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Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
Astronomy Department Faculty Publication Series
Galaxies: interactions -- galaxies: kinematics and dynamics -- galaxies: evolution -- galaxies: structure -- galaxies: ISM -- radio lines: galaxies
Articles 1 - 1 of 1
Full-Text Articles in Physical Sciences and Mathematics
Where Is The Neutral Atomic Gas In Hickson Groups?, L Verdes-Montenegro, Min Yun, Ba Williams, Wk Huchtmeier, A Del Olmo, J Perea
Where Is The Neutral Atomic Gas In Hickson Groups?, L Verdes-Montenegro, Min Yun, Ba Williams, Wk Huchtmeier, A Del Olmo, J Perea
Astronomy Department Faculty Publication Series
We have analyzed the total HI contents of 72 Hickson compact groups of galaxies (HCGs) and the detailed spatial distributions and kinematics of HI within a subset of 16 groups using the high angular resolution observations obtained with the VLA in order to investigate a possible evolutionary scenario for these densest systems in the present day galaxy hierarchy. For the more homogeneous subsample of 48 groups, we found a mean HI deficiency of , which corresponds to 40% of the expected HI for the optical luminosities and morphological types of the member galaxies. The individual galaxies show larger degrees of …