Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-06-21
Astronomy and Astrophysics
Astrophysics
19 pages, 19 figures, 3 tables, accepted for publication in the Bulletin of the Astronomical Society of India
Scientific paper
We present the results on the distribution and kinematics of H$\sc{i}$ gas with higher sensitivity and in one case of higher spectral resolution as well than reported earlier, of three irregular galaxies CGCG 097073, 097079 and 097087 (UGC 06697) in the cluster Abell 1367. These galaxies are known to exhibit long (50$-$75 kpc) tails of radio continuum and optical emission lines (H$\alpha$) pointing away from the cluster centre and arcs of starformation on the opposite sides of the tails. These features as well as the H{\sc i} properties, with two of the galaxies (CGCG 097073 and 097079) exhibiting sharper gradients in H{\sc i} intensity on the side of the tails, are consistent with the H{\sc i} gas being affected by the ram pressure of the intracluster medium. However the H{\sc i} emission in all the three galaxies extends to much smaller distances than the radio-continuum and H$\alpha$ tails, and are possibly still bound to the parent galaxies. Approximately 20$-$30 per cent of the H{\sc i} mass is seen to accumulate on the downstream side due to the effects of ram pressure.
Hota Ananda
Saikia D. J.
No associations
LandOfFree
An HI study of three long-tailed irregular galaxies in the cluster Abell1367 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 An HI study of three long-tailed irregular galaxies in the cluster Abell1367, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An HI study of three long-tailed irregular galaxies in the cluster Abell1367 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-192883