Theory of Bars in Disk Shaped Galaxies as Aligned Orbits

Details Theory of Bars in Disk Shaped Galaxies as Aligned Orbits Theory of Bars in Disk Shaped Galaxies as Aligned Orbits

Feb 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992sva....36....5p&link_type=abstract

Soviet Astronomy, Vol.36, NO.1/JAN-FEB, P. 5, 1992

Astronomy and Astrophysics

Astronomy

4

Scientific paper

Arguments are given for the formation of bars in SB galaxies as a result of instability of radial orbits. The simplest quantitative theory of that instability is used to calculate the characteristics of the central minibars found earlier in the numerical experiments of Athanassoula and Sellwood [Mon. Not. R. Astron. Soc. 221, 213(1986)] (but incorrectly interpreted by them). Possible ways of improving the theory are discussed. Some new approaches to numerical simulation of collisionless gravitating systems are suggested, in particular.

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