Secular Instability in Quasi‐viscous Disk Accretion

Bhattacharjee, Jayanta K. ; Ray, Arnab K. (2007) Secular Instability in Quasi‐viscous Disk Accretion The Astrophysical Journal, 668 (1). pp. 409-416. ISSN 0004-637X

Full text not available from this repository.

Official URL:

Related URL:


A first-order correction in the α-viscosity parameter of Shakura & Sunyaev has been introduced in the standard inviscid and thin accretion disk. A linearized time-dependent perturbative study of the stationary solutions of this "quasi-viscous" disk reveals the development of a secular instability on large spatial scales. This qualitative feature is equally manifest for two different types of perturbative treatment: a standing wave on subsonic scales, as well as a radially propagating wave. The stability of the flow is restored when the viscosity disappears.

Item Type:Article
Source:Copyright of this article belongs to American Astronomical Society.
ID Code:133908
Deposited On:02 Jan 2023 08:23
Last Modified:02 Jan 2023 08:23

Repository Staff Only: item control page