Survey of Hard Point Sources in Groups of Galaxies

Details Survey of Hard Point Sources in Groups of Galaxies Survey of Hard Point Sources in Groups of Galaxies

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000cxo..prop..702f&link_type=abstract

Chandra Proposal ID #02800786

Physics

Chandra Proposal Id #02800786

Scientific paper

We detected excess diffuse-like hard X-ray emission in addition to thermal emission from several groups of galaxies with ASCA. If it is truly diffuse, it is indicated that high energy particles exist in the intragroup space. Existence of such particles is interesting in terms of heating and acceleration in clusters of galaxies, and moreover gives impacts on the dynamics in intracluster spaces. To confirm whether the hard X-ray emission in groups is truly diffuse or not, we propose to observe 6 nearby groups of galaxies to constrain the flux contribution of hard point sources, by utilizing Chandra imaging capability.

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