publication . Article . Preprint . Other literature type . 2019

Galaxies in X-ray selected clusters and groups in Dark Energy Survey data – II. Hierarchical Bayesian modelling of the red-sequence galaxy luminosity function

David J. James; Tim Eifler; C. Vergara Cervantes; Martin Crocce; L. N. da Costa; Julian A. Mayers; A. A. Plazas; J. Song; Christopher J. Miller; A. Bermeo; ...
Open Access English
  • Published: 01 Sep 2019
  • Publisher: HAL CCSD
Using $\sim 100$ X-ray selected clusters in the Dark Energy Survey Science Verification data, we constrain the luminosity function (LF) of cluster red sequence galaxies as a function of redshift. This is the first homogeneous optical/X-ray sample large enough to constrain the evolution of the luminosity function simultaneously in redshift ($0.1<z<1.05$) and cluster mass ($13.5 \le \rm{log_{10}}(M_{200crit}) \sim< 15.0$). We pay particular attention to completeness issues and the detection limit of the galaxy sample. We then apply a hierarchical Bayesian model to fit the cluster galaxy LFs via a Schecter function, including its characteristic break ($m^*$) to a f...
arXiv: Astrophysics::Cosmology and Extragalactic Astrophysics
free text keywords: galaxies: clusters: general, galaxies: evolution, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Space and Planetary Science, Astronomy and Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Astrophysics of Galaxies, Clusters, Evolution, Galaxies, General – galaxies, /dk/atira/pure/subjectarea/asjc/3100/3103, /dk/atira/pure/subjectarea/asjc/1900/1912, clusters: general [galaxies], evolution [galaxies], Astronomy, Astrophysics and Cosmology, Astronomi, astrofysik och kosmologi, astro-ph.CO, astro-ph.GA, RCUK, STFC, AST-1138766, AST-1536171, QB, QC, Galáxias - Aglomerados, Galáxias - Evolução, Estrelas - Formação, Galaxies - Clusters, Galaxies - Evolution, Stars - Formation, galaxies: clusters: general – galaxies: evolution., Physics, Bayesian probability, Cluster (physics), Survey data collection, X-ray, Astrophysics, Dark energy, Luminosity function, Galaxy
Funded by
NSF| Collaborative Research: The Dark Energy Survey Data Management Operations
  • Funder: National Science Foundation (NSF)
  • Project Code: 1138766
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
Testing the Dark Energy Paradigm and Measuring Neutrino Mass with the Dark Energy Survey
  • Funder: European Commission (EC)
  • Project Code: 291329
  • Funding stream: FP7 | SP2 | ERC
Understanding the Origin of Cosmic Structure
  • Funder: European Commission (EC)
  • Project Code: 306478
  • Funding stream: FP7 | SP2 | ERC
Capitalizing on Gravitational Shear
  • Funder: European Commission (EC)
  • Project Code: 240672
  • Funding stream: FP7 | SP2 | ERC
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