2008/06/10 by S. M. Jia, H. Böhringer, H. Boehringer +6 · 19 citations
Medicine · Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics #Astrophysics and Cosmic Phenomena #Cluster (spacecraft) #Cooling flow #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy cluster #Intracluster medium #Medicine #Physics #RADIUS #Scaling #astro-ph
paper · pdf · doi:10.1051/0004-6361:200809699
published in Astronomy and Astrophysics 489(1), 1-9 (EDP Sciences) · 10 pages, 14 figures
arxiv created 2008/06/10 · openalex publication_date 2008/07/23 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present the X-ray properties of a massive cluster of galaxies (RXC J2228.6+2036 at ) using XMM-Newton data. The X-ray mass modeling is based on the temperature and density distributions of the intracluster medium derived using a deprojection method. We find that RXC J2228.6+2036 is a hot cluster ( keV) showing a cooling flow rate of yr-1 based on spectral fitting within the cooling flow radius (rcool = 147±10 kpc). The total cluster mass is M500 = (1.19±0.35)1015 and the mean gas mass fraction is fgas = 0.165±0.045 at r500 = 1.61±0.16 Mpc. We discuss the PSF-correction effect on the spectral analysis and find that, for the selected annular width, the PSF-corrected temperatures are consistent with those without PSF-correction. We observe remarkable agreement between X-ray and SZ results, which is of prime importance for future SZ surveys. RXC J2228.6+2036 obeys the empirical scaling relations found in general massive galaxy clusters (e.g. S–T, M–T, L–T and M–Y), after accounting for self-similar evolution.