Orbit segregation in evolving galaxies and clusters of galaxies

Details Orbit segregation in evolving galaxies and clusters of galaxies Orbit segregation in evolving galaxies and clusters of galaxies

Sep 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...216..690s&link_type=abstract

Astrophysical Journal, Part 1, vol. 216, Sept. 15, 1977, p. 690-693.

Astronomy and Astrophysics

Astrophysics

2

Galactic Clusters, Galactic Evolution, Galactic Rotation, Orbital Mechanics, Astronomical Models, Contraction, Density Distribution, Eccentricity, Galactic Nuclei, Gravitational Effects, Halos, Nonlinear Systems, Separation, Stellar Motions

Scientific paper

As a galaxy or a cluster of galaxies evolves, part of its mass may slowly become more centrally concentrated. This paper shows that such a nonhomologously changing nonlinear gravitational field tends to segregate orbits according to their eccentricity. It also tends to produce an extended halo distribution of orbits. Some astronomical implications of this effect are discussed briefly.

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