@article{47074bb764cc4308abe505eaa9be16d4,
title = "Environmental dependence of the galaxy stellar mass function in the Dark energy Survey science verification data",
abstract = "Measurements of the galaxy stellar mass function are crucial to understand the formation of galaxies in the Universe. In a hierarchical clustering paradigm, it is plausible that there is a connection between the properties of galaxies and their environments. Evidence for environmental trends has been established in the local Universe. The Dark Energy Survey (DES) provides large photometric data sets that enable further investigation of the assembly of mass. In this study, we use ~3.2 million galaxies from the (South Pole Telescope) SPTEast field in the DES science verification (SV) data set. From grizY photometry, we derive galaxy stellar masses and absolute magnitudes, and determine the errors on these properties usingMonte Carlo simulations using the full photometric redshift probability distributions.We compute galaxy environments using a fixed conical aperture for a range of scales.We construct galaxy environment probability distribution functions and investigate the dependence of the environment errors on the aperture parameters. We compute the environment components of the galaxy stellar mass function for the redshift range 0.15 < z < 1.05. For z < 0.75, we find that the fraction of massive galaxies is larger in high-density environment than in lowdensity environments. We show that the low-density and high-density components converge with increasing redshift up to z ~ 1.0 where the shapes of the mass function components are indistinguishable. Our study shows how high-density structures build up around massive galaxies through cosmic time.",
keywords = "Galaxies: clusters: general, Galaxies: evolution, Galaxies: formation, Galaxies: photometry, Galaxies: statistics",
author = "J. Etherington and D. Thomas and C. Maraston and I. Sevilla-Noarbe and K. Bechtol and J. Pforr and P. Pellegrini and J. Gschwend and {Carnero Rosell}, A. and Maia, {M. A.G.} and {da Costa}, {L. N.} and A. Benoit-L{\'e}vy and Swanson, {M. E.C.} and Hartley, {W. G.} and Abbott, {T. M.C.} and Abdalla, {F. B.} and S. Allam and Bernstein, {R. A.} and E. Bertin and D. Brooks and E. Buckley-Geer and {Carrasco Kind}, M. and J. Carretero and Castander, {F. J.} and M. Crocce and Cunha, {C. E.} and S. Desai and P. Doel and Eifler, {T. F.} and Evrard, {A. E.} and {Fausti Neto}, A. and Finley, {D. A.} and B. Flaugher and P. Fosalba and J. Frieman and Gerdes, {D. W.} and D. Gruen and Gruendl, {R. A.} and G. Gutierrez and K. Honscheid and James, {D. J.} and K. Kuehn and N. Kuropatkin and O. Lahav and M. Lima and P. Martini and P. Melchior and R. Miquel and Mohr, {J. J.} and B. Nord and R. Ogando and Plazas, {A. A.} and Romer, {A. K.} and Rykoff, {E. S.} and E. Sanchez and V. Scarpine and M. Schubnell and Smith, {R. C.} and M. Soares-Santos and F. Sobreira and G. Tarle and V. Vikram and Walker, {A. R.} and Y. Zhang",
note = "Funding Information: Funding for the DES Projects has been provided by the U.S. Department of Energy, the U.S. National Science Foundation, theMinistry of Science and Education of Spain, the Science and Technology Facilities Council of theUnitedKingdom, theHigher Education Funding Council for England, the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign, the Kavli Institute of Cosmological Physics at the University of Chicago, the Center for Cosmology and Astro-Particle Physics at the Ohio State University, the Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University, Financiadora de Estudos e Projetos, Funda{\c c} {\~a}o Carlos Chagas Filho de Amparo {\`a} Pesquisa do Estado do Rio de Janeiro, Conselho Nacional de Desenvolvimento Cient{\'i}fico e Tecnol{\'o}gico and the Minist{\'e}rio da Ci{\^e}ncia, Tecnologia e Inova{\c c} {\~a}o, the Deutsche Forschungsgemeinschaft and the Collaborating Institutions in the Dark Energy Survey. The Collaborating Institutions are Argonne National Laboratory, the University of California at Santa Cruz, the University of Cambridge, Centro de Investigaciones Energ{\'e}ticas, Medioambientales y Tecnol{\'o}gicas-Madrid, the University of Chicago, University College London, the DES-Brazil Consortium, the University of Edinburgh, the Eidgen{\"o}ssische Technische Hochschule (ETH) Z{\"u}rich, Fermi National Accelerator Laboratory, the University of Illinois at Urbana-Champaign, the Institut de Ci{\`e}ncies de l'Espai (IEEC/CSIC), the Institut de F{\'i}sica d'Altes Energies, Lawrence Berkeley National Laboratory, the Ludwig-Maximilians Universit {\"a}t M{\"u}nchen and the associated Excellence Cluster Universe, the University of Michigan, the National Optical Astronomy Observatory, the University of Nottingham, The Ohio State University, the University of Pennsylvania, the University of Portsmouth, SLAC National Accelerator Laboratory, Stanford University, the University of Sussex and Texas A&M University. The DES data management system is supported by the National Science Foundation under grant number AST-1138766. The DES participants from Spanish institutions are partially supported by MINECO under grants AYA2012-39559, ESP2013-48274, FPA2013-47986 and Centro de Excelencia Severo Ochoa SEV-2012-0234. Research leading to these results has received funding from the European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013) including ERC grant agreements 240672, 291329 and 306478. We are grateful for the extraordinary contributions of our CTIO colleagues and the DECam Construction, Commissioning and Science Verification teams in achieving the excellent instrument and telescope conditions that have made this work possible. The success of this project also relies critically on the expertise and dedication of the DES Data Management group. Publisher Copyright: {\textcopyright} 2016 The Authors.",
year = "2017",
month = apr,
day = "1",
doi = "10.1093/mnras/stw3069",
language = "English (US)",
volume = "466",
pages = "228--247",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "1",
}