Tidal corrections to the orbital velocity of paired galaxies

Details Tidal corrections to the orbital velocity of paired galaxies Tidal corrections to the orbital velocity of paired galaxies

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pazh...10..181b&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 10, Mar. 1984, p. 181-183) Soviet Astronomy Letters (ISSN 0360-0327), vol. 10, Mar.-Apr

Astronomy and Astrophysics

Astronomy

2

Angular Velocity, Circular Orbits, Galactic Structure, Andromeda Galaxy, Gravitational Effects, Kepler Laws, Tides

Scientific paper

The effect of tidal forces on the orbital velocities of galaxies in pairs is investigated analytically. An expression for the deviation from the Keplerian point-mass angular velocity is derived for the case of circular orbits, and some numerical calculations are presented. The tidal corrections for the Magellanic Clouds (as a companion of the Galaxy) and for M32 (as a companion of M31), assuming that they lay in the galactic planes, are estimated as 2 percent and up to 15 percent, respectively.

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