The thickness of thin stellar disks and the dark halo mass

Details The thickness of thin stellar disks and the dark halo mass The thickness of thin stellar disks and the dark halo mass

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pazh...17..884z&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 17, Oct. 1991, p. 884-890. In Russian. In Russian. In Russian.

Statistics

Computation

9

Galactic Mass, Halos, Many Body Problem, Stellar Structure, Astronomical Models, Computational Astrophysics

Scientific paper

It is shown that galaxies observed edge-on with visible axis ratios less than 0.1 have a geometric thickness which can be explained only by the presence of a massive dark halo. An analysis of the condition of stellar disk stability as well as results of N-body numerical galactic modeling indicate that the minimal relative thickness of a collisionless gravitating disk decreases with the relative halo mass.

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