Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-09-01
Astronomy and Astrophysics
Astrophysics
6 pages, 3 figures, to appear in online Proc. IAU Symp. 254, "The Galaxy Disk in Cosmological Context", Eds. J. Andersen, J. B
Scientific paper
Disk galaxies in compact galaxy groups exhibit a remarkable shortfall of neutral hydrogen compared to both isolated spirals and spirals in more loose groups, but the origin of this HI deficiency remains unclear. Based on a sample of highly HI deficient compact galaxy groups, here updated to also include HCG 58 and HCG 93, we summarise the first results of a multi-wavelength campaign aimed at understanding the processes responsible for modifying the HI content of galaxy disks in these environments. While tidal stripping, ram pressure stripping by hot intragroup gas, and star-formation induced strangulation could individually be affecting the ISM in some of the group members, these processes each face specific difficulties in explaining the inferred deficiency of HI for the sample as a whole. A complete picture of the mechanisms driving the ISM evolution in the disk galaxies of these groups has thus yet to emerge, but promising avenues for further progress in this field are briefly discussed on the basis of the present sample.
Borthakur Sanchayeeta
Ponman Trevor J.
Rasmussen Jorgen
Verdes-Montenegro Lourdes
Yun Min. S.
No associations
LandOfFree
The Evolution of Galaxy Disks in Dense Environments - Lessons from Compact Galaxy Groups does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Evolution of Galaxy Disks in Dense Environments - Lessons from Compact Galaxy Groups, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Evolution of Galaxy Disks in Dense Environments - Lessons from Compact Galaxy Groups will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-60547