Affiliation:
1. National Research Institute of Astronomy and Geophysics (NRIAG), 11421 Helwan, Cairo, Egypt
2. Sorbonne Universités, UPMC Univ. Paris 6 et CNRS, UMR 7095, Institut d’Astrophysique de Paris (IAP), 98bis Bd Arago, F-75014 Paris, France
3. Instituto de Astrofísica de Andalucía (IAA-CSIC), E-18008 Granada, Spain
Abstract
ABSTRACT
We present X-ray and optical properties of the optically confirmed galaxy cluster sample from the 3XMM/SDSS Stripe 82 cluster survey. The sample includes 54 galaxy clusters in the redshift range of 0.05–1.2, with a median redshift of 0.36. We first present the X-ray temperature and luminosity measurements that are used to investigate the X-ray luminosity–temperature relation. The slope and intercept of the relation are consistent with those published in the literature. Then, we investigate the optical properties of the cluster galaxies including their morphological analysis and the galaxy luminosity functions (GLFs). The morphological content of cluster galaxies is investigated as a function of cluster mass and distance from the cluster centre. No strong variation of the fraction of early- and late-type galaxies with cluster mass is observed. The fraction of early-type galaxies as a function of cluster radius varies as expected. The individual GLFs of red sequence galaxies were studied in the five ugriz bands for 48 clusters. The GLFs were then stacked in three mass bins and two redshift bins. Twenty clusters of the present sample are studied for the first time in X-rays, and all are studied for the first time in the optical range. Altogether, our sample appears to have X-ray and optical properties typical of ‘average’ cluster properties.
Funder
Science and Technology Development Fund
French Institute
Institut d'Astrophysique de Paris
National Centre for Space Studies
Ministry of Economy and Competitiveness
European Space Agency
National Aeronautics and Space Administration
Jet Propulsion Laboratory
California Institute of Technology
Alfred P. Sloan Foundation
National Science Foundation
U.S. Department of Energy
University of Arizona
Brazilian Participation Group
Brookhaven National Laboratory
University of Cambridge
University of Florida
French Participation Group
German Participation Group
Instituto de Astrofisica de Canarias
Johns Hopkins University
Lawrence Berkeley National Laboratory
New Mexico State University
New York University
Ohio State University
Pennsylvania State University
University of Portsmouth
Princeton University
University of Tokyo
University of Utah
Vanderbilt University
University of Virginia
University of Washington
Yale University
Publisher
Oxford University Press (OUP)
Subject
Space and Planetary Science,Astronomy and Astrophysics
Cited by
3 articles.
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