Whence comes the ellipsoidal distribution of star velocities

Details Whence comes the ellipsoidal distribution of star velocities Whence comes the ellipsoidal distribution of star velocities

Feb 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976scisn..19...35y&link_type=abstract

Scientia Sinica, vol. 19, Jan.-Feb. 1976, p. 35-44.

Mathematics

Probability

1

Astronomical Models, Protostars, Stellar Motions, Velocity Distribution, Anisotropy, Ellipsoids, Homogeneous Turbulence, Isotropic Turbulence, Probability Distribution Functions, Schwarzschild Metric

Scientific paper

It is argued that turbulent motion in the protogalactic cloud led to the ellipsoidal distribution of stellar velocities in the Galaxy. Continuum mechanics is used to analyze the motion of a gaseous mass of prestellar matter in the protogalactic cloud, and it is shown that the ellipsoidal velocity distribution was first imparted to protostars. The present anisotropy of the ellipsoidal distribution is attributed to the random gravitation of the stellar field. It is concluded that there was strong turbulence in the protogalactic cloud.

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