The distribution model of the velocity dispersion of stars within theGalaxy.

Details The distribution model of the velocity dispersion of stars within theGalaxy. The distribution model of the velocity dispersion of stars within theGalaxy.

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984acasn..25..142z&link_type=abstract

Acta Astron. Sin., Vol. 25, No. 2, p. 142 - 147

Astronomy and Astrophysics

Astronomy

Galaxy:Velocity Dispersion

Scientific paper

The variation of velocity dispersion in z-axis with r and z, namely the analytical expression of Cz = Cz(r, z) is obtained by direct integration. Besides, the variation of radial velocity dispersion with r and z is also obtained through the stability of the density wave in three-dimensional spiral galaxies and the equation of dispersion. The results show that theoretical values of Cr and Cz are in agreement with the observed values near the sun and also approach the values obtained by Huang et al. (1979).

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