The XMM‐Newton Wide‐Field Survey in the COSMOS Field: Statistical Properties of Clusters of Galaxies
Year: 2007
Type: article
Abstract: We present the results of a search for galaxy clusters in the first 36 XMM-Newton pointings on the Cosmic Evolution Survey (COSMOS) field. We reach a depth for a total cluster flux in the 0.5-2 keV band of 3 × 10 -15 ergs cm -2 s -1 , having one of the widest XMM-Newton contiguous raster surveys, covering an area of 2.1 deg 2 . Cluster candidates are identified through a wavelet detection of extended X-ray emission. Verification of the cluster candidates is done based on a galaxy concentration analysis in redshift slices of thickness 0.1-0.2 in redshift, using the multiband photometric catalog of the COSMOS field and restricting the search to z < 1.3 and i AB < 25. We identify 72 clusters and derive their properties based on the X-ray cluster scaling relations. A statistical description of the survey in terms of the cumulative log( N > S )- log S distribution compares well with previous results, although yielding a somewhat higher number of clusters at similar fluxes. The X-ray luminosity function of COSMOS clusters matches well the results of nearby surveys, providing a comparably tight constraint on the faint-end slope of α = 1.93 ± 0.04. For the probed luminosity range of (8 × 10 42 )-(2 × 10 44 ) ergs s -1 , our survey is in agreement with and adds significantly to the existing data on the cluster luminosity function at high redshifts and implies no substantial evolution at these luminosities to z = 1.3.
DOI: 10.1086/516577
Authors: A. Finoguenov, L. Guzzo, G. Hasinger, N. Z. Scoville, H. Aussel, H. Bohringer, M. Brusa, P. Capak, N. Cappelluti, A. Comastri, S. Giodini, R. E. Griffiths, C. Impey, A. M. Koekemoer, J.‐P. Kneib, A. Leauthaud, O. Le Fevre, S. Lilly, V. Mainieri, R. Massey, H. J. McCracken, B. Mobasher, T. Murayama, J. A. Peacock, I. Sakelliou, E. Schinnerer, J. D. Silverman, V. Smolčić, Y. Taniguchi, L. Tasca, J. E. Taylor, J. R. Trump, G. Zamorani
Institutions: Max Planck Institute for Extraterrestrial Physics, University of Maryland, Baltimore County, Brera Astronomical Observatory, University of Hawaiʻi at Mānoa, California Institute of Technology, University of Hawaii System, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, CEA Paris-Saclay, Osservatorio astronomico di Bologna, Carnegie Mellon University, University of Arizona, Space Telescope Science Institute, Laboratoire d’Astrophysique de Marseille, ETH Zurich, European Southern Observatory, Centre National de la Recherche Scientifique, Observatoire de Paris, Institut d'Astrophysique de Paris, Laboratoire d’Etudes du Rayonnement et de la Matière en Astrophysique et Atmosphères, Université Pierre-et-Marie-Curie, Tohoku University, Royal Observatory, University of Edinburgh, Max Planck Institute for Astronomy, Ehime University
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Funders: National Science Foundation, National Aeronautics and Space Administration, University of Maryland, Baltimore County, California Institute of Technology, Space Telescope Science Institute, Bundesministerium für Bildung und Forschung, Max-Planck-Gesellschaft, European Southern Observatory, Centre National de la Recherche Scientifique, National Astronomical Observatory of Japan, Office of International Science and Engineering
OpenAlex ID: W2109672483