Mass models of the galactic bulge derived from the distribution of OH/IR stars

Details Mass models of the galactic bulge derived from the distribution of OH/IR stars Mass models of the galactic bulge derived from the distribution of OH/IR stars

Oct 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a...102..347i&link_type=abstract

Astronomy and Astrophysics, vol. 102, no. 3, Oct. 1981, p. 347-350.

Astronomy and Astrophysics

Astrophysics

5

Galactic Bulge, Galactic Nuclei, Hydroxyl Emission, Infrared Stars, Stellar Mass, Stellar Models, Optical Thickness, Planetary Nebulae, Star Clusters, Velocity Distribution

Scientific paper

A mass model of the galactic bulge is developed for comparison with the observed distribution of OH/IR stars within one degree of the galactic center. The model considers spherical equal density surfaces, a semimajor axis of one kpc, a power law mass density distribution, and the bulge mass. Foreground masers, optical depth, and baseline effect are analyzed, and the velocity dispersion is determined to be in the 110-150 km/sec range. Using a power law exponent of 1.8, the bulge mass is calculated to be nine billion solar masses. A flattening of the OH star distribution with decreasing galactic latitude is taken to indicate an anisotropic velocity distribution due to mass asymmetry in the inner 50 pc of the bulge.

Affiliated with

Also associated with

No associations

Rating

Mass models of the galactic bulge derived from the distribution of OH/IR stars 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 Mass models of the galactic bulge derived from the distribution of OH/IR stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mass models of the galactic bulge derived from the distribution of OH/IR stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1468143