Does a Spiral-Only Compact Group have Diffuse Gas?

Details Does a Spiral-Only Compact Group have Diffuse Gas? Does a Spiral-Only Compact Group have Diffuse Gas?

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1323o&link_type=abstract

Chandra Proposal ID #04800913

Computer Science

Chandra Proposal Id #04800913

Scientific paper

The possible absence of diffuse X-rays in compact groups with only spiral members, inferred from the ROSAT observations, would have great impacts on our understanding of galaxy formation and evolution. With our proposed ACIS-S3 observation of HCG80, we aim at placing severe constraints on the presence or absence of the diffuse intragroup gas. The positive detection will not only prove the reality of the bound system but also allow us to probe its internal structure. The negative detection will point to either that the real group is always associated with an early-type galaxy, or that the X-ray emission is preferentially suppressed in spiral-only groups. In either case, we will also be able to study the X-ray morphologies of the member spirals.

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