Collisionless Boltzmann simulation of stellar disks having a small bulge

Details Collisionless Boltzmann simulation of stellar disks having a small bulge Collisionless Boltzmann simulation of stellar disks having a small bulge

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...302..611n&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 302, March 15, 1986, p. 611-616. Research supported by the Yukiyoshi Gakuen

Statistics

Computation

7

Collisionless Plasmas, Computational Astrophysics, Galactic Structure, Stellar Motions, Amplitude Distribution Analysis, Barred Galaxies, Boltzmann Distribution, Disks, Equilibrium Equations, Radii

Scientific paper

Dynamical behavior of an infinitely thin stellar disk is investigated for a bisymmetric perturbation by collisionless Boltzmann simulation. The disk considered has a small-mass (about 1/20 of that of the disk) bulge component with a small size and has two inner Lindblad resonances (ILRs). The disk does not show strong bar instability if stellar motion in the ILR region is treated with enough accuracy in simulation. If this is not done, however, the disk shows ordinal fierce bar instability.

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