The K-band Tully-Fisher Relation for Compact Groups

Details The K-band Tully-Fisher Relation for Compact Groups The K-band Tully-Fisher Relation for Compact Groups

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aspc..421..293t&link_type=abstract

Galaxies in Isolation: Exploring Nature Versus Nurture, proceedings of a conference held 12 to 15 May 2009 in Granada, Spain. Ed

Astronomy and Astrophysics

Astronomy

Scientific paper

We present results on the Tully-Fisher relation of galaxies in dense environments as compared to galaxies in the field. Our main result is that galaxies in Hickson compact groups (HCG) lie on the K-band Tully-Fisher relation defined by galaxies in less dense environments (GHASP survey) although with more scatter. However, some of the lowest mass systems (e.g. 49b) have a mass that is too low for their stellar luminosities. These galaxies could have their dark halos truncated due to interactions.

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