The rotation curve in the outer region of the Galaxy

Details The rotation curve in the outer region of the Galaxy The rotation curve in the outer region of the Galaxy

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990kfnt....6...17g&link_type=abstract

Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 6, Sept.-Oct. 1990, p. 17-24. In Russian.

Statistics

Computation

4

Galactic Nuclei, Galactic Rotation, Milky Way Galaxy, Neutral Gases, Computational Astrophysics, Density Distribution, Hydrogen, Line Shape, Line Spectra

Scientific paper

In order to interpret the 21-cm line profiles in the R greater than R0 region of the Galaxy (where R0 is the distance of the sun from the Galactic center and R is the distance of the point considered from the Galactic center), corrections to the dependence of the neutral hydrogen density on spatial coordinates are introduced to account for the hydrogen-layer bending. The improved rotation curve shows an increase in the linear velocity up to a distance R = 1.7 R0 from the Galactic center; the increase is smaller, however, than without the above-mentioned corrections.

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