An Axisymmetric Distribution Function for the Galactic Bulge

Details An Axisymmetric Distribution Function for the Galactic Bulge An Axisymmetric Distribution Function for the Galactic Bulge

1994-03-17

arxiv.org/abs/astro-ph/9403038v1

Astronomy and Astrophysics

Astrophysics

19 pages, 700 kb uu-encoded compressed postscript file, CfA preprint

Scientific paper

10.1086/175778

We describe a method for parameterizing two-integral distribution functions, based on triangular tesselations of the integral plane. We apply the method to the axisymmetric isotropic rotator model for the Galactic bulge of Kent~(1992), and compare the results with observations of proper motions in Baade's Window, and with radial velocity surveys. In spite of mounting evidence from surface photometry and from study of the gas kinematics that the Galactic bulge is not axisymmetric, the stellar kinematics in Baade's Window are very similar to those of an isotropic oblate rotator. Another field at large radius does not fit this model, though. In any case, the edge-on kinematics of a hot stellar population are a poor handle on the existence or otherwise of a bar.

Affiliated with

Also associated with

No associations

Rating

An Axisymmetric Distribution Function for the Galactic Bulge 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 Axisymmetric Distribution Function for the Galactic Bulge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An Axisymmetric Distribution Function for the Galactic Bulge will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-190476