1. XMM-Newton observation of the Coma Galaxy cluster
- Author
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Simona Ghizzardi, M. Arnaud, T. P. Sasseen, W. T. Vestrand, R. Gastaud, Jonathan P. D. Mittaz, Doris M. Neumann, Bruno Altieri, David H. Lumb, Ulrich G. Briel, Nabila Aghanim, Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), and UCL
- Subjects
intergalactic medium [galaxies] ,Astrophysics::High Energy Astrophysical Phenomena ,large-scale structure of the Universe [Cosmology] ,FOS: Physical sciences ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astrophysics ,01 natural sciences ,Central region ,Spectral line ,Virial theorem ,[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] ,general [X-rays] ,0103 physical sciences ,Coma Cluster ,observations [Cosmology] ,Adiabatic process ,010303 astronomy & astrophysics ,Astrophysics::Galaxy Astrophysics ,Galaxy cluster ,Physics ,010308 nuclear & particles physics ,Astrophysics (astro-ph) ,dark matter [Cosmology] ,Astronomy and Astrophysics ,Accretion (astrophysics) ,Galaxy ,Space and Planetary Science - Abstract
We present a temperature map and a temperature profile of the central part (r < 20' or 1/4 virial radius) of the Coma cluster. We combined 5 overlapping pointings made with XMM/EPIC/MOS and extracted spectra in boxes of 3.5' X 3.5'. The temperature distribution around the two central galaxies is remarkably homogeneous (r, 7 pages, 8 figures, Accepted for publication in A&A (special Letter issue on XMM)
- Published
- 2001
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