Temperature Structure in Galaxy Clusters

Details Temperature Structure in Galaxy Clusters Temperature Structure in Galaxy Clusters

Jan 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998baas...30..769d&link_type=abstract

American Astronomical Society Meeting, 191, #130.12

Astronomy and Astrophysics

Astronomy

Scientific paper

We present preliminary results from our study of the small scale temperature structure in five galaxy clusters using data from the ASCA satellite. The continuous temperature maps have been corrected for ASCA's energy dependent point-spread-function (PSF) via a method developed by Churazov et al. (1996) and give a resolution of ~ 4 arcminutes. The existence of complex temperature structures in the X-ray emission from galaxy clusters is a strong indication of recent merger activity. The clusters shown here demonstrate the range of structure in a sample of 26 clusters of moderate to low redshift. Our results show significant temperature non-uniformities throughout the sample, even though the intensity profiles often appear relatively undisturbed, and indicate that merger activity is very common in galaxy clusters.

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