X-ray emission from Stephan's Quintet and other compact groups

Details X-ray emission from Stephan's Quintet and other compact groups X-ray emission from Stephan's Quintet and other compact groups

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...284l..29b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 284, Sept. 15, 1984, p. L29-L33. Research supported

Astronomy and Astrophysics

Astrophysics

46

Galactic Clusters, X Ray Sources, High Temperature Gases, Intergalactic Media, Luminosity, Spectrum Analysis

Scientific paper

A search for X-ray emission from five compact groups of galaxies with the Einstein Observatory revealed detections from three groups. Soft, extended X-ray emission was observed in Stephan's Quintet, which is most likely caused by hot intracluster gas. This provides evidence for dynamical interaction among the group galaxies. X-ray emission from the group Arp 330 may also originate in hot intracluster gas. Stephan's Quintet and Arp 330 have the largest velocity dispersions among the groups studied, suggesting a correlation between high velocity and the release (or properties) of hot gas. X-ray emission from Arp 318 may originate in its member galaxies.

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