Galactic disc column density by maximum likelihood

Details Galactic disc column density by maximum likelihood Galactic disc column density by maximum likelihood

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.244...25g&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 244, May 1, 1990, p. 25-28.

Statistics

Computation

55

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

Scientific paper

The method of maximum likelihood is applied to the K dwarf tracer data and galactic-rotation 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.

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