Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-08-07
Astronomy and Astrophysics
Astrophysics
32 pages - 10 figures, Accepted for publication in Astronomical Journal
Scientific paper
10.1086/300621
We present kinematic observations of H$\alpha$ emission for two early-type galaxies and one disk system, members of the Hickson compact group 90 (HCG 90) obtained with a scanning Fabry-Perot interferometer and samplings of 16 $km$ $s^{-1}$ and 1$\arcsec$. Mapping of the gas kinematics was possible to $\sim$ 2 r$_{eff}$ for the disk galaxy N7174 and to $\sim$ 1.3 r$_{eff}$ and $\sim$ 1.7 r$_{eff}$ for the early-type galaxies N7176 and N7173 respectively. Evidence for ongoing interaction was found in the properties of the warm gas of the three galaxies, some of which do not have stellar counterparts. We suggest the following evolutionary scenario for the system. H90d is the warm gas reservoir of the group in process of fueling H90b with gas. H90c and d have experienced past interaction with gas exchange. The gas acquired by H90c has already settled and relaxed but the effects of the interaction can still be visible in the morphology of the two galaxies and their stellar kinematics. This process will possibly result in a major merger.
Amram Ph.
Boulesteix Jacques
de Oliveira Mendes Cl.
Plana Henri
No associations
LandOfFree
The kinematics of the warm gas in Hickson compact group of galaxies HCG 90 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 kinematics of the warm gas in Hickson compact group of galaxies HCG 90, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The kinematics of the warm gas in Hickson compact group of galaxies HCG 90 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-616796