Two more disk galaxies with global gas counterrotation

Details Two more disk galaxies with global gas counterrotation Two more disk galaxies with global gas counterrotation

2008-12-23

arxiv.org/abs/0812.4349v1

Astrophys.J.694:1550-1558,2009

Astronomy and Astrophysics

Astrophysics

8 pages, 8 EPS figures, accepted for publication in ApJ

Scientific paper

10.1088/0004-637X/694/2/1550

We report a discovery of extended counterrotating gaseous disks in early-type disk galaxies NGC 2551 and NGC 5631. To find them, we have undertaken complex spectral observations including integral-field spectroscopy for the central parts of the galaxies and long-slit deep spectroscopy to probe the external parts. The line-of-sight velocity fields have been constructed and compared to the photometric structure of the galaxies. As a result, we have revealed full-size counterrotating gaseous disks, the one coplanar to the stellar disk in NGC 2551 and the other inclined to the main stellar disk in NGC 5631. We suggest that we observe the early stages of minor-merger events which may be two different stages of the process of lenticular galaxy formation in rather sparse environments.

Affiliated with

Also associated with

No associations

Rating

Two more disk galaxies with global gas counterrotation 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 Two more disk galaxies with global gas counterrotation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two more disk galaxies with global gas counterrotation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-605751