Galactic disc column density by maximum likelihood
Abstract
The method of maximum likelihood is applied to the K dwarf tracer data and galacticrotation constraint as presented by Kuijken and Gilmore (1989), using exactly the same assumptions and data. The maximum likelihood estimate of the column density of the galactic disk is 54 + or  8 solar masses/sq pc, roughly 1 sigma higher than the KG estimate, 46 + or  9 solar masses/sq pc. These results depend only very weakly on assumptions about the ellipticity of the halo.
 Publication:

Monthly Notices of the Royal Astronomical Society
 Pub Date:
 May 1990
 Bibcode:
 1990MNRAS.244...25G
 Keywords:

 Computational Astrophysics;
 Galactic Rotation;
 Galactic Structure;
 Ellipticity;
 Halos;
 Maximum Likelihood Estimates;
 Astrophysics