Perturbation configurations in a two-fluid system of singular isothermal disks
Astrophysics
2009-11-07 v2
Abstract
We investigate properties of stationary aligned and unaligned spiral perturbation configurations in a composite system of gravitationally coupled stellar and gaseous singular isothermal disks (SIDs) using the two-fluid formalism. We obtain stationary perturbation solutions for aligned and unaligned spiral logarithmic configurations in such a composite SID system and derive analytically existence criteria for these solutions. In comparison with the similar problem of a single SID studied by Shu et al. (2000), there are now two possible sets of solutions owing to an additional SID.
Cite
@article{arxiv.astro-ph/0304270,
title = {Perturbation configurations in a two-fluid system of singular isothermal disks},
author = {Yu-Qing Lou and Yue Shen},
journal= {arXiv preprint arXiv:astro-ph/0304270},
year = {2009}
}
Comments
23 pages, 16 figures, accepted by MNRAS