional, Grebel, Eva K., additional, Green, Paul J., additional, Grieb, Jan Niklas, additional, Grieves, Nolan, additional, Gunn, James E., additional, Guo, Hong, additional, Harding, Paul, additional, Hasselquist, Sten, additional, Hawley, Suzanne L., additional, Hayden, Michael, additional, Hearty, Fred R., additional, Hekker, Saskia, additional, Ho, Shirley, additional, Hogg, David W., additional, Holley-Bockelmann, Kelly, additional, Holtzman, Jon A., additional, Honscheid, Klaus, additional, Huber, Daniel, additional, Huehnerhoff, Joseph, additional, Ivans, Inese I., additional, Jiang, Linhua, additional, Johnson, Jennifer A., additional, Kinemuchi, Karen, additional, Kirkby, David, additional, Kitaura, Francisco, additional, Klaene, Mark A., additional, Knapp, Gillian R., additional, Kneib, Jean-Paul, additional, Koenig, Xavier P., additional, Lam, Charles R., additional, Lan, Ting-Wen, additional, Lang, Dustin, additional, Laurent, Pierre, additional, Goff, Jean-Marc Le, additional, Leauthaud, Alexie, additional, Lee, Khee-Gan, additional, Lee, Young Sun, additional, Licquia, Timothy C., additional, Liu, Jian, additional, Long, Daniel C., additional, López-Corredoira, Martín, additional, Lorenzo-Oliveira, Diego, additional, Lucatello, Sara, additional, Lundgren, Britt, additional, Lupton, Robert H., additional, III, Claude E. Mack, additional, Mahadevan, Suvrath, additional, Maia, Marcio A. G., additional, Majewski, Steven R., additional, Malanushenko, Elena, additional, Malanushenko, Viktor, additional, Manchado, A., additional, Manera, Marc, additional, Mao, Qingqing, additional, Maraston, Claudia, additional, Marchwinski, Robert C., additional, Margala, Daniel, additional, Martell, Sarah L., additional, Martig, Marie, additional, Masters, Karen L., additional, Mathur, Savita, additional, McBride, Cameron K., additional, McGehee, Peregrine M., additional, McGreer, Ian D., additional, McMahon, Richard G., additional, Ménard, Brice, additional, Menzel, Marie-Luise, additional, Merloni, Andrea, additional, Mészáros, Szabolcs, additional, Miller, Adam A., additional, Miralda-Escudé, Jordi, additional, Miyatake, Hironao, additional, Montero-Dorta, Antonio D., additional, More, Surhud, additional, Morganson, Eric, additional, Morice-Atkinson, Xan, additional, Morrison, Heather L., additional, Mosser, Benôit, additional, Muna, Demitri, additional, Myers, Adam D., additional, Nandra, Kirpal, additional, Newman, Jeffrey A., additional, Neyrinck, Mark, additional, Nguyen, Duy Cuong, additional, Nichol, Robert C., additional, Nidever, David L., additional, Noterdaeme, Pasquier, additional, Nuza, Sebastián E., additional, O’Connell, Julia E., additional, O’Connell, Robert W., additional, O’Connell, Ross, additional, Ogando, Ricardo L. C., additional, Olmstead, Matthew D., additional, Oravetz, Audrey E., additional, Oravetz, Daniel J., additional, Osumi, Keisuke, additional, Owen, Russell, additional, Padgett, Deborah L., additional, Padmanabhan, Nikhil, additional, Paegert, Martin, additional, Palanque-Delabrouille, Nathalie, additional, Pan, Kaike, additional, Parejko, John K., additional, Pâris, Isabelle, additional, Park, Changbom, additional, Pattarakijwanich, Petchara, additional, Pellejero-Ibanez, M., additional, Pepper, Joshua, additional, Percival, Will J., additional, Pérez-Fournon, Ismael, additional, Pe´rez-Ra`fols, Ignasi, additional, Petitjean, Patrick, additional, Pieri, Matthew M., additional, Pinsonneault, Marc H., additional, Mello, Gustavo F. Porto de, additional, Prada, Francisco, additional, Prakash, Abhishek, additional, Price-Whelan, Adrian M., additional, Protopapas, Pavlos, additional, Raddick, M. Jordan, additional, Rahman, Mubdi, additional, Reid, Beth A., additional, Rich, James, additional, Rix, Hans-Walter, additional, Robin, Annie C., additional, Rockosi, Constance M., additional, Rodrigues, Thaíse S., additional, Rodríguez-Torres, Sergio, additional, Roe, Natalie A., additional, Ross, Ashley J., additional, Ross, Nicholas P., additional, Rossi, Graziano, additional, Ruan, John J., additional, Rubiño-Martín, J. A., additional, Rykoff, Eli S., additional, Salazar-Albornoz, Salvador, additional, Salvato, Mara, additional, Samushia, Lado, additional, Sánchez, Ariel G., additional, Santiago, Basílio, additional, Sayres, Conor, additional, Schiavon, Ricardo P., additional, Schlegel, David J., additional, Schmidt, Sarah J., additional, Schneider, Donald P., additional, Schultheis, Mathias, additional, Schwope, Axel D., additional, Scóccola, C. G., additional, Scott, Caroline, additional, Sellgren, Kris, additional, Seo, Hee-Jong, additional, Serenelli, Aldo, additional, Shane, Neville, additional, Shen, Yue, additional, Shetrone, Matthew, additional, Shu, Yiping, additional, Aguirre, V. Silva, additional, Sivarani, Thirupathi, additional, Skrutskie, M. F., additional, Slosar, Anže, additional, Smith, Verne V., additional, Sobreira, Flávia, additional, Souto, Diogo, additional, Stassun, Keivan G., additional, Steinmetz, Matthias, additional, Stello, Dennis, additional, Strauss, Michael A., additional, Streblyanska, Alina, additional, Suzuki, Nao, additional, Swanson, Molly E. C., additional, Tan, Jonathan C., additional, Tayar, Jamie, additional, Terrien, Ryan C., additional, Thakar, Aniruddha R., additional, Thomas, Daniel, additional, Thomas, Neil, additional, Thompson, Benjamin A., additional, Tinker, Jeremy L., additional, Tojeiro, Rita, additional, Troup, Nicholas W., additional, Vargas-Magaña, Mariana, additional, Vazquez, Jose A., additional, Verde, Licia, additional, Viel, Matteo, additional, Vogt, Nicole P., additional, Wake, David A., additional, Wang, Ji, additional, Weaver, Benjamin A., additional, Weinberg, David H., additional, Weiner, Benjamin J., additional, White, Martin, additional, Wilson, John C., additional, Wisniewski, John P., additional, Wood-Vasey, W. M., additional, Ye`che, Christophe, additional, York, Donald G., additional, Zakamska, Nadia L., additional, Zamora, O., additional, Zasowski, Gail, additional, Zehavi, Idit, additional, Zhao, Gong-Bo, additional, Zheng, Zheng, additional, Zhou (周旭), Xu, additional, Zhou (周志民), Zhimin, additional, Zou (邹虎), Hu, additional, and Zhu, Guangtun, additional
Published: 2015
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