Results 1 to 10 of about 762 (219)
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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“Dark Matter” in Accretion Disks [PDF]
The Astrophysical Journal, 2008 Using Spitzer Space Telescope photometric observations of the eclipsing, interacting binary WZ Sge, we have discovered that the accretion disk is far more complex than previously believed. Our 4.5 and 8 micron time series observations reveal that the well known gaseous accretion disk is surrounded by an asymmetric disk of dusty material with a radius ...
Howell, Steve B. +6 more
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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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Thermal equilibria of accretion disks
The Astrophysical Journal, 1995 Submitted to ApJL July 1994.
Abramowicz, Marek A. +4 more
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The Spatial Structure of an Accretion Disk [PDF]
The Astrophysical Journal, 2008 Based on the microlensing variability of the two-image gravitational lens HE1104-1805 observed between 0.4 and 8 microns, we have measured the size and wavelength-dependent structure of the quasar accretion disk. Modeled as a power law in temperature, T proportional to R^-beta, we measure a B-band (0.13 microns in the rest frame) half-light radius of ...
Poindexter, Shawn +2 more
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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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Compact Objects and Accretion Disks [PDF]
, 2001 Recent developments in the spectropolarimetric study of compact objects, specifically black holes (stellar and massive) and neutron stars are reviewed. The lectures are organized around five topics: disks, jets, outflows, neutron stars and black holes.
Blandford, Roger +5 more
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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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Accretion-disk coronae in QSOs [PDF]
Publications of the Astronomical Society of the Pacific, 1991 Radiation pressure on gas in the hypothesized accretion disks of QSOs will result in a corona. Electrons of 340 kev, equivalent to Te∼3×108 K, may result in a significant. Compton optical depth for the implied mass loss rate. Comptonization of ultraviolet to 30 kev may result in contradiction to observations.
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, 1995 49p. To appear in XXI Canary Islands Winter School of Astrophysics, ed. T. Shahbaz, CUP (significantly improved, expanded and updated version of an earlier text)
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