The v_c-sigma_c relation in low mass and low surface brightness galaxies

Details The v_c-sigma_c relation in low mass and low surface brightness galaxies The v_c-sigma_c relation in low mass and low surface brightness galaxies

2006-09-11

arxiv.org/abs/astro-ph/0609286v1

Mon.Not.Roy.Astron.Soc.373:700-704,2006

Astronomy and Astrophysics

Astrophysics

Accepted for publication in MNRAS, 5 pages, 3 figures, 1 table

Scientific paper

10.1111/j.1365-2966.2006.11057.x

We present an updated investigation of the relation between large scale disk circular velocity, v_c, and bulge velocity dispersion, sigma_c. New bulge velocity dispersions are measured for a sample of 11 low surface brightness (LSB) and 7 high surface brightness (HSB) spiral galaxies for which v_c is known from published optical or HI rotation curves. We find that, while LSB galaxies appear to define the upper envelope of the region occupied by HSB galaxies (having relatively larger v_c for any given sigma_c), the distinction between LSB and HSB galaxies in the v_c-sigma_c plane becomes less pronounced for sigma_c <= 80 km/s. We conclude that either the scatter of the v_c-sigma_c relation is a function of v_c (and hence galaxy mass) or that the character of the v_c-sigma_c relation changes at v_c ~ 80 km/s. Some inplications of our findings are discussed.

Affiliated with

Also associated with

No associations

Rating

The v_c-sigma_c relation in low mass and low surface brightness galaxies 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 v_c-sigma_c relation in low mass and low surface brightness galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The v_c-sigma_c relation in low mass and low surface brightness galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-25117