Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 336, Issue 1, Pages 299-308Publisher
OXFORD UNIV PRESS
DOI: 10.1046/j.1365-8711.2002.05743.x
Keywords
galaxies : clusters : general; galaxies : clusters : individual : Abell 2199; cooling flows; intergalactic medium; X-rays : galaxies
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We present results from an analysis of two Chandra observations of the rich, nearby galaxy cluster Abell 2199. We find evidence (having corrected for projection effects) for radial gradients in temperature and metallicity in the X-ray emitting gas: the temperature drops from kTsimilar to 4.2 keV at R = 200 kpc to 1.6 keV within R = 5 kpc of the centre. The metallicity rises from similar to0.3 solar at R = 200 kpc to similar to0.7 solar at R = 30 kpc before dropping to 0.3 solar within the central 5 kpc. We find evidence for structure in the surface brightness distribution associated with the central radio source 3C 338. No evidence is found for the gas having a large spread in temperature at any particular location despite the cooling time being short (<10(9) yr) within the central similar to 15 kpc. Heating and mass cooling rates are calculated for various assumptions about the state of the gas.
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