Spin angular momentum of tidally affected galaxies

Details Spin angular momentum of tidally affected galaxies Spin angular momentum of tidally affected galaxies

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.250..541n&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 250, June 1, 1991, p. 541-543.

Astronomy and Astrophysics

Astronomy

2

Angular Momentum, Galactic Rotation, Galactic Structure, Gravitational Effects, Astronomical Models, Galactic Mass, Perturbation Theory

Scientific paper

Numerical experiments have been performed to study the transfer of angular momentum to an initially non-rotating spherical galaxy as it undergoes a collision with a point mass perturber moving in a relative orbit of constant pericentric distance. The variation of the acquired spin of the galaxy with time is smooth in the case of open orbit encounters, whereas it is irregular in the case of bound orbit encounters. The induced rotation of the test galaxy is in the same sense as that of the initial orbital angular momentum of the pair.

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