Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20921110d&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #211.10; Bulletin of the American Astronomical Society,
Astronomy and Astrophysics
Astronomy
Scientific paper
We report on our analysis of our BVI ACS images of Hickson Compact Group (HCG) 7, one of twelve that we will obtain as part of a Cycle 15 HST program. HCG 7 is at an early stage of compact group evolution, as evidenced by HI gas that is confined to the individual galaxies in the group. Nonetheless, it has evidence of considerable amounts of star formation in three of the four giant galaxies, one of which is significantly disturbed. This star formation is evident from our 3.6-24 micron Spitzer images of the group. We will present the point source and extended source photometry based on the ACS images, and will use these results to consider the early evolutionary history of this group.
Chandar Rupali
Charlton Jane C.
Durrell Patrick
English Jayanne
Gallagher Sarah C.
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