Orbital characteristics of polar rings of galaxies

Details Orbital characteristics of polar rings of galaxies Orbital characteristics of polar rings of galaxies

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984aj.....89..975k&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 89, July 1984, p. 975-978.

Astronomy and Astrophysics

Astronomy

13

Elliptical Galaxies, Galactic Rotation, Orbital Mechanics, Angular Velocity, Ring Structures

Scientific paper

Recently, S0 and elliptical galaxies have been observed with polar rings of luminous material. Orbital characteristics are computed for these rings of material under the assumption that they are test particles in near closed orbits. Two potentials for the central galaxy are investigated. The vertical extension and velocity as a function of angle is set by the axial ratio of the potential. These calculated values, used in conjunction with observed values, can give insight into the presence and mass distribution of a possible massive halo.

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