Galactic spiral structure and the kinematics of H II regions

Details Galactic spiral structure and the kinematics of H II regions Galactic spiral structure and the kinematics of H II regions

Oct 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981pazh....7..543g&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 7, Sept. 1981, p. 543-546.) Soviet Astronomy Letters, vol. 7, Sept.-Oct. 1981, p. 303-3

Astronomy and Astrophysics

Astronomy

Density Wave Model, Galactic Rotation, Galactic Structure, H Ii Regions, Kinematics, Spiral Galaxies, Angular Velocity, Gravitational Fields, Radial Velocity

Scientific paper

The kinematics of H II regions is analyzed on the assumption that the Galaxy is subject to spiral density waves. H II zones are shown to populate the inner edge of the Sagittarius stellar spiral arm and the outer edge of the Perseus arm. The radius of the corotation circle is about 11 kpc; the group velocity of the density wave is directed away from the corotation circle.

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