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13 results on '"Oliver Steele"'

1. Galaxy And Mass Assembly (GAMA)

Author

Ivan K. Baldry, Jochen Liske, Andrew M. Hopkins, Sarah Brough, Helen M. Johnston, Michael Pracy, Benne W. Holwerda, Matt J. Jarvis, Scott M. Croom, Oliver Steele, Peder Norberg, Aaron S. G. Robotham, Matthew Colless, Lee S. Kelvin, Lingyu Wang, Daniel Thomas, Elaine M. Sadler, J. H. Y. Ching, Simon P. Driver, Jon Loveday, Joss Bland-Hawthorn, University of St Andrews. School of Physics and Astronomy, and Astronomy

Subjects
ACTIVE GALACTIC NUCLEI, Active galactic nucleus, Stellar mass, Radio galaxy, astro-ph.GA, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, galaxies [Radio continuum], Surveys, LUMINOSITY FUNCTIONS, 01 natural sciences, Luminosity, surveys, LOUD AGN, galaxies: groups: general, Galaxy group, 0103 physical sciences, QB Astronomy, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, QC, QB, STAR-FORMATION HISTORIES, Physics, radio continuum: galaxies, REDSHIFT SURVEY, INTERSTELLAR-MEDIUM, 010308 nuclear & particles physics, Astronomy, Astronomy and Astrophysics, 3rd-DAS, Redshift survey, Astrophysics - Astrophysics of Galaxies, Galaxy, Redshift, 1ST DATA RELEASE, HOST GALAXIES, groups: general [Galaxies], QC Physics, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), DIGITAL SKY SURVEY, COOLING FLOWS
Abstract

We study the environments of low- and high- excitation radio galaxies (LERGs and HERGs respectively) in the redshift range $0.01 < z < 0.4$, using a sample of 399 radio galaxies and environmental measurements from the Galaxy And Mass Assembly (GAMA) survey. In our analysis we use the fifth nearest neighbour density ($\Sigma_{5}$) and the GAMA galaxy groups catalogue (G3Cv6) and construct control samples of galaxies matched in {\update stellar mass and colour} to the radio-detected sample. We find that LERGs and HERGs exist in different environments and that this difference is dependent on radio luminosity. High-luminosity LERGs ($L_{\rm NVSS} \gtrsim 10^{24}$ W Hz$^{-1}$) lie in much denser environments than a matched radio-quiet control sample (about three times as dense, as measured by $\Sigma_{5}$), and are more likely to be members of galaxy groups ($82^{+5}_{-7}$ percent of LERGs are in GAMA groups, compared to $58^{+3}_{-3}$ percent of the control sample). In contrast, the environments of the HERGs and lower luminosity LERGs are indistinguishable from that of a matched control sample. Our results imply that high-luminosity LERGs lie in more massive haloes than non-radio galaxies of similar stellar mass and colour, in agreement with earlier studies (Wake et al. 2008; Donoso et al. 2010). When we control for the preference of LERGs to be found in groups, both high- and low- luminosity LERGs are found in higher-mass haloes ($\sim 0.2$ dex; at least 97 percent significant) than the non-radio control sample., Comment: 18 pages, 11 figures. Accepted for publication by MNRAS

Published
2017
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2. Stellar masses of SDSS-III/BOSS galaxies at z ∼ 0.5 and constraints to galaxy formation models

Author

Kaike Pan, Joel R. Brownstein, Daniel Thomas, David A. Wake, Bruno M. B. Henriques, Janine Pforr, Adam S. Bolton, Viktor Malanushenko, Stephanie A. Snedden, Daniel Oravetz, Claudia Maraston, Yanmei Chen, Benjamin A. Weaver, Diego Capozzi, Ramin A. Skibba, Donald G. York, Dmitry Bizyaev, Donald P. Schneider, Oliver Steele, Alaina Shelden, Karen L. Masters, Edd Edmondson, Howard Brewington, Alessandra Beifiori, Audrey Simmons, Jeremy L. Tinker, Robert C. Nichol, Tim D. Higgs, Kevin Bundy, and Elena Malanushenko

Subjects
Physics, Cosmology and Gravitation, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Stellar mass, media_common.quotation_subject, Metallicity, FOS: Physical sciences, Astronomy, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Redshift, Universe, Galaxy, Baryon, Boss, Space and Planetary Science, Galaxy formation and evolution, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Galaxy Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics, media_common
Abstract

We calculate stellar masses for massive luminous galaxies at redshift 0.2-0.7 using the first two years of data from the Baryon Oscillation Spectroscopic Survey (BOSS). Stellar masses are obtained by fitting model spectral energy distributions to u,g,r,i,z magnitudes, and simulations with mock galaxies are used to understand how well the templates recover the stellar mass. Accurate BOSS spectroscopic redshifts are used to constrain the fits. We find that the distribution of stellar masses in BOSS is narrow (Delta log M~0.5 dex) and peaks at about logM ~ 11.3 (for a Kroupa initial stellar mass function), and that the mass sampling is uniform over the redshift range 0.2 to 0.6, in agreement with the intended BOSS target selection. The galaxy masses probed by BOSS extend over ~10^{12} M, providing unprecedented measurements of the high-mass end of the galaxy mass function. We find that the galaxy number density above ~ 2.5 10^{11} M agrees with previous determinations. We perform a comparison with semi-analytic galaxy formation models tailored to the BOSS target selection and volume, in order to contain incompleteness. The abundance of massive galaxies in the models compare fairly well with the BOSS data, but the models lack galaxies at the massive end. Moreover, no evolution with redshift is detected from ~0.6 to 0.4 in the data, whereas the abundance of massive galaxies in the models increases to redshift zero. Additionally, BOSS data display colour-magnitude (mass) relations similar to those found in the local Universe, where the most massive galaxies are the reddest. On the other hand, the model colours do not display a dependence on stellar mass, span a narrower range and are typically bluer than the observations. We argue that the lack of a colour-mass relation for massive galaxies in the models is mostly due to metallicity, which is too low in the models., Comment: 31 pages, 32 figures, accepted for publication to the Monthly Notices of the Royal Astronomical Society

Published
2013
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3. Galaxy And Mass Assembly (GAMA): TheM-Zrelation for galaxy groups

Author

Sarah Brough, Matt S. Owers, Aaron S. G. Robotham, Maritza A. Lara-López, Daniel Thomas, Oliver Steele, Edward N. Taylor, Matthew Colless, Andrew M. Hopkins, and Peder Norberg

Subjects
Physics, Stellar mass, 010308 nuclear & particles physics, Metallicity, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 01 natural sciences, Galaxy, Redshift, Space and Planetary Science, Galaxy group, 0103 physical sciences, Control sample, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

The stellar mass and metallicity are among the fundamental parameters of galaxies. An understanding of the interplay between those properties as well as their environmental dependence will give us a general picture of the physics and feedback processes ongoing in groups of galaxies. We study the relationships and environmental dependencies between the stellar mass, and gas metallicity for more than 1900 galaxies in groups up to redshift 0.35 using the Galaxy And Mass Assembly (GAMA) survey. Using a control sample of more than 28000 star-forming field galaxies, we find evidence for a decrement of the gas metallicity for galaxies in groups. (© 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

Published
2013
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4. Investigating emission-line galaxy surveys with the Sloan Digital Sky Survey infrastructure

Author

Claudia Maraston, F. Lamareille, Johan Comparat, Jian Ge, Daniel Thomas, David J. Schlegel, Alexie Leauthaud, Stephanie Escoffier, Anne Ealet, Will J. Percival, Adam S. Bolton, Stephen Bailey, Joel R. Brownstein, Jean-Paul Kneib, Jeremy L. Tinker, Donald P. Schneider, Kyle S. Dawson, Julien Zoubian, Nick Mostek, Nicholas P. Ross, Éric Aubourg, Oliver Steele, C. Schimd, Benjamin A. Weaver, and Olivier Ilbert

Subjects
Physics, 010308 nuclear & particles physics, Standard ruler, Astronomy, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Redshift survey, 01 natural sciences, Galaxy, Cosmology, Redshift, Metric expansion of space, Space and Planetary Science, Observational cosmology, 0103 physical sciences, Baryon acoustic oscillations, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

The Baryon Acoustic Oscillation (BAO) feature in the power spectrum of galaxies can be used as a standard ruler to probe the accelerated expansion of the Universe. The current surveys covering a comoving volume sufficient to unveil the BAO scale are limited to redshift $z \lesssim 0.7$. In this paper, we study several galaxy selection schemes aiming at building an emission-line-galaxy (ELG) sample in the redshift range $0.6

Published
2012
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5. Stellar velocity dispersions and emission line properties of SDSS-III/BOSS galaxies

Author

Claudia Maraston, Daniel Thomas, Alessandra Beifiori, Janine Pforr, Gustav Stromback, David A. Wake, Christy Tremonti, Jonas Johansson, and Oliver Steele

Subjects
Physics, Luminous infrared galaxy, Space and Planetary Science, Radio galaxy, Surface brightness fluctuation, Galaxy group, Elliptical galaxy, Astronomy, Astronomy and Astrophysics, Astrophysics, Disc, Lenticular galaxy, Peculiar galaxy
Abstract

We perform a spectroscopic analysis of 492,450 galaxy spectra from the first two years of observations of the Sloan Digital Sky Survey-III/Baryonic Oscillation Spectroscopic Survey (BOSS) collaboration. This data set has been released in the ninth SDSS data release, the first public data release of BOSS spectra. We show that the typical signal-to-noise ratio of BOSS spectra is sufficient to measure stellar velocity dispersion and emission line fluxes for individual objects. The typical velocity dispersion of a BOSS galaxy is 240 km/s, with an accuracy of better than 30 per cent for 93 per cent of BOSS galaxies. The distribution in velocity dispersion is redshift independent between redshifts 0.15 and 0.7, which reflects the survey design targeting massive galaxies with an approximately uniform mass distribution in this redshift interval. The majority of BOSS galaxies lack detectable emission lines. We analyse the emission line properties and present diagnostic diagrams using the emission lines [OII], Hβ, [OIII], Halpha, and [NII] (detected in about 4 per cent of the galaxies). We show that the emission line properties are strongly redshift dependent and that there is a clear correlation between observed frame colours and emission line properties. Within in the low-z sample around 0.15 < z < 0.3, half of the emission-line galaxies have LINER-like emission line ratios, followed by Seyfert-AGN dominated spectra, and only a small fraction of a few per cent are purely star forming galaxies. AGN and LINER-like objects, instead, are less prevalent in the high-z sample around 0.4 < z < 0.7, where more than half of the emission line objects are star forming. This is a pure selection effect caused by the non-detection of weak Hβ emission lines in the BOSS spectra. Finally, we show that star forming, AGN and emission line free galaxies are well separated in the g - r vs r - i target selection diagram.

Published
2012
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6. The 0.1 < z < 1.65 evolution of the bright end of the [ OII ] luminosity function

Author

Jean-Paul Kneib, Stephanie Escoffier, Jiali Wang, Jun Ma, Xu Zhou, Roland Bacon, David J. Schlegel, Eric Jullo, Laurence Tresse, Jian Ge, Michael Lesser, Anne Ealet, Yipeng Jing, Carlton M. Baugh, Timothée Delubac, Lidia Tasca, Xiaohui Fan, Donald P. Schneider, Zhou Fan, Tianmeng Zhang, Cedric G. Lacey, Olivier Ilbert, Jundan Nie, Johan Comparat, Christophe Yèche, Oliver Steele, Zhenyu Wu, Joel R. Brownstein, Nicholas P. Ross, Julien Zoubian, Hu Zou, Zhimin Zhou, Zhaoji Jiang, Stephane Arnouts, Johan Richard, Violeta Gonzalez-Perez, 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), Centre de Recherche Astrophysique de Lyon (CRAL), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Ecole Polytechnique Fédérale de Lausanne (EPFL), Institute for Computational Cosmology (ICC), Durham University, 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), University of Utah, University of Florida [Gainesville] (UF), Drexel University, Lawrence Berkeley National Laboratory [Berkeley] (LBNL), Pennsylvania State University (Penn State), Penn State System, Institute of Cosmology and Gravitation, University of Portsmouth, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Steward Observatory (STEWARD OBSERVATORY), University of Arizona, National Astronomical Observatories [Beijing] (NAOC), Chinese Academy of Sciences [Beijing] (CAS), Shanghai Astronomical Observatory [Shanghai] (SHAO), Departamento de FisicaTeorica e IFT-UAM/CSIC, Universidad Autónoma de Madrid (UAM), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), EPFL Laboratoire d’astrophysique, 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), ANR-08-BLAN-0222,BOSS,Baryon Oscillation Spectroscopic Survey(2008), European Project: 336736,EC:FP7:ERC,ERC-2013-StG,CALENDS(2013), European Project: 290975,EC:FP7:ERC,ERC-2011-ADG_20110209,LIDA(2012), Universidad Autonoma de Madrid (UAM), and UAM. Departamento de Física Teórica

Subjects
luminosity function, mass function [Galaxies], [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Astrophysics::High Energy Astrophysical Phenomena, evolution. [Galaxies], Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Surveys, 01 natural sciences, Spectral line, statistics [Galaxies], surveys, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, Emission spectrum, observations [Cosmology], 010303 astronomy & astrophysics, Spectrograph, galaxies: statistics, Astrophysics::Galaxy Astrophysics, Luminosity function (astronomy), Line (formation), Physics, 010308 nuclear & particles physics, Galaxies: luminosity function, mass function, Astrophysics::Instrumentation and Methods for Astrophysics, Física, Astronomy and Astrophysics, evolution [Galaxies], Astrophysics - Astrophysics of Galaxies, luminosity function [Galaxies], Galaxy, Redshift, Baryon, galaxies: luminosity function, Space and Planetary Science, mass function, Mass function, cosmology: observations, Catalogs, galaxies: evolution, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], catalogs, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Astronomy and Astrophysics 575 (2015): A40 reproduced with permission from Astronomy & Astrophysics, © ESO, We present the [OII] (λλ3729,3726) luminosity function measured in the redshift range 0.1, J.C. acknowledges financial support from MINECO (Spain) under project number AYA2012-31101. J.R. acknowledges support from the ERC starting grant CALENDS. J.P.K. and T.D. acknowledge support from the LIDA ERC advanced grant. Funding for SDSS-III has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, and the U.S. Department of Energy Office of Science. The BOSS French Participation Group is supported by Agence Nationale de la Recherche under grant ANR-08-BLAN-0222. This equipment was funded by BIS National Einfrastructure capital grant ST/K00042X/1, STFC capital grant ST/H008519/1, and STFC DiRAC Operations grant ST/K003267/1 and Durham University. DiRAC is part of the National E-Infrastructure. V.G.P. acknowledges support from a European Research Council Starting Grant (DEGAS-259586) and the Science and Technology Facilities Council (grant number ST/F001166/1)

Published
2015
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7. Overview of the SDSS-IV MaNGA Survey: Mapping nearby Galaxies at Apache Point Observatory

Author

Lihwai Lin, Joel R. Brownstein, Francesco Belfiore, Kai Zhang, Shelley A. Wright, Nicholas MacDonald, Aleksandar M. Diamond-Stanic, Christy Tremonti, Aaron A. Dutton, José R. Sánchez-Gallego, Peter M. Frinchaboy, Robert C. Nichol, Dmitry Bizyaev, David R. Law, Michael R. Merrifield, Evelyn J. Johnston, Karun Thanjavur, Ting Xiao, John K. Parejko, Kevin Bundy, Paul Harding, Hai Fu, Karen L. Masters, David J. Schlegel, Kaike Pan, James E. Gunn, Roberto Maiolino, Daniel Thomas, Benjamin A. Thompson, Audrey Simmons, Remco C. E. van den Bosch, Mark A. Klaene, Lodovico Coccato, Matthias Steinmetz, Jeremy L. Tinker, David A. Wake, Karen Kinemuchi, Michele Cappellari, Richard M. McDermid, Viktor Malanushenko, Joss Bland-Hawthorn, Charlie Conroy, Guillermo A. Blanc, Michael R. Blanton, David Wilkinson, Sebastián F. Sánchez, Elena Malanushenko, Cheng Li, Brian Cherinka, Jesús Falcón-Barroso, Anne-Marie Weijmans, Alexie Leauthaud, Carles Badenes, Claudia Maraston, James Etherington, Matthew A. Bershady, Kyle B. Westfall, Vladimir Avila-Reese, Alfonso Aragón-Salamanca, Johan H. Knapen, Renbin Yan, Niv Drory, Oliver Steele, Guinevere Kauffmann, Daniel Oravetz, Shude Mao, Nell Byler, Eric Emsellem, Kapteyn Astronomical Institute, and University of St Andrews. School of Physics and Astronomy

Subjects
Cosmology and Gravitation, Stellar mass, astro-ph.GA, media_common.quotation_subject, FOS: Physical sciences, Context (language use), Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Surveys, Luminosity, surveys, Observatory, QB Astronomy, QC, Astrophysics::Galaxy Astrophysics, QB, media_common, Physics, Star formation, imaging spectroscopy [Techniques], general [Galaxies], Astronomy and Astrophysics, evolution [Galaxies], Astrophysics - Astrophysics of Galaxies, galaxies: general, Galaxy, Redshift, QC Physics, Space and Planetary Science, Sky, techniques: imaging spectroscopy, Astrophysics of Galaxies (astro-ph.GA), galaxies: evolution
Abstract

We present an overview of a new integral field spectroscopic survey called MaNGA (Mapping Nearby Galaxies at Apache Point Observatory), one of three core programs in the fourth-generation Sloan Digital Sky Survey (SDSS-IV) that began on 2014 July 1. MaNGA will investigate the internal kinematic structure and composition of gas and stars in an unprecedented sample of 10,000 nearby galaxies. We summarize essential characteristics of the instrument and survey design in the context of MaNGA's key science goals and present prototype observations to demonstrate MaNGA's scientific potential. MaNGA employs dithered observations with 17 fiber-bundle integral field units that vary in diameter from 12" (19 fibers) to 32" (127 fibers). Two dual-channel spectrographs provide simultaneous wavelength coverage over 3600-10300 A at R~2000. With a typical integration time of 3 hr, MaNGA reaches a target r-band signal-to-noise ratio of 4-8 (per A, per 2" fiber) at 23 AB mag per sq. arcsec, which is typical for the outskirts of MaNGA galaxies. Targets are selected with stellar mass greater than 1e9 Msun using SDSS-I redshifts and i-band luminosity to achieve uniform radial coverage in terms of the effective radius, an approximately flat distribution in stellar mass, and a sample spanning a wide range of environments. Analysis of our prototype observations demonstrates MaNGA's ability to probe gas ionization, shed light on recent star formation and quenching, enable dynamical modeling, decompose constituent components, and map the composition of stellar populations. MaNGA's spatially resolved spectra will enable an unprecedented study of the astrophysics of nearby galaxies in the coming 6 yr., 26 pages, to be published in ApJ, instrumentation description presented in Drory et al

Published
2015
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8. Redshift evolution of the dynamical properties of massive galaxies from SDSS-III/BOSS

Author

Jonas Johansson, Audrey Simmons, Janine Pforr, Joel R. Brownstein, Yanmei Chen, Alexie Leauthaud, Garrett Ebelke, Alessandra Beifiori, David A. Wake, Kaike Pan, Claudia Maraston, Donald P. Schneider, Roberto P. Saglia, Dmitry Bizyaev, Robert Senger, Viktor Malanushenko, Howard Brewington, Alaina Shelden, Elena Malanushenko, Karen L. Masters, Adam S. Bolton, Ralf Bender, Daniel Thomas, Robert C. Nichol, Rita Tojeiro, Stephanie A. Snedden, Ramin A. Skibba, Daniel Oravetz, Oliver Steele, and University of St Andrews. School of Physics and Astronomy

Subjects
Cosmology and Gravitation, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Stellar mass, formation [galaxies], Dark matter, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, cD, elliptical and lenticular [Galaxies], kinematics and dynamics [galaxies], Galaxy formation and evolution, QB Astronomy, Astrophysics::Solar and Stellar Astrophysics, QC, Astrophysics::Galaxy Astrophysics, evolution [galaxies], QB, Line (formation), Physics, Astronomy and Astrophysics, Radius, Astrophysics - Astrophysics of Galaxies, Redshift, Galaxy, QC Physics, Boss, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), Astrophysics::Earth and Planetary Astrophysics, elliptical and lenticular, cD [galaxies], high-redshift [galaxies], Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We study the redshift evolution of the dynamical properties of ~180,000 massive galaxies from SDSS-III/BOSS combined with a local early-type galaxy sample from SDSS-II in the redshift range 0.12sigma significance. By combining our sample with high-redshift literature data we find that this evolution of the dynamical to stellar mass ratio continues beyond z~0.7 up to z>2 as Mdyn/Mstar~ (1+z)^{-0.30+/- 0.12} further strengthening the evidence for an increase of Mdyn/Mstar with cosmic time. This result is in line with recent predictions from galaxy formation simulations based on minor merger driven mass growth, in which the dark matter fraction within the half-light radius increases with cosmic time., Comment: 26 pages, 17 figures, 5 tables. Accepted for publication in The Astrophysical Journal

Published
2014
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9. Galaxy And Mass Assembly : evolution of the Hα luminosity function and star formation rate density up to z < 0.35

Author

Aaron S. G. Robotham, Michael J. I. Brown, Scott M. Croom, Madusha Gunawardhana, Simon P. Driver, Steven P. Bamford, Matthew Colless, Angel R. Lopez-Sanchez, Lingyu Wang, Daniel Thomas, Sarah Brough, Andrew M. Hopkins, Caroline Foster, Michael J. Drinkwater, Matt S. Owers, Jonathan Bland-Hawthorn, David Heath Jones, Maritza A. Lara-López, Ivan K. Baldry, Rob Sharp, Edward N. Taylor, J. H. Y. Ching, Lee S. Kelvin, Matthew Prescott, Peder Norberg, Martin Meyer, Amanda E. Bauer, Michelle E. Cluver, Jonathan Loveday, Oliver Steele, and Jochen Liske

Subjects
Active galactic nucleus, media_common.quotation_subject, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, interactions [Galaxies], Surveys, Luminosity, starburst. [Galaxies], Apparent magnitude, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Galaxy Astrophysics, Luminosity function (astronomy), media_common, Physics, Star formation, Astronomy, Astronomy and Astrophysics, evolution [Galaxies], formation [Galaxies], luminosity function [Galaxies], Galaxy, Space and Planetary Science, Sky, Mass function, Gamma-ray burst, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Measurements of the low-z Halpha luminosity function have a large dispersion in the local number density of sources, and correspondingly in the SFR density. The possible causes for these discrepancies include limited volume sampling, biases arising from survey sample selection, different methods of correcting for dust obscuration and AGN contamination. The Galaxy And Mass Assembly (GAMA) survey and Sloan Digital Sky Survey (SDSS) provide deep spectroscopic observations over a wide sky area enabling detection of a large sample of star-forming galaxies spanning 0.001, Comment: 27 pages, 20 figures, accepted for publication in MNRAS

Published
2013
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10. Stellar velocity dispersions and emission line properties of SDSS-III/BOSS galaxies

Author

Joel R. Brownstein, Benjamin A. Weaver, John K. Parejko, Donald P. Schneider, Jonas Johansson, A. Simmons, S. A. Snedden, Alessandra Beifiori, Alaina Shelden, Kaike Pan, Adam S. Bolton, Christy Tremonti, Johan Comparat, Howard Brewington, Renbin Yan, Oliver Steele, Viktor Malanushenko, Daniel Oravetz, Elena Malanushenko, Daniel Thomas, David A. Wake, D. V. Bizyaev, Jean-Paul Kneib, Janine Pforr, Claudia Maraston, Masayuki Tanaka, Gustav Stromback, Institute of cosmology and gravitation, University of Portsmouth, Laboratoire d'Astrophysique de Marseille (LAM), and 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)

Subjects
Cosmology and Gravitation, Active galactic nucleus, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Radio galaxy, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Disc galaxy, 01 natural sciences, 0103 physical sciences, Emission spectrum, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Luminous infrared galaxy, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Astronomy, Velocity dispersion, Astronomy and Astrophysics, Galaxy, Redshift, Space and Planetary Science, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We perform a spectroscopic analysis of 492,450 galaxy spectra from the first two years of observations of the Sloan Digital Sky Survey-III/Baryonic Oscillation Spectroscopic Survey (BOSS) collaboration. This data set has been released in the ninth SDSS data release, the first public data release of BOSS spectra. We show that the typical signal-to-noise ratio of BOSS spectra is sufficient to measure stellar velocity dispersion and emission line fluxes for individual objects. The typical velocity dispersion of a BOSS galaxy is 240 km/s, with an accuracy of better than 30 per cent for 93 per cent of BOSS galaxies. The distribution in velocity dispersion is redshift independent between redshifts 0.15 and 0.7, which reflects the survey design targeting massive galaxies with an approximately uniform mass distribution in this redshift interval. The majority of BOSS galaxies lack detectable emission lines. We analyse the emission line properties and present diagnostic diagrams using the emission lines [OII], Hbeta, [OIII], Halpha, and [NII] (detected in about 4 per cent of the galaxies). We show that the emission line properties are strongly redshift dependent and that there is a clear correlation between observed frame colours and emission line properties. Within in the low-z sample around 0.15, Comment: 15 pages, 9 figures, MNRAS submitted, referee's comments included

Published
2013
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11. Galaxy And Mass Assembly (GAMA): spectroscopic analysis

Author

Boris Häußler, Trevor J. Ponman, Vivienne Wild, Scott M. Croom, Alister W. Graham, Michael J. Drinkwater, Jonathan Bland-Hawthorn, David Heath Jones, L. van Waerbeke, Robert C. Nichol, R. De Propris, Matt J. Jarvis, Matthew Colless, Meiert W. Grootes, Barry F. Madore, Denis Hill, R. Proctor, Michael J. Hudson, E. Andrae, Shaun Cole, Angel R. Lopez-Sanchez, Mehmet Alpaslan, Samantha J. Penny, H Parkinson, Steven P. Bamford, Stephen M. Wilkins, J. Delhaize, William J. Sutherland, J. A. Vázquez-Mata, Ewan Cameron, T. Mcnaught-Roberts, Martin Meyer, Cristina Popescu, Matt S. Owers, Aaron S. G. Robotham, E. van Kampen, Ivan K. Baldry, Kevin A. Pimbblet, Michelle E. Cluver, Daniel Thomas, Konrad Kuijken, Anne E. Sansom, Michael J. I. Brown, Stephen Anthony Eales, D. Wijesinghe, Jonas Johansson, Jon Loveday, Nicholas Cross, Matthew Prescott, Richard J. Tuffs, N. K. Agius, Lister Staveley-Smith, Sarah Brough, Andrew M. Hopkins, Seb Oliver, Peder Norberg, Carlos S. Frenk, Madusha Gunawardhana, Simon P. Driver, L. Christodoulou, Maritza A. Lara-López, Caroline Foster, Loretta Dunne, Rob Sharp, Catherine Heymans, Edward N. Taylor, Mark Seibert, Steve Maddox, Amanda E. Bauer, Christopher J. Conselice, Jochen Liske, Oliver Steele, Elaine M. Sadler, J. H. Y. Ching, Steven Phillipps, Stephen J. Warren, Lee S. Kelvin, Isaac Roseboom, John A. Peacock, Simon Ellis, Claudia Maraston, Ben Hoyle, Science & Technology Facilities Council, and University of St Andrews. School of Physics and Astronomy

Subjects
Active galactic nucleus, Cosmology and Nongalactic Astrophysics (astro-ph.CO), FOS: Physical sciences, Astrophysics, F500, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Luminosity, symbols.namesake, Galaxy evolution, 0103 physical sciences, Galaxy formation and evolution, QB Astronomy, Astrophysics::Solar and Stellar Astrophysics, 010303 astronomy & astrophysics, Digital sky survey, Astrophysics::Galaxy Astrophysics, QB, Physics, Galaxy formation, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Balmer series, Astronomy and Astrophysics, Quasar, Redshift survey, evolution [Galaxies], formation [Galaxies], general. [Galaxies], Redshift, Galaxy, Space and Planetary Science, symbols, Astrophysics::Earth and Planetary Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The Galaxy And Mass Assembly (GAMA) survey is a multiwavelength photometric and spectroscopic survey, using the AAOmega spectrograph on the Anglo-Australian Telescope to obtain spectra for up to ~300000 galaxies over 280 square degrees, to a limiting magnitude of r_pet < 19.8 mag. The target galaxies are distributed over 0, Comment: 19 pages, 19 figures, accepted for publication in MNRAS

Published
2013

12. The Baryon Oscillation Spectroscopic Survey of SDSS-III

Author

Dan Long, Jean-Paul Kneib, Timothée Delubac, Ricardo Genova-Santos, Oliver Steele, Guinevere Kauffmann, Rupert A. C. Croft, Nicolás G. Busca, Will J. Percival, Marcio A. G. Maia, Tomer Tal, James Rich, Cullen H. Blake, Stephen A. Smee, Adam S. Bolton, Ashley J. Ross, Yiping Shu, Beatrice Jordan, Janine Pforr, Andreas A. Berlind, John K. Parejko, Kevin Bundy, Hayley Finley, Joel R. Brownstein, Johan Comparat, David J. Schlegel, Stephanie A. Snedden, Ian D. McGreer, Shirley Ho, D. Kirkby, Howard Brewington, Anže Slosar, James E. Gunn, Michael R. Blanton, Nao Suzuki, Christopher P. Ahn, Karen L. Masters, Fritz Stauffer, Licia Verde, Russell Owen, Jeremy L. Tinker, Jordi Miralda-Escudé, Anne Ealet, Éric Aubourg, M. Jordan Raddick, Nathalie Palanque-Delabrouille, Benjamin A. Weaver, Francisco Prada, Mark A. Klaene, Claudia G. Scóccola, Michael A. Strauss, Alina Streblyanska, Kaike Pan, Arnaud Borde, Craig Loomis, Adrian M. Price-Whelan, Natalia Connolly, Joe Huehnerhoff, Martin Makler, Daryl Haggard, Benjamin J. Weiner, Gong-Bo Zhao, Robert Pfaffenberger, A. Carnero, Martin White, Pasquier Noterdaeme, Antonio J. Cuesta, Jose Alberto Rubino-Martin, Stephen Bailey, Alessandra Beifiori, Patrick McDonald, Khee-Gan Lee, Jo Bovy, Nicholas P. Ross, Jean-Marc Le Goff, Francesco Montesano, Jon Brinkmann, Stephanie Escoffier, Matthew D. Olmstead, M. G. Watson, Natalie A. Roe, Michael A. Carr, Isabelle Pâris, Zheng Zheng, Rafael Rebolo, Gordon T. Richards, Hee-Jong Seo, Daniel J. Eisenstein, Britt Lundgren, Olga Mena, Yue Shen, Audrey Oravetz, Cameron K. McBride, Xiaohui Fan, Molly E. C. Swanson, Frances Cope, K. Honscheid, Graziano Rossi, Tracy Naugle, Matthew M. Pieri, David H. Weinberg, Robert H. Lupton, Viktor Malanushenko, Erin S. Sheldon, Michael Blomqvist, Donald P. Schneider, Luiz N. da Costa, Ben Harris, David W. Harris, Robert C. Nichol, Julian E. Bautista, James R. A. Davenport, Peter J. Brown, Saurav Dhital, Garrett Ebelke, Daniel Margala, Ignasi Pérez-Ràfols, Hong Guo, Robert H. Barkhouser, N. Filiz Ak, Demitri Muna, Scott F. Anderson, Andrew A. West, Elena Malanushenko, Patrick B. Hall, Alaina Shelden, Yanmei Chen, M. Vargas Magaña, Ariel G. Sánchez, William Carithers, Lado Samushia, Dmitry Bizyaev, Kyle S. Dawson, Christy Tremonti, Conor Sayres, Sebastián E. Nuza, Roland de Putter, Diana Holder, Sarah J. Schmidt, Eyal A. Kazin, Richard G. McMahon, Wendell P. Jordan, W. M. Wood-Vasey, Idit Zehavi, Andreu Font-Ribera, W. N. Brandt, Jean-Christophe Hamilton, Christophe Yèche, Patrick Petitjean, Daniel Oravetz, Nikhil Padmanabhan, Ismael Perez-Fournon, Antonio D. Montero-Dorta, Rita Tojeiro, David W. Hogg, Adam D. Myers, Daniel Thomas, Vaishali Bhardwaj, Matteo Viel, David A. Wake, Rachel Mandelbaum, Claudia Maraston, Constance M. Rockosi, Masayuki Tanaka, Marc Manera, University of St Andrews. School of Physics and Astronomy, APC - Cosmologie, AstroParticule et Cosmologie (APC (UMR_7164)), 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 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)-Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), 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), BOSS, 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)-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), Aix Marseille Université (AMU)-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)-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)-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, and 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)

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Surveys, 01 natural sciences, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Settore FIS/05 - Astronomia e Astrofisica, Observacions astronòmiques, 0103 physical sciences, Physical Sciences and Mathematics, observations [Cosmology], 010303 astronomy & astrophysics, Observations, Astrophysics::Galaxy Astrophysics, Physics, Cosmologia, 010308 nuclear & particles physics, Angular diameter distance, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Quasar, Cosmology and Extragalactic Astrophysics, Lyman-alpha forest, Redshift, Galaxy, Cosmology, Baryon, Boss, Space and Planetary Science, Astronomia, Baryon acoustic oscillations, Astronomical observations, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The Baryon Oscillation Spectroscopic Survey (BOSS) is designed to measure the scale of baryon acoustic oscillations (BAO) in the clustering of matter over a larger volume than the combined efforts of all previous spectroscopic surveys of large-scale structure. BOSS uses 1.5 million luminous galaxies as faint as i = 19.9 over 10,000 deg(2) to measure BAO to redshifts z < 0.7. Observations of neutral hydrogen in the Ly alpha forest in more than 150,000 quasar spectra (g < 22) will constrain BAO over the redshift range 2.15 < z < 3.5. Early results from BOSS include the first detection of the large-scale three-dimensional clustering of the Ly alpha forest and a strong detection from the Data Release 9 data set of the BAO in the clustering of massive galaxies at an effective redshift z = 0.57. We project that BOSS will yield measurements of the angular diameter distance d(A) to an accuracy of 1.0% at redshifts z = 0.3 and z = 0.57 and measurements of H(z) to 1.8% and 1.7% at the same redshifts. Forecasts for Ly alpha forest constraints predict a measurement of an overall dilation factor that scales the highly degenerate D-A(z) and H-1(z) parameters to an accuracy of 1.9% at z similar to 2.5 when the survey is complete. Here, we provide an overview of the selection of spectroscopic targets, planning of observations, and analysis of data and data quality of BOSS, The successful installation, commissioning, and operation of the Pierre Auger Observatory would not have been possible without the strong commitment and effort fromthe technical and administrative staff in Malarg¨ue. The authors are very grateful to the following agencies and organizations for financial support: Comisi´on Nacional de Energ´ıa At´omica, Fundaci ´on Antorchas, Gobierno De La Provincia de Mendoza, Municipalidad de Malarg¨ue, NDM Holdings and Valle Las Le˜nas, in gratitude for their continuing cooperation over land access,Argentina; theAustralian ResearchCouncil;Conselho Nacional de Desenvolvimento Cient´ıfico e Tecnol´ogico (CNPq), Financiadora de Estudos e Projetos (FINEP), Fundacao de Amparo a Pesquisa do Estado de Rio de Janeiro (FAPERJ), Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Minist´erio de Ciˆencia e Tecnologia (MCT), Brazil; AVCR AV0Z10100502 and AV0Z10100522, GAAV KJB100100904, MSMT-CR LA08016, LG11044, MEB111003, MSM0021620859, LA08015, and TACR TA01010517, Czech Republic; Centre de Calcul IN2P3/CNRS, CentreNational de la Recherche Scientifique (CNRS), Conseil R´egional Ile-de- France, D´epartement Physique Nucleaire et Corpusculaire (PNC-IN2P3/CNRS), D´epartement Sciences de l’Univers (SDU-INSU/CNRS), France; Bundesministerium fur Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Finanzministerium Baden-W¨urttemberg, Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Ministerium fur Wissenschaft und Forschung, Nordrhein-Westfalen, Ministerium f¨ur Wissenschaft, Forschung und Kunst, Baden-W¨urttemberg, Germany; Istituto Nazionale di Fisica Nucleare (INFN), Ministero dell’Istruzione, dell’Universita e della Ricerca (MIUR), Italy; Consejo Nacional de Ciencia y Tecnolog´ıa (CONACYT), Mexico; Ministerie van Onderwijs, Cultuur en Wetenschap, Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Stichting voor Fundamenteel Onderzoek der Materie (FOM), The Netherlands; Ministry of Science and Higher Education, Grants no. N N202 200239 and N N202 2038, Poland; Fundacao para a Ciˆencia e a Tecnologia, Portugal; Ministry for Higher Education, Science, and Technology, Slovenian Research Agency, Slovenia; Comunidad de Madrid, Consejer´ıa de Educaci´on de la Comunidad de Castilla La Mancha, FEDER funds, Ministerio de Ciencia e Innovaci´on and Consolider- Ingenio 2010 (CPAN), Xunta de Galicia, Spain; Science and Technology Facilities Council, UK; Department of Energy, Contract nos. DE-AC02-07CH11359 and DEFR02- 04ER41300, National Science Foundation, Grant no. 0450696, The Grainger Foundation, USA; NAFOSTED, Vietnam; ALFA-EC/HELEN and UNESCO.

Published
2013
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13. The Ninth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Baryon Oscillation Spectroscopic Survey

Author

Christopher P. Ahn, Rachael Alexandroff, Carlos Allende Prieto, Scott F. Anderson, Timothy Anderton, Brett H. Andrews, Éric Aubourg, Stephen Bailey, Eduardo Balbinot, Rory Barnes, Julian Bautista, Timothy C. Beers, Alessandra Beifiori, Andreas A. Berlind, Vaishali Bhardwaj, Dmitry Bizyaev, Cullen H. Blake, Michael R. Blanton, Michael Blomqvist, John J. Bochanski, Adam S. Bolton, Arnaud Borde, Jo Bovy, W. N. Brandt, J. Brinkmann, Peter J. Brown, Joel R. Brownstein, Kevin Bundy, N. G. Busca, William Carithers, Aurelio R. Carnero, Michael A. Carr, Dana I. Casetti-Dinescu, Yanmei Chen, Cristina Chiappini, Johan Comparat, Natalia Connolly, Justin R. Crepp, Stefano Cristiani, Rupert A. C. Croft, Antonio J. Cuesta, Luiz N. da Costa, James R. A. Davenport, Kyle S. Dawson, Roland de Putter, Nathan De Lee, Timothée Delubac, Saurav Dhital, Anne Ealet, Garrett L. Ebelke, Edward M. Edmondson, Daniel J. Eisenstein, S. Escoffier, Massimiliano Esposito, Michael L. Evans, Xiaohui Fan, Bruno Femenía Castellá, Emma Fernández Alvar, Leticia D. Ferreira, N. Filiz Ak, Hayley Finley, Scott W. Fleming, Andreu Font-Ribera, Peter M. Frinchaboy, D. A. García-Hernández, A. E. García Pérez, Jian Ge, R. Génova-Santos, Bruce A. Gillespie, Léo Girardi, Jonay I. González Hernández, Eva K. Grebel, James E. Gunn, Hong Guo, Daryl Haggard, Jean-Christophe Hamilton, David W. Harris, Suzanne L. Hawley, Frederick R. Hearty, Shirley Ho, David W. Hogg, Jon A. Holtzman, Klaus Honscheid, J. Huehnerhoff, Inese I. Ivans, Željko Ivezić, Heather R. Jacobson, Linhua Jiang, Jonas Johansson, Jennifer A. Johnson, Guinevere Kauffmann, David Kirkby, Jessica A. Kirkpatrick, Mark A. Klaene, Gillian R. Knapp, Jean-Paul Kneib, Jean-Marc Le Goff, Alexie Leauthaud, Khee-Gan Lee, Young Sun Lee, Daniel C. Long, Craig P. Loomis, Sara Lucatello, Britt Lundgren, Robert H. Lupton, Bo Ma, Zhibo Ma, Nicholas MacDonald, Claude E. Mack, Suvrath Mahadevan, Marcio A. G. Maia, Steven R. Majewski, Martin Makler, Elena Malanushenko, Viktor Malanushenko, A. Manchado, Rachel Mandelbaum, Marc Manera, Claudia Maraston, Daniel Margala, Sarah L. Martell, Cameron K. McBride, Ian D. McGreer, Richard G. McMahon, Brice Ménard, Sz. Meszaros, Jordi Miralda-Escudé, Antonio D. Montero-Dorta, Francesco Montesano, Heather L. Morrison, Demitri Muna, Jeffrey A. Munn, Hitoshi Murayama, Adam D. Myers, A. F. Neto, Duy Cuong Nguyen, Robert C. Nichol, David L. Nidever, Pasquier Noterdaeme, Sebastián E. Nuza, Ricardo L. C. Ogando, Matthew D. Olmstead, Daniel J. Oravetz, Russell Owen, Nikhil Padmanabhan, Nathalie Palanque-Delabrouille, Kaike Pan, John K. Parejko, Prachi Parihar, Isabelle Pâris, Petchara Pattarakijwanich, Joshua Pepper, Will J. Percival, Ismael Pérez-Fournon, Ignasi Pérez-Ràfols, Patrick Petitjean, Janine Pforr, Matthew M. Pieri, Marc H. Pinsonneault, G. F. Porto de Mello, Francisco Prada, Adrian M. Price-Whelan, M. Jordan Raddick, Rafael Rebolo, James Rich, Gordon T. Richards, Annie C. Robin, Helio J. Rocha-Pinto, Constance M. Rockosi, Natalie A. Roe, Ashley J. Ross, Nicholas P. Ross, Graziano Rossi, J. A. Rubiño-Martin, Lado Samushia, J. Sanchez Almeida, Ariel G. Sánchez, Basílio Santiago, Conor Sayres, David J. Schlegel, Katharine J. Schlesinger, Sarah J. Schmidt, Donald P. Schneider, Mathias Schultheis, Axel D. Schwope, C. G. Scóccola, Uros Seljak, Erin Sheldon, Yue Shen, Yiping Shu, Jennifer Simmerer, Audrey E. Simmons, Ramin A. Skibba, M. F. Skrutskie, A. Slosar, Flavia Sobreira, Jennifer S. Sobeck, Keivan G. Stassun, Oliver Steele, Matthias Steinmetz, Michael A. Strauss, Alina Streblyanska, Nao Suzuki, Molly E. C. Swanson, Tomer Tal, Aniruddha R. Thakar, Daniel Thomas, Benjamin A. Thompson, Jeremy L. Tinker, Rita Tojeiro, Christy A. Tremonti, M. Vargas Magaña, Licia Verde, Matteo Viel, Shailendra K. Vikas, Nicole P. Vogt, David A. Wake, Ji Wang, Benjamin A. Weaver, David H. Weinberg, Benjamin J. Weiner, Andrew A. West, Martin White, John C. Wilson, John P. Wisniewski, W. M. Wood-Vasey, Brian Yanny, Christophe Yèche, Donald G. York, O. Zamora, Gail Zasowski, Idit Zehavi, Gong-Bo Zhao, Zheng Zheng, Guangtun Zhu, Joel C. Zinn, APC - Cosmologie, Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), 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)-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), AstroParticule et Cosmologie (APC (UMR_7164)), 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), BOSS, Instituto de Astrofisica de Canarias (IAC), 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), Elon University [NC, USA], Department of Astronomy [Seattle], University of Washington [Seattle], The University of Notre Dame [Sydney], Apache point observatory, 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), Département de Physique des Particules (ex SPP) (DPhP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), 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, Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), 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), Unité Scientifique de la Station de Nançay (USN), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), 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 d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Universitat de Barcelona, Observatoire des Sciences de l'Univers en région Centre (OSUC), and Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Atles, Astrophysics, Surveys, 01 natural sciences, Astronomical spectroscopy, Via láctea, Observatory, Observacions astronòmiques, Physical Sciences and Mathematics, Astrophysics::Solar and Stellar Astrophysics, 010303 astronomy & astrophysics, ComputingMilieux_MISCELLANEOUS, media_common, Mapeamentos astronômicos, Physics, [PHYS]Physics [physics], Astrophysics::Instrumentation and Methods for Astrophysics, Atlases, Astrometry, Cosmology, atlases, Instrumentation and Methods for Astrophysics, Astrophysics::Earth and Planetary Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics, Astronomical observations, Cosmology and Gravitation, Cosmology and Nongalactic Astrophysics (astro-ph.CO), [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], media_common.quotation_subject, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, catalogs, surveys, Formacao de galaxias, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Settore FIS/05 - Astronomia e Astrofisica, 0103 physical sciences, Instrumentation and Methods for Astrophysics (astro-ph.IM), Spectrograph, Astrophysics::Galaxy Astrophysics, Cosmologia, 010308 nuclear & particles physics, Astronomy and Astrophysics, Quasar, Cosmology and Extragalactic Astrophysics, Espectroscòpia, Galaxy, Spectrum analysis, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Stars, Space and Planetary Science, Sky, Catalogs, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

The Sloan Digital Sky Survey III (SDSS-III) presents the first spectroscopic data from the Baryon Oscillation Spectroscopic Survey (BOSS). This ninth data release (DR9) of the SDSS project includes 535,995 new galaxy spectra (median z=0.52), 102,100 new quasar spectra (median z=2.32), and 90,897 new stellar spectra, along with the data presented in previous data releases. These spectra were obtained with the new BOSS spectrograph and were taken between 2009 December and 2011 July. In addition, the stellar parameters pipeline, which determines radial velocities, surface temperatures, surface gravities, and metallicities of stars, has been updated and refined with improvements in temperature estimates for stars with T_eff-0.5. DR9 includes new stellar parameters for all stars presented in DR8, including stars from SDSS-I and II, as well as those observed as part of the SDSS-III Sloan Extension for Galactic Understanding and Exploration-2 (SEGUE-2). The astrometry error introduced in the DR8 imaging catalogs has been corrected in the DR9 data products. The next data release for SDSS-III will be in Summer 2013, which will present the first data from the Apache Point Observatory Galactic Evolution Experiment (APOGEE) along with another year of data from BOSS, followed by the final SDSS-III data release in December 2014., 9 figures; 2 tables. Submitted to ApJS. DR9 is available at http://www.sdss3.org/dr9

Published
2012
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