Orbital configurations for gas in elliptical galaxies

Details Orbital configurations for gas in elliptical galaxies Orbital configurations for gas in elliptical galaxies

Apr 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...267l..19m&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 267, Apr. 1, 1983, p. L19-L23.

Astronomy and Astrophysics

Astrophysics

64

Elliptical Galaxies, Galactic Rotation, Galactic Structure, Interstellar Gas, Rotating Fluids, Cold Gas, Cosmic Dust, Galactic Evolution, Orbital Elements, Stellar Rotation

Scientific paper

The complete set of simple closed orbits in triaxial potentials is presented. We show that quasi-stable configurations for gas in nonrotating elliptical galaxies are more numerous than previously suggested, so that the observed orientation of a dust lane is not related in any simple way to a galaxy's intrinsic shape. However, measurements of the direction of rotation of both the stars and gas in rotating dust lane galaxies may show whether elliptical galaxies are generically axially symmetric or triaxial.

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