Other
Scientific paper
Dec 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...183.5304h&link_type=abstract
American Astronomical Society, 183rd AAS Meeting, #53.04; Bulletin of the American Astronomical Society, Vol. 25, p.1374
Other
Scientific paper
We have performed a joint fit to spectra taken with the HEAO1 A2 and Einstein SSS of 6 clusters of galaxies using models consisting of single and multiple temperature components. In all but one cluster, the data require more than one component. Five of the clusters are better fit by a 2-component Raymond and Smith model, or a cooling flow model plus a single Raymond and Smith model, than an isothermal model. In 4 of the clusters, we find evidence for cool gas outside of the cooling flow region. There are 3 temperature components: a temperature inversion in the central region, a hotter region with an emission weighted temperature which is higher than the isothermal temperature of the entire gas, and a cooler region with an emission weighted temperature, typically 1 keV. The relative emission integrals of the 3 components in the two detectors implies that the 3 components are at increasing radius. With these data, we find evidence for a higher abundance in the central region of one cluster though this may be due to the model used. However, we do find evidence for increased absorption in the central region of 2 cluster.
Henriksen Mark J.
Merrill W. E.
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