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Direct URCA Processes in Supernovae and Accretion Disks with Arbitrary Magnetic Field [PDF]
EPJ Web of Conferences, 2017 An effect of a magnetic field of an arbitrary strength on the beta-decay and reactions related with it by the crossing symmetry (the beta-processes) in supernovae and accretion disks around black holes is analyzed.
Ognev Igor
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Foundations of Black Hole Accretion Disk Theory
Living Reviews in Relativity, 2013 This review covers the main aspects of black hole accretion disk theory. We begin with the view that one of the main goals of the theory is to better understand the nature of black holes themselves.
P Chris Fragile
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Discovery of Two Different Full Disk Evolutionary Patterns of M-type T Tauri Stars with LAMOST DR8
The Astrophysical Journal, 2023 The full disk, full of gas and dust, determines the upper limit of planet masses, and its lifetime is critical for planet formation, especially for giant planets.
Hasitieer Haerken +4 more
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Dissipationless disk accretion [PDF]
Astronomy Reports, 2005 17 pages, 6 figures, published in Astronomy Reports, Vol.49, No.1, 2005, p.57 (submitted September 13, 2003). Unfortunately, we did not upload the paper to astro-ph before, but since the topic is now of interest we feel that the paper would benefit the ...
Bogovalov, Sergey V. +1 more
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Outflows and particle acceleration in the accretion disks of young stars [PDF]
EPJ Web of Conferences, 2019 Magneto-gas-dynamic (MGD) outflows from the accretion disks of T Tauri stars with fossil large-scale magnetic fileld are investigated. We consider two mechanisms of the outflows: rise of the magnetic flux tubes (MFT) formed in the regions of efficient ...
Khaibrakhmanov Sergey, Dudorov Alexander
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Symposium - International Astronomical Union, 1986 Flare activity on the sun may be attributed to the distortion of coronal magnetic field caused primarily by vortical (Shearing) photospheric motion. If an accretion disk is permeated by a magnetic field, the strong differential rotation of the disk will lead to similar stressing of the magnetosphere, and one may expect similar flare activity to occur ...
P. A. Sturrock, W. Yang
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Counterrotating Accretion Disks [PDF]
The Astrophysical Journal, 1996 7 pages, 3 figures, aas2pp4.sty, submitted to ...
Lovelace, R. V. E., Chou, Tom
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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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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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Accretion disk instabilities [PDF]
International Astronomical Union Colloquium, 1986 In this article we discuss two instabilities of stationary accretion disks which lead to an understanding of observed light variations in accretion disk systems, the dwarf novae and the rapid burster MXB 17030-335. The accretion disks in these systems avoid instability at the cost of stationarity and perform stable cycles in which sudden changes of the
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