Results 21 to 30 of about 151,210 (305)
Accretion Disk Evolution [PDF]
International Astronomical Union Colloquium, 1987 AbstractThree aspects of mass transfer instability models of dwarf novae are examined. The hydrodynamic development of instabilities in the secondary are examined within Roche geometry and shown to extend at least a few degrees away from the line of centres.
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Accretion Disk Instabilities [PDF]
International Astronomical Union Colloquium, 1993 AbstractBasic properties of accretion disk instabilities are summarized. We first explain the standard disk model by Shakura and Sunyaev. In this model, the dominant sources of viscosity are assumed to be chaotic magnetic fields and turbulence in gas flow, and the magnitude of viscosity is prescribed by so-called a model. It is then possible to build a
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Accretion and structure of radiating disks [PDF]
Astronomy & Astrophysics, 2012 Changes according to the version accepted by Astronomy & ...
Mach, Patryk, Malec, Edward
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Astrophysics and Space Science, 1999 LaTex, 6 pages with 1 postscript and 1 jpg figure, and 1 postscript table, To appear in the proc. of the Ringberg workshop on "Ultraluminous Galaxies: Monsters or Babies" (Ringberg castle, Sept.
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On the role of $$\varLambda $$ on accretion disks [PDF]
The European Physical Journal Plus, 2021 Comment: 6 pages, 1 fig., Eur. Phys.
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RINGED ACCRETION DISKS: INSTABILITIES [PDF]
The Astrophysical Journal Supplement Series, 2016 ABSTRACT We analyze the possibility that several instability points may be formed, due to the Paczyński mechanism of violation of mechanical equilibrium, in the orbiting matter around a supermassive Kerr black hole. We consider a recently proposed model of a ringed accretion disk, made up by several tori (rings) that can be corotating or
Pugliese, D., Stuchlík, Z.
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ON THE STRUCTURE OF ACCRETION DISKS WITH OUTFLOWS [PDF]
The Astrophysical Journal, 2011 24 pages, 20 figures.
Jiao, Cheng-Liang, Wu, Xue-Bing
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, 2017 Accretion disks are complex systems which are not yet entirely understood. Here a short overview is given of accretion disk theory, describing the disks, the thin disk approximation to simplify calculations and a description of the alpha-disk model.
Bergur Halldórsson 1993-
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ACCRETION OUTBURSTS IN CIRCUMPLANETARY DISKS [PDF]
The Astrophysical Journal, 2012 We describe a model for the long term evolution of a circumplanetary disk that is fed mass from a circumstellar disk and contains regions of low turbulence (dead zones). We show that such disks can be subject to accretion driven outbursts, analogous to outbursts previously modeled in the context of circumstellar disks to explain FU Ori phenomena ...
Lubow, S. H., Martin, R. G.
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Heating and cooling processes in disks [PDF]
, 2015 The research leading to these results has received funding from the European Union Seventh Framework Programme FP7-2011 under grant agreement no 284405.
Peter Woitke +2 more
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