The gravo-magneto disc instability with a viscous dead zone
نویسندگان
چکیده
منابع مشابه
Secular instability in quasi-viscous disc accretion
A first-order correction in the α-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 p...
متن کاملSecular instability in a quasi-viscous accretion disc
A first-order correction in the α-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 p...
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Stephen W. Morris, Jonathan H.P. Dawes, Neil M. Ribe, and John R. Lister Department of Physics, University of Toronto, 60 St. George St., Toronto, Ontario, Canada M5S 1A7 2 DAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA 3 Dynamique des Fluides Géologiques, IPGP et Université de Paris-7, CNRS, Tour 14, 2, place Jussieu, 75005 Paris, France (...
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Rotating transonic flows are long known to admit standing or oscillating shocks and that the excess thermal energy in the post shock flow drives a part of the infalling matter as bipolar outflows. We compute massloss from a viscous advective disc. We show that the mass outflow rate decreases with increasing viscosity of the accretion disc, since viscosity weakens the centrifugal barrier that ge...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2013
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/stt1917