Stability of disc galaxies and constraints on their mass-luminosity ratio

Details Stability of disc galaxies and constraints on their mass-luminosity ratio Stability of disc galaxies and constraints on their mass-luminosity ratio

Nov 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...206..253m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 206, no. 2, Nov. 1988, p. 253-257.

Statistics

Computation

6

Computational Astrophysics, Disk Galaxies, Galactic Structure, Mass To Light Ratios, Frequency Distribution, Galactic Rotation, Many Body Problem

Scientific paper

A new discussion of the Toomre stability parameter Q, frequently used in order to decide whether disks of various types of galaxies are stable, is presented. The influence of various factors on its radial variations is considered. A range of possible values of Q due to its dynamical properties connected with galactic morphology is suggested. Applications of the results to NGC 891, NGC 4244, and NGC 5907 are considered.

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