Secular instability in quasi-viscous disc accretion
| dc.contributor.author | Bhattacharjee, Jayanta K. | |
| dc.contributor.author | Ray, Arnab K. | |
| dc.date.accessioned | 2012-03-06T08:47:54Z | |
| dc.date.available | 2012-03-06T08:47:54Z | |
| dc.date.issued | 2007-07-12 | |
| dc.description.abstract | A first-order correction in the -viscosity parameter of Shakura& Sunyaev has been introduced in the standard inviscid and thin accretion disc. A linearised time-dependent perturbative study of the stationary solutions of this “quasi-viscous” disc leads to 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. Stability of the flow is restored when viscosity disappears. | en_US |
| dc.identifier.uri | http://hdl.handle.net/11007/676 | |
| dc.language.iso | en | en_US |
| dc.relation.ispartofseries | IUCAA Preprint;21/09 | |
| dc.subject | Accretion | en_US |
| dc.subject | Accretion disks— hydrodynamics— instabilities —methods | en_US |
| dc.subject | Analytica | en_US |
| dc.title | Secular instability in quasi-viscous disc accretion | en_US |
| dc.type | Article | en_US |