A consideration of velocity distribution within coronae of galaxies.

Details A consideration of velocity distribution within coronae of galaxies. A consideration of velocity distribution within coronae of galaxies.

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990bobeo.142...23n&link_type=abstract

Bulletin Astronomique de Belgrade, No. 142, p. 23 - 27

Astronomy and Astrophysics

Astronomy

Galactic Coronae: Velocity Distribution, Galactic Corona: Velocity Distribution

Scientific paper

Coronae of galaxies are assumed to be spherically symmetric, self-consistent and in a steady state. The velocity distribution is studied on the basis of the hydrodynamical equation through the ratio v¯t2/v¯r2 (transversal and radial velocity components, respectively). It is found that in the conditions supposed to occur in real galaxies the radial velocities prevail so that the fraction of the radial velocity in the total kinetic energy of the system attains even more than 50%. Applied to our Galaxy the results of the present paper suggest a value of the ratio mentioned above of a little bit greater than one at the galactocentric position of the Sun.

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