1. CODEX clusters. The Survey, the Catalog, and Cosmology of the X-ray Luminosity Function
- Author
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Nicolas Clerc, J. Patrick Henry, L. van Waerbeke, Florian Kaefer, Eli S. Rykoff, M. Costanzi, K. Kiiveri, Alexis Finoguenov, R. A. Dupke, Eduardo Rozo, Johan Comparat, Steffen Hagstotz, S. Damsted, Jochen Weller, V. Lindholm, G. Erfanianfar, C. C. Kirkpatrick, R. Capasso, J. P. Kneib, J. Ider Chitham, Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Department of Physics, Helsinki Institute of Physics, Particle Physics and Astrophysics, Finoguenov, A., Rykoff, E., Clerc, N., Costanzi, M., Hagstotz, S., Ider Chitham, J., Kiiveri, K., Kirkpatrick, C. C., Capasso, R., Comparat, J., Damsted, S., Dupke, R., Erfanianfar, G., Patrick Henry, J., Kaefer, F., Kneib, J. -P., Lindholm, V., Rozo, E., Van Waerbeke, L., and Weller, J.
- Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,Large-scale structure of Universe ,Astrophysics::High Energy Astrophysical Phenomena ,Population ,rosat ,FOS: Physical sciences ,Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Surveys ,01 natural sciences ,Cosmology ,Galaxy group ,galaxies ,0103 physical sciences ,ROSAT ,Galaxy formation and evolution ,spiders spectroscopy ,education ,010303 astronomy & astrophysics ,Galaxy cluster ,Astrophysics::Galaxy Astrophysics ,Luminosity function (astronomy) ,Physics ,education.field_of_study ,010308 nuclear & particles physics ,Astronomy and Astrophysics ,115 Astronomy, Space science ,Redshift ,sky survey ,Space and Planetary Science ,Catalogs ,mass calibration ,Catalog ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
Large area catalogs of galaxy clusters constructed from ROSAT All Sky Survey provide the base for our knowledge on the population of clusters thanks to the long-term multiwavelength efforts on their follow-up. Advent of large area photometric surveys superseding in depth previous all-sky data allows us to revisit the construction of X-ray cluster catalogs, extending the study to lower cluster masses and to higher redshifts and to provide the modelling of the selection function. We perform a wavelet detection of X-ray sources and make extensive simulations of the detection of clusters in the RASS data. We assign an optical richness to each of the 24,788 detected X-ray sources in the 10,382 square degrees of SDSS BOSS area, using redMaPPer version 5.2. We name this survey COnstrain Dark Energy with X-ray (CODEX) clusters. We show that there is no obvious separation of sources on galaxy clusters and AGN, based on distribution of systems on their richness. This is a combination of increasing number of galaxy groups and their selection as identification of an X-ray sources either by chance or due to groups hosting an AGN. To clean the sample, we use a cut on the optical richness at the level corresponding to the 10\% completeness of the survey and include it into the modelling of cluster selection function. We present the X-ray catalog extending to a redshift of 0.6 down to X-ray fluxes of $10^{-13}$ ergs s$^{-1}$ cm$^{-2}$. We provide the modelling of the sample selection and discuss the redshift evolution of the high end of the X-ray luminosity function (XLF). Our results on $z, Comment: 10 pages, 11 figures, A&A in press, part of SDSS DR16 data release
- Published
- 2020