CL 1205+44: A fossil missing link?

Details CL 1205+44: A fossil missing link? CL 1205+44: A fossil missing link?

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004head....8.0214u&link_type=abstract

American Astronomical Society, HEAD meeting #8, #02.14; Bulletin of the American Astronomical Society, Vol. 36, p.905

Astronomy and Astrophysics

Astronomy

Scientific paper

This is a report of Chandra, XMM-Newton, HST, and ARC observations of an extended X-ray source at z = 0.33. The apparent member galaxies range from spiral to elliptical and are relatively red (i'-Ks about 3). We interpret this object to be a young fossil group which has somehow managed to suppress the star formation rate of the resident galaxies.This complex system sheds new light on the origin and evolution of galaxies in fossil groups and the relationship of fossil groups to poor clusters. The system also contains a central dominant double lobed radio galaxy which appears to be growing via the accretion of smaller galaxies. This work was supported in part by NASA guest observer grants for the Chandra and XMM observations.

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