Investigation of the shape of spiral paired galaxies

Details Investigation of the shape of spiral paired galaxies Investigation of the shape of spiral paired galaxies

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990azh....67..192s&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 67, Jan.-Feb. 1990, p. 192-194. In Russian.

Astronomy and Astrophysics

Astronomy

Galactic Structure, Interacting Galaxies, Spiral Galaxies, Astronomical Catalogs, Galactic Rotation, Gravitational Effects

Scientific paper

An expression for the value of disk elongation, epsilon(0) (the ratio of the minor axis to the major axis), is derived. The expression is dependent on mass and distance to the secondary companion and can be used in the spiral galaxy model for an elliptical disk with a quadratic gravitational potential. For spiral galaxies from interacting S-E pairs in the Karachentsev catalog, the mean value of epsilon(0) is 0.66. It is concluded that the shape of the disks of spiral paired galaxies is essentially different from that of disks in round galaxies.

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