On the Internal Absorption of Galaxy Clusters

Details On the Internal Absorption of Galaxy Clusters On the Internal Absorption of Galaxy Clusters

2000-01-07

arxiv.org/abs/astro-ph/0001124v1

Astronomy and Astrophysics

Astrophysics

accepted by the Astrophysical Journal

Scientific paper

10.1086/308900

A study of the cores of galaxy clusters with the Einstein SSS indicated the presence of absorbing material corresponding to 1E+12 Msun of cold cluster gas, possibly resulting from cooling flows. Since this amount of cold gas is not confirmed by observations at other wavelengths, we examined whether this excess absorption is present in the ROSAT PSPC observations of 20 bright galaxy clusters. For 3/4 of the clusters, successful spectral fits were obtained with absorption due only to the Galaxy, and therefore no extra absorption is needed within the clusters, in disagreement with the results from the Einstein SSS data for some of the same clusters. For 1/4 of the clusters, none of our spectral fits was acceptable, suggesting a more complicated cluster medium than the two-temperature and cooling flow models considered here. However, even for these clusters, substantial excess absorption is not indicated.

Affiliated with

Also associated with

No associations

Rating

On the Internal Absorption of Galaxy Clusters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with On the Internal Absorption of Galaxy Clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the Internal Absorption of Galaxy Clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-186264