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Title: H I deficiency in groups: what can we learn from Eridanus?
Authors: Omar, A.
Keywords: galaxies: ISM
galaxies: interactions
galaxies: kinematics and dynamics
galaxies: evolution
galaxies: clusters: individual: Eridanus group
radio lines: galaxies
Issue Date: Sep-2004
Publisher: The Astronomical Society of India
Citation: Bulletin of the Astronomical Society of India, 2004, Vol.32, p239-245
Abstract: The HI content of the Eridanus group of galaxies is studied using the GMRT observations and the HIPASS data. A significant Hi deficiency up to a factor of 2 2 - 3 is observed in galaxies in the Eridanus group. The deficiency is found to be directly correlated with the projected galaxy density and inversely correlated with the line-of-sight radial velocity. It is suggested that the HI deficiency is due to tidal interactions. An important implication is that significant evolution of galaxies can take place in a group environment.
ISSN: 0304-9523
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Copyright: (2004) by the Astronomical Society of India.
Appears in Collections:Research Papers (A&A)

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