SONIC-POINT INSTABILITY WITH A NEW REVISED VISCOSITY AND ISOTHERMAL ACCRETION DISC

Authors
YANG LT YANG PB WU SP WU XB
Citation
Lt. Yang et al., SONIC-POINT INSTABILITY WITH A NEW REVISED VISCOSITY AND ISOTHERMAL ACCRETION DISC, Monthly Notices of the Royal Astronomical Society, 279(2), 1996, pp. 669-672
Citations number
16
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Monthly Notices of the Royal Astronomical Society → ACNP
ISSN journal
00358711
Volume
279
Issue
2
Year of publication
1996
Pages
669 - 672
Database
ISI
SICI code
0035-8711(1996)279:2<669:SIWANR>2.0.ZU;2-U
Abstract
The stability of the sonic point in an isothermal accretion disc is ex amined for the case in which a new revised viscosity is adopted. From this viscosity, it follows that at a sonic point T-r phi = -2v Sigma O mega/(1 + 2C(s) tau/r). The results show that the sonic point is a sad dle and stable against small amplitude perturbations. Finally, we disc uss these results.