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16 results on '"Carrasco Kind, Matías"'

1. Spectroscopic needs for imaging dark energy experiments

Author

Newman, Jeffrey A., Abate, Alexandra, Abdalla, Filipe B., Allam, Sahar, Allen, Steven W., Ansari, Réza, Bailey, Stephen, Barkhouse, Wayne A., Beers, Timothy C., Blanton, Michael R., Brodwin, Mark, Brownstein, Joel R., Brunner, Robert J., Carrasco Kind, Matias, Cervantes-Cota, Jorge L., Cheu, Elliott, Chisari, Nora Elisa, Colless, Matthew, Comparat, Johan, Coupon, Jean, Cunha, Carlos E., de la Macorra, Axel, Dell’Antonio, Ian P., Frye, Brenda L., Gawiser, Eric J., Gehrels, Neil, Grady, Kevin, Hagen, Alex, Hall, Patrick B., Hearin, Andew P., Hildebrandt, Hendrik, Hirata, Christopher M., Ho, Shirley, Honscheid, Klaus, Huterer, Dragan, Ivezić, Željko, Kneib, Jean-Paul, Kruk, Jeffrey W., Lahav, Ofer, Mandelbaum, Rachel, Marshall, Jennifer L., Matthews, Daniel J., Ménard, Brice, Miquel, Ramon, Moniez, Marc, Moos, H.W., Moustakas, John, Myers, Adam D., Papovich, Casey, Peacock, John A., Park, Changbom, Rahman, Mubdi, Rhodes, Jason, Ricol, Jean-Stephane, Sadeh, Iftach, Slozar, Anže, Schmidt, Samuel J., Stern, Daniel K., Anthony Tyson, J., von der Linden, Anja, Wechsler, Risa H., Wood-Vasey, W.M., and Zentner, Andrew R.

Published
2015
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2. Photometric redshifts and clustering of emission line galaxies selected jointly by DES and eBOSS

Author

Jouvel, Stéphanie, Delubac, Timothée, Comparat, Johan, Camacho Chavez, Hugo Orlando, Carnero Rosell, Aurelio, Abdalla, Filipe B., Kneib, J.P., Merson, Alexander I., Lima, Marcos Vinicius Borges Teixeira, Sobreira, Flávia, Costa, Luiz N. da, Prada, F., Zhu, Guangtun, Benoit-Lévy, Aurélien, Macorra, Axel de la, Kuropatkin, Nikolay P., Lin, H., Abbott, Timothy M. C., Allam, Sahar S., Banerji, M., Bertin, Emmanuel, Brooks, D., Capozzi, Diego, Carrasco Kind, Matías, Carretero Palacios, Jorge, Castander Serentill, Francisco Javier, Cunha, Carlos Eduardo, Desai, S., Doel, Peter, Eifler, Tim, Estrada, Juan, Fausti Neto, Angelo, Flaugher, Brenna, Fosalba Vela, Pablo, Frieman, Joshua A., Gaztañaga, Enrique, Gerdes, David W., Gruen, Daniel, Gruendl, Robert A., Gutierrez, Gaston R., Honscheid, K., James, David J., Kuehn, Kyler, Lahav, Ofer, Li, T. S., Maia, Marcio Antonio Geimba, March, Marisa Cristina, Marshall, Jennifer L., Miquel, Ramon, Ogando, Ricardo L.C., Percival, Will J., Plazas Malagón, Andrés Alejandro, Reil, Kevin, Romer, Anita K., Roodman, Aaron, Rykoff, Eli, Sako, Masao, Sanchez-Alvaro, Eusebio, Santiago, Basilio Xavier, Scarpine, Victor Emanuel, Sevilla Noarbe, Ignacio, Soares-Santos, Marcelle, Suchyta, Eric, Tarle, Gregory, Thaler, Jon J., Thomas, D., Walker, Alistair, Zhang, Yuanyuan, and Brownstein, Joel R.

Subjects
Mapeamentos astronômicos, Fotometria astronômica, Deslocamento para o vermelho, Surveys, Espectroscopia, observations [Cosmology]
Abstract

We present the results of the first observations of the emission line galaxies (ELG) of the extended Baryon Oscillation Spectroscopic Survey. From the total 9000 targets, 4600 have been selected from the Dark Energy Survey (DES). In this subsample, the total success rate for redshifts between 0.6 and 1.2 is 71 and 68 per cent for a bright and a faint samples, respectively, including redshifts measured from a single strong emission line. The mean redshift is 0.80 for the bright and 0.87 for the faint sample, while the percentage of unknown redshifts is 15 and 13 per cent, respectively. In both cases, the star contamination is lower than 2 per cent. We evaluate how well the ELG redshifts are measured using the target selection photometry and validating with the spectroscopic redshifts measured by eBOSS. We explore different techniques to reduce the photometric redshift outliers fraction with a comparison between the template fitting, the neural networks and the random forest methods. Finally, we study the clustering properties of the DES SVA1 ELG samples. We select only the most secure spectroscopic redshift in the redshift range 0.6 < z < 1.2, leading to a mean redshift for the bright and faint sample of 0.85 and 0.90, respectively. We measure the projected angular correlation function and obtain a galaxy bias averaging on scales from 1 to 10 Mpc h−1 of 1.58 ± 0.10 for the bright sample and 1.65 ± 0.12 for the faint sample. These values are representative of a galaxy population with MB − log(h) < −20.5, in agreement with what we measure by fitting galaxy templates to the photometric data.

Published
2017

3. A study of quasar selection in the supernova fields of the Dark Energy Survey

Author

Tie, Suk Sien, Martini, Paul, Mudd, Dale, Ostrovski, F., Reed, Sophie L., Lidman, Chris, Kochanek, C.S., Davis, Tamara M., Sharp, Robert G., Uddin, Syed, King, Anthea L., Wester, William Carl, Tucker, Bradley, Tucker, Douglas L., Buckley-Geer, Elizabeth, Carollo, Daniela, Childress, Michael, Glazebrook, Karl, Hinton, Samuel, Lewis, Geraint F., Macaulay, Edward, O'Neill, C. R., Abbott, Timothy M. C., Abdalla, Filipe B., Annis, James T., Benoit-Lévy, Aurélien, Bertin, Emmanuel, Brooks, D., Carnero Rosell, Aurelio, Carrasco Kind, Matías, Carretero Palacios, Jorge, Cunha, Carlos Eduardo, Costa, Luiz N. da, DePoy, Darren L., Desai, S., Doel, Peter, Eifler, Tim, Evrard, August E., Finley, David A., Flaugher, Brenna, Fosalba Vela, Pablo, Frieman, Joshua A., García-Bellido, Juan, Gaztañaga, Enrique, Gerdes, David W., Goldstein, Daniel Abraham, Gruen, Daniel, Gruendl, Robert A., Gutierrez, Gaston R., Honscheid, K., James, David J., Kuehn, Kyler, Kuropatkin, Nikolay P., Lima, Marcos Vinicius Borges Teixeira, Maia, Marcio Antonio Geimba, Marshall, Jennifer L., Menanteau, Felipe, Miller, Christopher J., Miquel, Ramon, Nichol, Robert C., Nord, Brian Dennis, Ogando, Ricardo L.C., Plazas Malagón, Andrés Alejandro, Romer, Anita K., Sanchez-Alvaro, Eusebio, Santiago, Basilio Xavier, Scarpine, Victor Emanuel, Schubnell, Michael, Sevilla Noarbe, Ignacio, Smith, Robert Christopher, Soares-Santos, Marcelle, Sobreira, Flávia, Suchyta, Eric, Swanson, Molly E. C., Tarle, Gregory, Thomas, D., Walker, Alistair, and DES Collaboration

Subjects
Mapeamentos astronômicos, Fotometria astronômica, Catalogos astronomicos, general [Quasars], Quasars
Abstract

We present a study of quasar selection using the supernova fields of the Dark Energy Survey (DES). We used a quasar catalog from an overlapping portion of the SDSS Stripe 82 region to quantify the completeness and efficiency of selection methods involving color, probabilistic modeling, variability, and combinations of color/ probabilistic modeling with variability. In all cases, we considered only objects that appear as point sources in the DES images. We examine color selection methods based on the Wide-field Infrared Survey Explorer (WISE) mid- IR W1 - W2 color, a mixture of WISE and DES colors (g − i and i - W1), and a mixture of Vista Hemisphere Survey and DES colors (g − i and i − K ). For probabilistic quasar selection, we used XDQSO, an algorithm that employs an empirical multi-wavelength flux model of quasars to assign quasar probabilities. Our variability selection uses the multi-band χ2-probability that sources are constant in the DES Year 1 griz-band light curves. The completeness and efficiency are calculated relative to an underlying sample of point sources that are detected in the required selection bands and pass our data quality and photometric error cuts. We conduct our analyses at two magnitude limits, i85% for both i-band magnitude limits and efficiencies of >80% to the bright limit and >60% to the faint limit; however, the giW1 and giW1+variability methods give the highest quasar surface densities. The XDQSOz method and combinations of W1W2/giW1/XDQSOz with variability are among the better selection methods when both high completeness and high efficiency are desired. We also present the OzDES Quasar Catalog of 1263 spectroscopically confirmed quasars from three years of OzDES observation in the 30 deg2 of the DES supernova fields. The catalog includes quasars with redshifts up to z4 and brighter than i = 22 mag, although the catalog is not complete up to this magnitude limit.

Published
2017

4. Galaxy populations in massive galaxy clusters to z = 1.1 : colour distribution, concentration, halo occupation number and red sequence fraction

Author

Hennig, C., Mohr, Joseph J., Zenteno, Alfredo, Desai, S., Dietrich, Jörg P., Bocquet, Sebastian, Strazzullo, Veronica, Saro, Alexandro, Abbott, Timothy M. C., Abdalla, Filipe B., Bayliss, Matthew B., Benoit-Lévy, Aurélien, Bernstein, Gary M., Bertin, Emmanuel, Brooks, D., Capasso, Raffaella, Capozzi, Diego, Carnero Rosell, Aurelio, Carrasco Kind, Matías, Carretero Palacios, Jorge, Chiu, I. Non Tim, D'Andrea, Christopher B., Costa, Luiz N. da, Diehl, H. Thomas, Doel, Peter, Eifler, Tim, Evrard, August E., Fausti Neto, Angelo, Fosalba Vela, Pablo, Frieman, Joshua A., Gangkofner, C., Gonzalez, Anthony, Gruen, Daniel, Gruendl, Robert A., Gupta, Nayantara, Gutierrez, Gaston R., Honscheid, K., Hlavacek-Larrondo, Julie, James, David J., Kuehn, Kyler, Kuropatkin, Nikolay P., Lahav, Ofer, March, Marisa Cristina, Marshall, Jennifer L., Martini, Paul, McDonald, Michael Kenneth, Melchior, Peter M., Miller, Christopher J., Miquel, Ramon, Neilsen, Eric H., Nord, Brian Dennis, Ogando, Ricardo L.C., Plazas Malagón, Andrés Alejandro, Reichardt, Christian L., Romer, Anita K., Rozo, Eduardo, Rykoff, Eli, Sanchez-Alvaro, Eusebio, Santiago, Basilio Xavier, Schubnell, Michael, Sevilla Noarbe, Ignacio, Smith, Robert Christopher, Soares-Santos, Marcelle, Sobreira, Flávia, Stalder, Brian, Stanford, Spencer Adam, Suchyta, Eric, Swanson, Molly E. C., Tarle, Gregory, Thomas, D., Vikram, Vinu, Walker, Alistair, and Zhang, Yuanyuan

Subjects
Galáxias ativas, Galaxies formation, Populacoes estelares, Galaxies evolution, Galaxies clusters individual, Galaxies mass function, Galaxies luminosity function, Aglomerados globulares, Galaxies clusters general
Abstract

We study the galaxy populations in 74 Sunyaev–Zeldovich effect selected clusters from the South Pole Telescope survey, which have been imaged in the science verification phase of the Dark Energy Survey. The sample extends up to z ∼ 1.1 with 4 × 1014M ≤ M200 ≤ 3 × 1015M . Using the band containing the 4000 Å break and its redward neighbour, we study the colour–magnitude distributions of cluster galaxies to ∼m∗ + 2, finding that: (1)The intrinsic rest frame g − r colour width of the red sequence (RS) population is ∼0.03 out to z ∼ 0.85 with a preference for an increase to ∼0.07 at z = 1, and (2) the prominence of the RS declines beyond z ∼ 0.6. The spatial distribution of cluster galaxies is well described by the NFW profile out to 4R200 with a concentration of cg = 3.59+0.20 −0.18, 5.37+0.27 −0.24 and 1.38+0.21 −0.19 for the full, the RS and the blue non-RS populations, respectively, but with ∼40 per cent to 55 per cent cluster to cluster variation and no statistically significant redshift or mass trends. The number of galaxies within the virial region N200 exhibits a mass trend indicating that the number of galaxies per unit total mass is lower in the most massive clusters, and shows no significant redshift trend. The RS fraction within R200 is (68 ± 3) per cent at z = 0.46, varies from ∼55 per cent at z = 1 to ∼80 per cent at z = 0.1 and exhibits intrinsic variation among clusters of ∼14 per cent. We discuss a model that suggests that the observed redshift trend in RS fraction favours a transformation time-scale for infalling field galaxies to become RS galaxies of 2–3 Gyr.

Published
2017

5. An r -process enhanced star in the dwarf galaxy Tucana III

Author

Hansen, Terese T., Simon, Josh D., Marshall, Jennifer L., Li, T. S., Carollo, Daniela, DePoy, Darren L., Nagasawa, Daniel Q., Bernstein, Rebecca A., Drlica-Wagner, Alex, Abdalla, Filipe B., Allam, Sahar S., Annis, James T., Bechtol, Keith, Benoit-Lévy, Aurélien, Brooks, D., Buckley-Geer, Elizabeth, Carnero Rosell, Aurelio, Carrasco Kind, Matías, Carretero Palacios, Jorge, Cunha, Carlos Eduardo, Costa, Luiz N. da, Desai, S., Eifler, Tim, Fausti Neto, Angelo, Flaugher, Brenna, Frieman, Joshua A., García-Bellido, Juan, Gaztañaga, Enrique, Gerdes, David W., Gruen, Daniel, Gruendl, Robert A., Gschwend, Julia de Figueiredo, Gutierrez, Gaston R., James, David J., Krause, Elisabeth, Kuehn, Kyler, Kuropatkin, Nikolay P., Lahav, Ofer, Miquel, Ramon, Plazas Malagón, Andrés Alejandro, Romer, Anita K., Sanchez-Alvaro, Eusebio, Santiago, Basilio Xavier, Scarpine, Victor Emanuel, Smith, Robert Christopher, Soares-Santos, Marcelle, Sobreira, Flávia, Suchyta, Eric, Swanson, Molly E. C., Tarle, Gregory, Walker, Alistair, and DES Collaboration

Subjects
dwarf [Galaxies], Readable tables, Nucleosíntese, Captura radioativa de nêutrons, abundances [Stars], abundances [galaxies], Metalicidade, Composicao estelar, machine [Supporting material], chemically peculiar [Stars]
Abstract

Chemically peculiar stars in dwarf galaxies provide a window for exploring the birth environment of stars with varying chemical enrichment. We present a chemical abundance analysis of the brightest star in the newly discovered ultra-faint dwarf galaxy candidate Tucana III. Because it is particularly bright for a star in an ultra-faint Milky Way (MW) satellite, we are able to measure the abundance of 28 elements, including 13 neutron-capture species. This star, DES J235532.66−593114.9 (DES J235532), shows a mild enhancement in neutron-capture elements associated with the r-process and can be classified as an r-I star. DES J235532 is the first r-I star to be discovered in an ultra-faint satellite, and Tuc III is the second extremely low-luminosity system found to contain rprocess enriched material, after Reticulum II. Comparison of the abundance pattern of DES J235532 with r-I and r-II stars found in other dwarf galaxies and in the MW halo suggests a common astrophysical origin for the neutron-capture elements seen in all r-process enhanced stars. We explore both internal and external scenarios for the r-process enrichment of Tuc III and show that with abundance patterns for additional stars, it should be possible to distinguish between them.

Published
2017

6. Farthest neighbor : the distant Milky Way satellite Eridanus II

Author

Li, T. S., Simon, Josh D., Drlica-Wagner, Alex, Bechtol, Keith, Wang, M., García-Bellido, Juan, Frieman, Joshua A., Marshall, Jennifer L., James, David J., Strigari, Louis E., Pace, Andrew B., Balbinot, Eduardo, Zhang, Yuanyuan, Abbott, Timothy M. C., Allam, Sahar S., Benoit-Lévy, Aurélien, Bernstein, Gary M., Bertin, Emmanuel, Brooks, D., Burke, David Lyle, Carnero Rosell, Aurelio, Carrasco Kind, Matías, Carretero Palacios, Jorge, Cunha, Carlos Eduardo, D'Andrea, Christopher B., Costa, Luiz N. da, DePoy, Darren L., Desai, S., Diehl, H. Thomas, Eifler, Tim, Flaugher, Brenna, Goldstein, Daniel Abraham, Gruen, Daniel, Gruendl, Robert A., Gschwend, Julia de Figueiredo, Gutierrez, Gaston R., Krause, Elisabeth, Kuehn, Kyler, Lin, H., Maia, Marcio Antonio Geimba, March, Marisa Cristina, Menanteau, Felipe, Miquel, Ramon, Plazas Malagón, Andrés Alejandro, Romer, Anita K., Sanchez-Alvaro, Eusebio, Santiago, Basilio Xavier, Schubnell, Michael, Sevilla Noarbe, Ignacio, Smith, Robert Christopher, Sobreira, Flávia, Suchyta, Eric, Tarle, Gregory, Thomas, D., Tucker, Douglas L., Walker, Alistair, Wechsler, Risa H., Wester, William Carl, Yanny, Brian, and DES Collaboration

Subjects
dwarf [Galaxies], Populacoes estelares, Via láctea, abundances [Stars], Dark matter, Local group, Matéria escura, stellar content [Galaxies], individual (Eridanus II) [Galaxies], Composicao estelar, Metalicidade, Galáxias
Abstract

We present Magellan/IMACS spectroscopy of the recently discovered Milky Way satellite EridanusII (Eri II). We identify 28 member stars in EriII, from which we measure a systemic radial velocity of vhel = 75.6 1.3 (stat.) 2.0 (sys.) km s-1 and a velocity dispersion of - 6.9+0.9 1.2 km s-1. Assuming that EriII is a dispersion-supported system in dynamical equilibrium, we derive a mass within the half-light radius of - ´ 1.2+ 10 0.3 0.4 7 M, indicating a mass-tolight ratio of - 420+140 210 M/L and confirming that it is a dark matter-dominated dwarf galaxy. From the equivalent width measurements of the Ca triplet lines of 16 red giant member stars, we derive a mean metallicity of [Fe/ H]=−2.38±0.13 and a metallicity dispersion of s[ / ] = - 0.47+ Fe H 0.09 0.12. The velocity of EriII in the Galactic standard of rest frame is vGSR=−66.6 km s-1, indicating that either EriII is falling into the Milky Way potential for the first time or that it has passed the apocenter of its orbit on a subsequent passage. At a Galactocentric distance of 370 kpc, Eri II is one of the Milky Way’s most distant satellites known. Additionally, we show that the bright blue stars previously suggested to be a young stellar population are not associated with EriII. The lack of gas and recent star formation in EriII is surprising given its mass and distance from the Milky Way, and may place constraints on models of quenching in dwarf galaxies and on the distribution of hot gas in the Milky Way halo. Furthermore, the large velocity dispersion of Eri II can be combined with the existence of a central star cluster to constrain massive compact halo object dark matter with mass 10 M.

Published
2017

7. Nearest neighbor : the low-mass Milky Way satellite Tucana III

Author

Simon, Josh D., Li, T. S., Drlica-Wagner, Alex, Bechtol, Keith, Marshall, Jennifer L., James, David J., Wang, M., Strigari, Louis E., Balbinot, Eduardo, Kuehn, Kyler, Walker, Alistair, Abbott, Timothy M. C., Allam, Sahar S., Annis, James T., Benoit-Lévy, Aurélien, Brooks, D., Buckley-Geer, Elizabeth, Burke, David Lyle, Carnero Rosell, Aurelio, Carrasco Kind, Matías, Carretero Palacios, Jorge, Cunha, Carlos Eduardo, D'Andrea, Christopher B., Costa, Luiz N. da, DePoy, Darren L., Desai, S., Doel, Peter, Fernandez, Enrique, Flaugher, Brenna, Frieman, Joshua A., García-Bellido, Juan, Gaztañaga, Enrique, Goldstein, Daniel Abraham, Gruen, Daniel, Gutierrez, Gaston R., Kuropatkin, Nikolay P., Maia, Marcio Antonio Geimba, Martini, Paul, Menanteau, Felipe, Miller, Christopher J., Miquel, Ramon, Neilsen, Eric H., Nord, Brian Dennis, Ogando, Ricardo L.C., Plazas Malagón, Andrés Alejandro, Romer, Anita K., Rykoff, Eli, Sanchez-Alvaro, Eusebio, Santiago, Basilio Xavier, Scarpine, Victor Emanuel, Schubnell, Michael, Sevilla Noarbe, Ignacio, Smith, Robert Christopher, Sobreira, Flávia, Suchyta, Eric, Swanson, Molly E. C., Tarle, Gregory, Whiteway, L., Yanny, Brian, and DES Collaboration

Subjects
dwarf [Galaxies], Via láctea, individual (Tucana III) [Galaxies], abundances [Stars], Dark matter, Local group, Matéria escura, stellar content [Galaxies], Composicao estelar, Metalicidade, Galáxias
Abstract

We present Magellan/IMACS spectroscopy of the recently discovered Milky Way satellite TucanaIII (Tuc III). We identify 26 member stars in TucIII from which we measure a mean radial velocity of vhel=−102.3±0.4 (stat.)±2.0(sys.) km s-1, a velocity dispersion of - 0.1+0.1 0.7 km s-1, and a mean metallicity of = - - [Fe/H] 2.42+0.08 0.07. The upper limit on the velocity dispersion is σ

Published
2017

8. Observation of two new L4 Neptune Trojans in the Dark Energy Survey supernova fields

Author

Gerdes, David W., Jennings, R. J., Bernstein, Gary M., Sako, Masao, Adams, Fred, Goldstein, Daniel Abraham, Kessler, Richard S., Hamilton, S., Abbott, Timothy M. C., Abdalla, Filipe B., Allam, Sahar S., Benoit-Lévy, Aurélien, Bertin, Emmanuel, Brooks, D., Buckley-Geer, Elizabeth, Burke, David Lyle, Capozzi, Diego, Carnero Rosell, Aurelio, Carrasco Kind, Matías, Carretero Palacios, Jorge, Cunha, Carlos Eduardo, D'Andrea, Christopher B., Costa, Luiz N. da, DePoy, Darren L., Desai, S., Dietrich, Jörg P., Doel, Peter, Eifler, Tim, Fausti Neto, Angelo, Flaugher, Brenna, Frieman, Joshua A., Gaztañaga, Enrique, Gruen, Daniel, Gruendl, Robert A., Gutierrez, Gaston R., Honscheid, K., James, David J., Kuehn, Kyler, Kuropatkin, Nikolay P., Lahav, Ofer, Li, T. S., Maia, Marcio Antonio Geimba, March, Marisa Cristina, Martini, Paul, Miller, Christopher J., Miquel, Ramon, Nichol, Robert C., Nord, Brian Dennis, Ogando, Ricardo L.C., Plazas Malagón, Andrés Alejandro, Romer, Anita K., Roodman, Aaron, Sanchez-Alvaro, Eusebio, Santiago, Basilio Xavier, Schubnell, Michael, Sevilla Noarbe, Ignacio, Smith, Robert Christopher, Soares-Santos, Marcelle, Sobreira, Flávia, Suchyta, Eric, Swanson, Molly E. C., Tarle, Gregory, Thaler, Jon J., Walker, Alistair, Wester, William Carl, Zhang, Yuanyuan, and DES Collaboration

Subjects
Asteroides, Sistema solar, Fotometria astronômica, Minor planets, general [Asteroids]
Abstract

We report the discovery of the eighth and ninth known Trojans in stable orbits around Neptune’s leading Lagrange point, L4. The objects 2014QO441 and 2014QP441 were detected in data obtained during the 2013–14 and 2014–15 observing seasons by the Dark Energy Survey, using the Dark Energy Camera (DECam) on the 4-m Blanco telescope at Cerro Tololo Inter-American Observatory. Both are in high-inclination orbits (18°.8 and 19°.4, respectively). With an eccentricity of 0.104, 2014QO441 has the most eccentric orbit of the 11 known stable Neptune Trojans. Here we describe the search procedure and investigate the objects’ long-term dynamical stability and physical properties.

Published
2016

9. Redshift distributions of galaxies in the Dark Energy Survey Science Verification shear catalogue and implications for weak lensing

Author

Bonnett, Christopher, Troxel, Michael, Hartley, William, Amara, Adam, Leistedt, Boris, Becker, Matthew R., Bernstein, Gary M., Bridle, Sarah Louise, Bruderer, Claudio, Busha, M. T., Carrasco Kind, Matías, Childress, Michael, Castander Serentill, Francisco Javier, Chang, Chihway, Crocce, Martin, Davis, Tamara M., Eifler, Tim, Frieman, Joshua A., Gangkofner, C., Gaztañaga, Enrique, Glazebrook, Karl, Gruen, Daniel, Kacprzak, Tomasz, King, Anthea L., Kwan, Juliana, Lahav, Ofer, Lewis, Geraint F., Lidman, Chris, Lin, H., MacCrann, Niall, Miquel, Ramon, O'Neill, C. R., Palmese, A., Peiris, Hiranya V., Refregier, Alexandre, Rozo, Eduardo, Rykoff, Eli, Sadeh, Iftach, Sánchez Alonso, Carles, Sheldon, Erin, Uddin, Syed, Wechsler, Risa H., Zuntz, J., Abbott, Timothy M. C., Abdalla, Filipe B., Allam, Sahar S., Armstrong, Robert, Banerji, M., Bauer, Anne Hollister, Benoit-Lévy, Aurélien, Bertin, Emmanuel, Brooks, D., Buckley-Geer, Elizabeth, Burke, David Lyle, Capozzi, Diego, Carnero Rosell, Aurelio, Carretero Palacios, Jorge, Cunha, Carlos Eduardo, D'Andrea, Christopher B., Costa, Luiz N. da, DePoy, Darren L., Desai, S., Diehl, H. Thomas, Dietrich, Jörg P., Doel, Peter, Fausti Neto, Angelo, Fernandez, Enrique, Flaugher, Brenna, Fosalba Vela, Pablo, Gerdes, David W., Gruendl, Robert A., Honscheid, K., Jain, Bhuvnesh, James, David J., Jarvis, Michael, Kim, A. G., Kuehn, Kyler, Kuropatkin, Nikolay P., Li, T. S., Lima, Marcos Vinicius Borges Teixeira, Maia, Marcio Antonio Geimba, March, Marisa Cristina, Marshall, Jennifer L., Martini, Paul, Melchior, Peter M., Miller, Christopher J., Neilsen, Eric H., Nichol, Robert C., Nord, Brian Dennis, Ogando, Ricardo L.C., Plazas Malagón, Andrés Alejandro, Reil, Kevin, Romer, Anita K., Roodman, Aaron, Sako, Masao, Sanchez-Alvaro, Eusebio, Santiago, Basilio Xavier, Smith, Robert Christopher, Soares-Santos, Marcelle, Sobreira, Flávia, Suchyta, Eric, Swanson, Molly E. C., Tarle, Gregory, Thaler, Jon J., Thomas, D., Vikram, Vinu, Walker, Alistair, and DES Collaboration

Subjects
Lentes gravitacionais, DATA RELEASE, SURVEY REQUIREMENTS, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astronomy & Astrophysics, SHAPE MEASUREMENT, 01 natural sciences, Cosmology, Physics, Particles & Fields, PRECISION COSMOLOGY, LARGE-SCALE STRUCTURE, 0103 physical sciences, STAR-FORMING GALAXIES, PHOTO-Z PERFORMANCE, Deslocamento para o vermelho, Galáxias, PHOTOMETRIC REDSHIFTS, 010303 astronomy & astrophysics, Weak gravitational lensing, Astrophysics::Galaxy Astrophysics, QB, Photometric redshift, Physics, Science & Technology, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Sigma, VLT DEEP SURVEY, Redshift survey, Galaxy, Redshift, Fotometria astronômica, Physical Sciences, astro-ph.CO, Dark energy, NEURAL-NETWORKS
Abstract

We present photometric redshift estimates for galaxies used in the weak lensing analysis of the Dark Energy Survey Science Verification (DES SV) data. Four model-or machine learning-based photometric redshift methods-ANNZ2, BPZ calibrated against BCC-Ufig simulations, SKYNET, and TPZ-are analyzed. For training, calibration, and testing of these methods, we construct a catalogue of spectroscopically confirmed galaxies matched against DES SV data. The performance of the methods is evaluated against the matched spectroscopic catalogue, focusing on metrics relevant for weak lensing analyses, with additional validation against COSMOS photo-z's. From the galaxies in the DES SV shear catalogue, which have mean redshift 0.72 +/- 0.01 over the range 0.3 < z < 1.3, we construct three tomographic bins with means of z = {0.45;0.67;1.00}. These bins each have systematic uncertainties delta z

Published
2016
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10. The Phoenix stream : a cold stream in the southern hemisphere

Author

Balbinot, Eduardo, Yanny, Brian, Li, T. S., Santiago, Basilio Xavier, Marshall, Jennifer L., Finley, David A., Pieres, Adriano, Abbott, Timothy M. C., Abdalla, Filipe B., Allam, Sahar S., Benoit-Lévy, Aurélien, Bernstein, Gary M., Bertin, Emmanuel, Brooks, D., Burke, David Lyle, Carnero Rosell, Aurelio, Carrasco Kind, Matías, Carretero Palacios, Jorge, Cunha, Carlos Eduardo, Costa, Luiz N. da, DePoy, Darren L., Desai, S., Diehl, H. Thomas, Doel, Peter, Estrada, Juan, Flaugher, Brenna, Frieman, Joshua A., Gerdes, David W., Gruen, Daniel, Gruendl, Robert A., Honscheid, K., James, David J., Kuehn, Kyler, Kuropatkin, Nikolay P., Lahav, Ofer, March, Marisa Cristina, Martini, Paul, Miquel, Ramon, Nichol, Robert C., Ogando, Ricardo L.C., Romer, Anita K., Sanchez-Alvaro, Eusebio, Schubnell, Michael, Sevilla Noarbe, Ignacio, Smith, Robert Christopher, Soares-Santos, Marcelle, Sobreira, Flávia, Suchyta, Eric, Tarle, Gregory, Thomas, D., Tucker, Douglas L., Walker, Alistair, and DES Collaboration

Subjects
Fotometria astronômica, Evolucao estelar, halo [Galaxy], Galaxia, structure [Galaxy]
Abstract

We report the discovery of a stellar stream in the Dark Energy Survey Year 1 (Y1A1) data. The discovery was made through simple color–magnitude filters and visual inspection of the Y1A1 data. We refer to this new object as the Phoenix stream, after its resident constellation. After subtraction of the background stellar population we detect a clear signal of a simple stellar population. By fitting the ridge line of the stream in color–magnitude space, we find that a stellar population with age τ=11.5±0.5 Gyr and [Fe/H]

Published
2016

11. Digging deeper into the Southern skies : a compact Milky Way companion discovered in first-year Dark Energy Survey data

Author

Luque Canaza, Elmer Fidel, Queiroz, Anna Bárbara de Andrade, Santiago, Basilio Xavier, Pieres, Adriano, Balbinot, Eduardo, Bechtol, Keith, Drlica-Wagner, Alex, Fausti Neto, Angelo, Costa, Luiz N. da, Maia, Marcio Antonio Geimba, Yanny, Brian, Abbott, Timothy M. C., Allam, Sahar S., Benoit-Lévy, Aurélien, Bertin, Emmanuel, Brooks, D., Buckley-Geer, Elizabeth, Burke, David Lyle, Carnero Rosell, Aurelio, Carrasco Kind, Matías, Carretero Palacios, Jorge, Cunha, Carlos Eduardo, Desai, S., Diehl, H. Thomas, Dietrich, Jörg P., Eifler, Tim, Finley, David A., Flaugher, Brenna, Fosalba Vela, Pablo, Frieman, Joshua A., Gerdes, David W., Gruen, Daniel, Gutierrez, Gaston R., Honscheid, K., James, David J., Kuehn, Kyler, Kuropatkin, Nikolay P., Lahav, Ofer, Li, T. S., March, Marisa Cristina, Marshall, Jennifer L., Martini, Paul, Miquel, Ramon, Neilsen, Eric H., Nichol, Robert C., Nord, Brian Dennis, Ogando, Ricardo L.C., Plazas Malagón, Andrés Alejandro, Romer, Anita K., Roodman, Aaron, Sanchez-Alvaro, Eusebio, Scarpine, Victor Emanuel, Schubnell, Michael, Sevilla Noarbe, Ignacio, Smith, Robert Christopher, Soares-Santos, Marcelle, Sobreira, Flávia, Suchyta, Eric, Swanson, Molly E. C., Tarle, Gregory, Thaler, Jon J., Tucker, Douglas L., Walker, Alistair, Zhang, Y., and DES Collaboration

Subjects
Mapeamentos astronômicos, dwarf [Galaxies], Energia escura, individual (DES 1) [Globular clusters], general [Globular clusters], Aglomerados globulares, Galáxias
Abstract

We use the first-year Dark Energy Survey (DES) data down to previously unprobed photometric depths to search for stellar systems in the Galactic halo, therefore complementing the previous analysis of the same data carried out by our group earlier this year. Our search is based on a matched filter algorithm that produces stellar density maps consistent with stellar population models of various ages, metallicities, and distances over the survey area. The most conspicuous density peaks in these maps have been identified automatically and ranked according to their significance and recurrence for different input models. We report the discovery of one additional stellar system besides those previously found by several authors using the same first-year DES data. The object is compact, and consistent with being dominated by an old and metal-poor population. DES 1 is found at high significance and appears in the DES images as a compact concentration of faint blue point sources. Assuming different spatial profile parameterizations, the best-fitting heliocentric distance and total absolute magnitude in the range of 77.6–87.1 kpc and −3.00 MV −2.21, respectively. The half-light radius of this object, rh ∼ 10 pc and total luminosity are consistent with it being a low-mass halo cluster. It is also found to have a very elongated shape ( ∼ 0.57). In addition, our deeper probe of DES first-year data confirms the recently reported satellite galaxy candidate Horologium II as a significant stellar overdensity. We also infer its structural properties and compare them to those reported in the literature.

Published
2016

12. redMaGiC : selecting luminous red galaxies from the DES Science Verification data

Author

Rozo, Eduardo, Rykoff, Eli, Abate, Alexandra, Bonnet, Christopher Clive, Crocce, Martin, Davis, Christopher P., Hoyle, Ben, Leistedt, Boris, Peiris, Hiranya V., Wechsler, Risa H., Abbott, Timothy M. C., Abdalla, Filipe B., Banerji, M., Bauer, Anne Hollister, Benoit-Lévy, Aurélien, Bernstein, Gary M., Bertin, Emmanuel, Brooks, D., Buckley-Geer, Elizabeth, Burke, David Lyle, Capozzi, Diego, Carnero Rosell, Aurelio, Carollo, Daniela, Carrasco Kind, Matías, Carretero Palacios, Jorge, Castander Serentill, Francisco Javier, Childress, Michael, Cunha, Carlos Eduardo, D'Andrea, Christopher B., Davis, Tamara M., DePoy, Darren L., Desai, S., Diehl, H. Thomas, Dietrich, Jörg P., Doel, Peter, Eifler, Tim, Evrard, August E., Fausti Neto, Angelo, Flaugher, Brenna, Fosalba Vela, Pablo, Frieman, Joshua A., Gaztañaga, Enrique, Gerdes, David W., Glazebrook, Karl, Gruen, Daniel, Gruendl, Robert A., Honscheid, K., James, David J., Jarvis, Michael, Kim, A. G., Kuehn, Kyler, Kuropatkin, Nikolay P., Lahav, Ofer, Lewis, Geraint F., Lidman, Chris, Lima, Marcos Vinicius Borges Teixeira, Maia, Marcio Antonio Geimba, March, Marisa Cristina, Martini, Paul, Melchior, Peter M., Miller, Christopher J., Miquel, Ramon, Mohr, Joseph J., Nichol, Robert C., Nord, Brian Dennis, O'Neill, C. R., Ogando, Ricardo L.C., Plazas Malagón, Andrés Alejandro, Romer, Anita K., Roodman, Aaron, Sako, Masao, Sanchez-Alvaro, Eusebio, Santiago, Basilio Xavier, Schubnell, Michael, Sevilla Noarbe, Ignacio, Smith, Robert Christopher, Soares-Santos, Marcelle, Sobreira, Flávia, Suchyta, Eric, Swanson, Molly E. C., Thaler, Jon J., Thomas, D., Uddin, Syed, Vikram, Vinu, Walker, Alistair, Wester, William Carl, Zhang, Yuanyuan, and Costa, Luiz N. da

Subjects
statistical [Methods], Fotometria astronômica, photometric [Techniques], general [Galaxies], Deslocamento para o vermelho, Galáxias
Abstract

We introduce redMaGiC, an automated algorithm for selecting luminous red galaxies (LRGs). The algorithm was specifically developed to minimize photometric redshift uncertainties in photometric large-scale structure studies. redMaGiC achieves this by self-training the colour cuts necessary to produce a luminosity-thresholded LRG sample of constant comoving density. We demonstrate that redMaGiC photo-zs are very nearly as accurate as the best machine learning-based methods, yet they require minimal spectroscopic training, do not suffer from extrapolation biases, and are very nearly Gaussian. We apply our algorithm to Dark Energy Survey (DES) Science Verification (SV) data to produce a redMaGiC catalogue sampling the redshift range z ∈ [0.2, 0.8]. Our fiducial sample has a comoving space density of 10−3 (h−1 Mpc)−3, and a median photo-z bias (zspec − zphoto) and scatter (σz/(1 + z)) of 0.005 and 0.017, respectively. The corresponding 5σ outlier fraction is 1.4 per cent.We also test our algorithm with Sloan Digital Sky Survey Data Release 8 and Stripe 82 data, and discuss how spectroscopic training can be used to control photo-z biases at the 0.1 per cent level.

Published
2016

13. Stellar kinematics and metallicities in the ultra-faint dwarf galaxy Reticulum II

Author

Simon, Josh D., Drlica-Wagner, Alex, Li, T. S., Nord, Brian Dennis, Geha, Marla, Bechtol, Keith, Balbinot, Eduardo, Buckley-Geer, Elizabeth, Lin, H., Marshall, Jennifer L., Santiago, Basilio Xavier, Strigari, Louis E., Wang, M., Wechsler, Risa H., Yanny, Brian, Abbott, Timothy M. C., Bauer, Anne Hollister, Bernstein, Gary M., Bertin, Emmanuel, Brooks, D., Burke, David Lyle, Capozzi, Diego, Carnero Rosell, Aurelio, Carrasco Kind, Matías, D'Andrea, Christopher B., Costa, Luiz N. da, DePoy, Darren L., Desai, S., Diehl, H. Thomas, Dodelson, Scott, Cunha, Carlos Eduardo, Estrada, Juan, Evrard, August E., Fausti Neto, Angelo, Fernandez, Enrique, Finley, David A., Flaugher, Brenna, Frieman, Joshua A., Gaztañaga, Enrique, Gerdes, David W., Gruen, Daniel, Gruendl, Robert A., Honscheid, K., James, David J., Kent, Stephen M., Kuehn, Kyler, Kuropatkin, Nikolay P., Lahav, Ofer, Maia, Marcio Antonio Geimba, March, Marisa Cristina, Martini, Paul, Miller, Christopher J., Miquel, Ramon, Ogando, Ricardo L.C., Romer, Anita K., Roodman, Aaron, Sako, Masao, Sanchez-Alvaro, Eusebio, Schubnell, Michael, Sevilla Noarbe, Ignacio, Smith, Robert Christopher, Soares-Santos, Marcelle, Sobreira, Flávia, Suchyta, Eric, Swanson, Molly E. C., Tarle, Gregory, Thaler, Jon J., Tucker, Douglas L., Vikram, Vinu, Walker, Alistair, Wester, William Carl, and DES Collaboration

Subjects
dwarf [Galaxies], abundances [Stars], Dark matter, individual (Reticulum II) [Galaxies], Local group, Matéria escura, stellar content [Galaxies], Galaxia, Composicao estelar, Dinamica estelar, Grande Nuvem de Magalhães, Espectros estelares, Pequena Nuvem de Magalhães
Abstract

We present Magellan/M2FS, Very Large Telescope/GIRAFFE, and Gemini South/GMOS spectroscopy of the newly discovered Milky Way satellite Reticulum II. Based on the spectra of 25 Ret II member stars selected from Dark Energy Survey imaging, we measure a mean heliocentric velocity of 62.8  0.5 km s-1 and a velocity dispersion of 3.3  0.7 km s-1. The mass-to-light ratio of Ret II within its half-light radius is 470  210 M L, demonstrating that it is a strongly dark matter-dominated system. Despite its spatial proximity to the Magellanic Clouds, the radial velocity of Ret II differs from that of the LMC and SMC by 199 and 83 km s-1, respectively, suggesting that it is not gravitationally bound to the Magellanic system. The likely member stars of Ret II span 1.3 dex in metallicity, with a dispersion of 0.28 ± 0.09 dex, and we identify several extremely metal-poor stars with [Fe/H] < -3. In combination with its luminosity, size, and ellipticity, these results confirm that Ret II is an ultra-faint dwarf galaxy. With a mean metallicity of [Fe/H] = -2.65  0.07, Ret II matches Segue 1 as the most metal-poor galaxy known. Although Ret II is the third-closest dwarf galaxy to the Milky Way, the line-of-sight integral of the dark matter density squared is log10 (J) 18.8 0.6 GeV cm =  2 -5 within 0 ◦. 2, indicating that the predicted gamma-ray flux from dark matter annihilation in Ret II is lower than that of several other dwarf galaxies.

Published
2015

14. Eight ultra-faint galaxy candidates discovered in year two the Dark Energy Survey

Author

Drlica-Wagner, Alex, Bechtol, Keith, Rykoff, Eli, Luque Canaza, Elmer Fidel, Queiroz, Anna Bárbara de Andrade, Mao, Yao-Yuan, Wechsler, Risa H., Simon, Josh D., Santiago, Basilio Xavier, Yanny, Brian, Balbinot, Eduardo, Dodelson, Scott, Fausti Neto, Angelo, James, David J., Li, T. S., Maia, Marcio Antonio Geimba, Marshall, Jennifer L., Pieres, Adriano, Stringer, Katelyn M., Walker, Alistair, Abbott, Timothy M. C., Abdalla, Filipe B., Allam, Sahar S., Benoit-Lévy, Aurélien, Bernstein, Rebecca A., Bernstein, Gary M., Bertin, Emmanuel, Brooks, D., Buckley-Geer, Elizabeth, Burke, David Lyle, Carnero Rosell, Aurelio, Carrasco Kind, Matías, Carretero Palacios, Jorge, Crocce, Martin, Costa, Luiz N. da, Desai, S., Diehl, H. Thomas, Dietrich, Jörg P., Doel, Peter, Eifler, Tim, Evrard, August E., Flaugher, Brenna, Fosalba Vela, Pablo, Frieman, Joshua A., Gaztañaga, Enrique, Gerdes, David W., Gruen, Daniel, Gruendl, Robert A., Gutierrez, Gaston R., Honscheid, K., Kuehn, Kyler, Kuropatkin, Nikolay P., Lahav, Ofer, Miquel, Ramon, Nord, Brian Dennis, Ogando, Ricardo L.C., Plazas Malagón, Andrés Alejandro, Reil, Kevin, Roodman, Aaron, Sako, Masao, Sanchez-Alvaro, Eusebio, Scarpine, Victor Emanuel, Schubnell, Michael, Sevilla Noarbe, Ignacio, Smith, Robert Christopher, Soares-Santos, Marcelle, Sobreira, Flávia, Suchyta, Eric, Swanson, Molly E. C., Tarle, Gregory, Tucker, Douglas L., Vikram, Vinu, Wester, William Carl, Zhang, Yuanyuan, Zuntz, J., and DES Collaboration

Subjects
dwarf [Galaxies], Via láctea, Local group, Galáxias
Abstract

We report the discovery of eight new ultra-faint dwarf galaxy candidates in the second year of optical imaging data from the Dark Energy Survey (DES). Six of these candidates are detected at high confidence, while two lowerconfidence candidates are identified in regions of non-uniform survey coverage. The new stellar systems are found by three independent automated search techniques and are identified as overdensities of stars, consistent with the isochrone and luminosity function of an old and metal-poor simple stellar population. The new systems are faint (MV > −4.7mag) and span a range of physical sizes (17 pc < r1/2 < 181 pc) and heliocentric distances (25 kpc < De < 214 kpc). All of the new systems have central surface brightnesses consistent with known ultrafaint dwarf galaxies (μ  27.5mag arcsec−2). Roughly half of the DES candidates are more distant, less luminous, and/or have lower surface brightnesses than previously known Milky Way satellite galaxies. Most of the candidates are found in the southern part of the DES footprint close to the Magellanic Clouds. We find that the DES data alone exclude (p < 10−3) a spatially isotropic distribution of Milky Way satellites and that the observed distribution can be well, though not uniquely, described by an association between several of the DES satellites and the Magellanic system. Our model predicts that the full sky may hold ∼100 ultra-faint galaxies with physical properties comparable to the DES satellites and that 20%–30% of these would be spatially associated with the Magellanic Clouds.

Published
2015

15. Discovery of two gravitationally lensed quasars in the Dark Energy Survey

Author

Agnello, Adriano, Treu, Tommaso, Ostrovski, F., Schechter, Paul L., Buckley-Geer, Elizabeth, Lin, H., Auger, Matthew W., Courbin, Frederic Y. M., Fassnacht, Christopher D., Frieman, Joshua A., Kuropatkin, Nikolay P., Marshall, Phillip J., McMahon, Richard G., Meylan, Georges, More, Andrew Mills, Suyu, Sherry, Rusu, Cristian Eduard, Finley, David A., Abbott, Timothy M. C., Abdalla, Filipe B., Allam, Sahar S., Annis, James T., Banerji, M., Benoit-Lévy, Aurélien, Bertin, Emmanuel, Brooks, D., Burke, David Lyle, Carnero Rosell, Aurelio, Carrasco Kind, Matías, Carretero Palacios, Jorge, Cunha, Carlos Eduardo, D'Andrea, Christopher B., Costa, Luiz N. da, Desai, S., Diehl, H. Thomas, Dietrich, Jörg P., Doel, Peter, Eifler, Tim, Estrada, Juan, Fausti Neto, Angelo, Flaugher, Brenna, Fosalba Vela, Pablo, Gerdes, David W., Gruen, Daniel, Gutierrez, Gaston R., Honscheid, K., James, David J., Kent, Stephen M., Kuehn, Kyler, Lahav, Ofer, Lima, Marcos Vinicius Borges Teixeira, Maia, Marcio Antonio Geimba, March, Marisa Cristina, Marshall, Jennifer L., Martini, Paul, Melchior, Peter M., Miller, Christopher J., Miquel, Ramon, Nichol, Robert C., Ogando, Ricardo L.C., Plazas Malagón, Andrés Alejandro, Reil, Kevin, Romer, Anita K., Roodman, Aaron, Sako, Masao, Sanchez-Alvaro, Eusebio, Santiago, Basilio Xavier, Scarpine, Victor Emanuel, Schubnell, Michael, Sevilla Noarbe, Ignacio, Smith, Robert Christopher, Soares-Santos, Marcelle, Sobreira, Flávia, Suchyta, Eric, Swanson, Molly E. C., Tarle, Gregory, Thaler, Jon J., Tucker, Douglas L., Walker, Alistair, Wechsler, Risa H., and Zhang, Yuanyuan

Subjects
statistical [Methods], emission lines [Quasars], observational [Methods], Galáxias, strong [Gravitational lensing], Quasars
Abstract

We present spectroscopic confirmation of two new gravitationally lensed quasars, discovered in the Dark Energy Survey (DES) and Wide-field Infrared Survey Explorer (WISE) based on their multiband photometry and extended morphology in DES images. Images of DES J0115−5244 show a red galaxy with two blue point sources at either side, which are images of the same quasar at zs = 1.64 as obtained by our long-slit spectroscopic data. The Einstein radius estimated from the DES images is 0.51 arcsec. DES J2146−0047 is in the area of overlap between DES and the Sloan Digital Sky Survey (SDSS). Two blue components are visible in the DES and SDSS images. The SDSS fibre spectrum shows a quasar component at zs = 2.38 and absorption by Mg II and Fe II at zl = 0.799, which we tentatively associate with the foreground lens galaxy. Our long-slit spectra show that the blue components are resolved images of the same quasar. The Einstein radius is 0.68 arcsec, corresponding to an enclosed mass of 1.6 × 1011M . Three other candidates were observed and rejected, two being low-redshift pairs of starburst galaxies, and one being a quasar behind a blue star. These first confirmation results provide an important empirical validation of the data mining and model-based selection that is being applied to the entire DES data set.

Published
2015

16. Corrigendum to “Spectroscopic needs for imaging dark energy experiments” [Astropart. Phys. 63 (2015) 81–100]

Author

Newman, Jeffrey A., Abate, Alexandra, Abdalla, Filipe B., Allam, Sahar, Allen, Steven W., Ansari, Réza, Bailey, Stephen, Barkhouse, Wayne A., Beers, Timothy C., Blanton, Michael R., Brodwin, Mark, Brownstein, Joel R., Brunner, Robert J., Carrasco Kind, Matias, Cervantes-Cota, Jorge L., Cheu, Elliott, Chisari, Nora Elisa, Colless, Matthew, Comparat, Johan, Coupon, Jean, Cunha, Carlos E., de la Macorra, Axel, Dell’Antonio, Ian P., Frye, Brenda L., Gawiser, Eric J., Gehrels, Neil, Grady, Kevin, Hagen, Alex, Hall, Patrick B., Hearin, Andew P., Hildebrandt, Hendrik, Hirata, Christopher M., Ho, Shirley, Honscheid, Klaus, Huterer, Dragan, Ivezić, Željko, Kneib, Jean-Paul, Kruk, Jeffrey W., Lahav, Ofer, Mandelbaum, Rachel, Marshall, Jennifer L., Matthews, Daniel J., Ménard, Brice, Miquel, Ramon, Moniez, Marc, Moos, H.W., Moustakas, John, Myers, Adam D., Papovich, Casey, Peacock, John A., Park, Changbom, Rahman, Mubdi, Rhodes, Jason, Ricol, Jean-Stephane, Sadeh, Iftach, Slozar, Anže, Schmidt, Samuel J., Stern, Daniel K., Anthony Tyson, J., von der Linden, Anja, Wechsler, Risa H., Wood-Vasey, W.M., and Zentner, Andrew R.

Published
2015
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