On Angular Momentum Transport in Convection-dominated Accretion Flows
نویسندگان
چکیده
منابع مشابه
The Magnetohydrodynamics of Convection-Dominated Accretion Flows
Radiatively inefficient accretion flows onto black holes are unstable due to both an outwardly decreasing entropy (“convection”) and an outwardly decreasing rotation rate (the “magnetorotational instability”, MRI). Using a linear magnetohydrodynamic stability analysis, we show that long-wavelength modes with λ/H ≫ β are primarily destabilized by the entropy gradient and that such “convective” m...
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The principles underlying a proposed class of black hole accretion models are examined. The flows are generally referred to as “convection-dominated,” and are characterized by inward transport of angular momentum by thermal convection and outward viscous transport, vanishing mass accretion, and vanishing local energy dissipation. In this paper we examine the viability of these ideas by explicit...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2002
ISSN: 0004-637X,1538-4357
DOI: 10.1086/344148