Morphology and 2D temperature distribution of the X-ray emitting gas in galaxy clusters.

Details Morphology and 2D temperature distribution of the X-ray emitting gas in galaxy clusters. Morphology and 2D temperature distribution of the X-ray emitting gas in galaxy clusters.

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997apl%26c..36..181b&link_type=abstract

Astrophysical Letters and Communications, Vol. 36, Nos. 1 - 6, p. 181 - 189

Other

Clusters Of Galaxies: X-Ray Images, Clusters Of Galaxies: Intergalactic Gas, Intracluster Gas: X Rays

Scientific paper

Very deep ROSAT observations of galaxy clusters reveal substructure on different levels: structure associated with bright galaxies, faint galaxies, or structure consistent with the merger of groups with the main cluster. Another indication of substructure is the deviation of the temperature of the intracluster gas from isothermality. Although the ROSAT PSPC only has a moderate spectral resolution and a small photon energy band pass, observations with a resulting high counting statistic can be used to determine two-dimensional temperature distributions in galaxy clusters. Compared with hydrodynamic simulations, these temperature maps give further evidence of the underlying merging processes.

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