Search for Fossil Groups using NVO Technologies

Details Search for Fossil Groups using NVO Technologies Search for Fossil Groups using NVO Technologies

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20911305s&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #113.05; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

Fossil groups exhibit extended X-ray halos similar to those in poor
clusters; however, in the optical they show a dominant luminous
elliptical galaxy surrounded by fainter companions, tantamount to Bautz-
Morgan I, I-II clusters. As anticipated in dynamical studies and high
resolution numerical simulations, it has been suggested that fossil groups
could be the end-product of the collapse of dense groups or poor clusters. We have cross-matched the SDSS and the ROSAT All-Sky Survey to search for fossil groups using National Virtual Observatory (NVO) technologies (e.g., OpenSkyQuery & SkyView). We have found a large number of fossil groups candidates, some of them have been included in a XMM-Newton observing proposal, in order to analyze in more detail the extended X-ray emission. We present preliminary results based on the analysis of archival data. This work was partly developed as an NVO Science Project during the latest NVO Summer School. Also this work was supported by FAPESP and CNPq.

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