Axisymmetric stability criterion for two gravitationally coupled singular isothermal discs

Abstract

Using the two-fluid formalism with the polytropic approximation, we examine the axisymmetric stability criterion for a composite system of gravitationally coupled stellar and gaseous singular isothermal discs (SIDs).

12 pages, 11 figures, accepted by MNRAS

References in corpus (6)

• Feedback, Disk Self-regulation and Galaxy Formation
• Non-axisymmetric, scale-free, razor-thin discs
• Singular Isothermal Disks: II. Nonaxisymmetric Bifurcations and Equilibria
• Circumnuclear Spiral Arms and Starburst Rings in Magnetized Barred Spiral Galaxies
• Perturbation configurations in a two-fluid system of singular isothermal disks
• Stationary Nonaxisymmetric Configurations of Magnetized Singular Isothermal Disks

Cited by in corpus (12)

• The effective stability parameter for two-component galactic discs: Is 1/Q ~ 1/Q_stars + 1/Q_gas ?
• A simple and accurate approximation for the Q stability parameter in multi-component and realistically thick discs
• The effect of ISM turbulence on the gravitational instability of galactic discs
• Stationary perturbation configurations in a composite system of stellar and coplanarly magnetized gaseous singular isothermal discs
• Gravitationally coupled scale-free discs
• Structures in a class of magnetized scale-free discs
• Global Perturbation Configurations in a Composite Disc System with an Isopedic Magnetic Field
• Axisymmetric stability criteria for a composite system of stellar and magnetized gaseous singular isothermal discs
• Global axisymmetric stability analysis for a composite system of two gravitationally coupled scale-free discs
• Global structures in a composite system of two scale-free discs with a coplanar magnetic field
• Scale-Free Thin Discs with an Isopedic Magnetic Field
• Global non-axisymmetric perturbation configurations in a composite disc system with an isopedic magnetic field: relation between dark matter halo and magnetic field