Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...123...98r&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 123, no. 1, June 1983, p. 98-100.
Astronomy and Astrophysics
Astrophysics
2
Elliptical Galaxies, Galactic Evolution, Galactic Structure, Mass Distribution, Star Distribution, Dark Matter, Space Density, Spiral Galaxies, Stellar Mass
Scientific paper
A scenario of galaxy formation is considered in which the halo and spheroidal components were formed by collapse and violent relaxation of a heavy protogalactic mass. Before the point of maximum collapse, most stars would be formed; with the dark component consisting of collisionless objects, essentially all the galactic matter would have violently relaxed. The dark matter would then be isothermally distributed, accounting for the deduced approximate proportionality of the halo mass density to the inverse square of the radius. If the velocity dispersion of stars in the spheroid is smaller than that of the halo objects, the density of the stars would be a steeper function of the radius. Some aspects of Lynden-Bell's (1967) theory of violent relaxation which may possibly account for these features in the distribution of matter in galaxies are outlined and illustrated for a model galaxy.
No associations
LandOfFree
The distribution of violently relaxed matter in galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The distribution of violently relaxed matter in galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The distribution of violently relaxed matter in galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1504117