Nonaxisymmetricg‐Mode andp‐Mode Instability in a Hydrodynamic Thin Accretion Disk
نویسندگان
چکیده
منابع مشابه
Non-Axisymmetric g-Mode and p-Mode Instability in a Hydrodynamic Thin Accretion Disk
It has been suggested that quasi-periodic oscillations of accreting X-ray sources may relate to the modes named in the title. We consider nonaxisymmetric linear perturbations to an isentropic, isothermal, unmagnetized thin accretion disk. The radial wave equation, in which the number of vertical nodes (n) appears as a separation constant, admits a wave-action current that is conserved except, i...
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It has been suggested that quasi-periodic oscillations of accreting X-ray sources may relate to the modes named in the title. We idealize a thin accretion disk by means of the shearing sheet model and derive a wave equation for nonaxisymmetric perturbations. We show that the equation can be transformed into the Whittaker equation, which enables us to write down analytical solutions. For modes w...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2003
ISSN: 0004-637X,1538-4357
DOI: 10.1086/376695