The Nature of the Large Scale X-ray Emission around Abell Clusters

Details The Nature of the Large Scale X-ray Emission around Abell Clusters The Nature of the Large Scale X-ray Emission around Abell Clusters

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aas...191.5303m&link_type=abstract

American Astronomical Society, 191st AAS Meeting, #53.03; Bulletin of the American Astronomical Society, Vol. 29, p.1301

Astronomy and Astrophysics

Astronomy

Scientific paper

Soltan et al. (1996) found a significant positive component extending up to several degrees in their angular cross-correlation function (CCF) between the ROSAT All-Sky Survey (RASS) diffuse soft X-ray (E ~ 1keV) map and Abell clusters. To explain this, one model they have suggested consists of a 20h50(-1) Mpc-scale X-ray emitting hot gas halo associated with each Abell cluster. In order to constrain the nature of this extended component, we have made CCF studies between Abell clusters and hard X-ray maps observed with HEAO-1 A2 as well as the microwave map observed with COBE DMR. Our preliminary analysis shows that there also exists an extended component in the hard X-ray - Abell cluster CCF at a similar scale, indicating that the spectrum of the extended component is harder than a thermal spectrum for gas temperatures of typical clusters. A robust upper limit to the Sunyaev-Zel'dovich decrement set by the COBE DMR - Abell cluster CCF excludes an extended gas halo model with temperatures kT>1 keV. Combining these results, we can rule out any gas origin with a smooth profile for the extended component. A possibility consistent with the data is that X-ray emitting field AGNs clustered with Abell clusters give rise to the extended CCF signal.

Affiliated with

Also associated with

No associations

Rating

The Nature of the Large Scale X-ray Emission around Abell 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 The Nature of the Large Scale X-ray Emission around Abell Clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Nature of the Large Scale X-ray Emission around Abell Clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1174520