Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981mnras.194..851s&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 194, Mar. 1981, p. 851-861. Research supported by the Natural Sciences
Astronomy and Astrophysics
Astronomy
21
Astronomical Models, Galactic Rotation, Galactic Structure, Milky Way Galaxy, Galactic Nuclei, Solar Velocity, Star Distribution, Stellar Mass
Scientific paper
Published 21 cm and CO data have been reanalyzed and indicate that the rotation curve of the Galaxy is essentially flat from within 1 kpc of the Galactic Center to the limit of the 21 cm disk at 15.5 kpc from the center. The velocity of rotation is 184 plus or minus 9 km/s. Mestel (1963) has shown that a rotation curve of this type can be produced by a mass distribution in the form of a thin disk with mass density per unit area roughly proportional to the reciprocal of the distance from the Galactic Center. Predictions of the resulting model are compared with observations.
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