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arXiv · 1007.4332

Self-consistent gas and stellar dynamics of disk galaxies: A problem of dark mass

A. V. Khoperskov·S. S. Khrapov
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Abstract

We present results of numerical modeling made for the galactic stellar and stellar-gas disk embedded in the spherical halo and bulge. The stellar disk is simulated by N-body system, the equations of hydrodynamics are solved by TVD-method. We used TREEcode-algorithm for calculation of a self-gravity in stellar and gaseous components. The possibility of bars birth in a hot stellar disk because of gravitational instability of a cold gas component is investigated. The conditions of occurrence lopsided-galaxies from a axisymmetric disk as a result of gravitational instability are explored. The self-consistent models of double bars are constructed and the dynamical stability of these structures is discussed.

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A. V. Khoperskov, S. S. Khrapov. 2010-07-25. Self-consistent gas and stellar dynamics of disk galaxies: A problem of dark mass. https://arxiv.org/abs/1007.4332

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