The radius dependence of velocity dispersion in spiral galaxies

Details The radius dependence of velocity dispersion in spiral galaxies The radius dependence of velocity dispersion in spiral galaxies

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.256..166c&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 256, no. 1, May 1, 1992, p. 166-176. Research supported

Statistics

Computation

10

Astronomical Models, Computational Astrophysics, Spiral Galaxies, Anisotropy, Density Distribution, Galactic Structure, Radial Velocity

Scientific paper

The analytical model discussed in two previous papers is used to solve for the radial profile of the radial velocity dispersion on the plane of symmetry of an old galactic disk population. For a realistic total mass distribution consistent with an almost flat rotation curve and an exponential density profile, it is found that for relatively small radii a constant-anisotropy model provides a reasonable approximation to the solution (as found observationally by Lewis and Freeman), while for large R the solution is consistent with an approximately constant Toomre-Q profile, as suggested theoretically by Toomre and numerically by Sellwood and Carlberg. Possible applications of this result are discussed.

Affiliated with

Also associated with

No associations

Rating

The radius dependence of velocity dispersion in spiral 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 radius dependence of velocity dispersion in spiral galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The radius dependence of velocity dispersion in spiral galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1518608