Results 291 to 300 of about 323,430 (318)
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Accretion disks in stellar X-ray sources
Space Science Reviews, 1982Frank Verbunt
exaly +3 more sources
The development of large-scale instability in Keplerian stellar accretion disks
Astronomy Reports, 2012Our previous studies of large-scale vortical flows arising in shear flows of stellar accretion disks with Keplerian azimuthal velocity distributions as a result of the development of small perturbations are continued. The development of large-scale instability in an accretion disk is investigated via mathematical modeling.
A. Y. Lugovskii, V. Chechetkin
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Accretion disks in compact stellar systems
, 1993Disk instabilities in stellar accretion disks, J. Cannizzo and F. Meyer angular momentum transport in low mass accretion disks, E.T. Vishniac emission lines from accretion disks, E.L. Robinson eclipse mapping of accretion disks, K. Horne disk atmospheres, G. Shaviv discs and magnetospheres, A. King winds and boundary layers in accretion disks, J.
J. Wheeler
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Accretion disk dynamics, photoionized plasmas, and stellar opacities
Physics of Plasmas, 2009We present a brief review on the atomic kinetics, modeling and interpretation of astrophysical observations, and laboratory astrophysics experiments. The emphasis is on benchmarking of opacity calculations relevant for solar structure models, photoionized plasmas research, the magnetohydrodynamic numerical simulation of accretion disk dynamics, and a ...
Roberto C Mancini
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Alfvén Waves in Dusty Proto-Stellar Accretion Disks
, 2012The magneto-rotational instability (MRI) is believed to be the mechanism responsible for a magneto-hydrodynamic (MHD) turbulence that could lead to the accretion observed in proto-stellar accretion disks. A minimum amount of ionization in this medium is necessary for the MRI to take place.
A. Vidotto, V. Jatenco-Pereira
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Formation and Evolution of Minerals in Accretion Disks and Stellar Outflows
, 2010The contribution discusses dust formation and dust processing in oxygen rich stellar outflows under non-explosive conditions, and in circumstellar discs. The main topics are calculation of solid-gas chemical equilibria, the basic concepts for calculating dust growth under non-equilibrium conditions, dust processing by annealing and solid diffusion, a ...
H. Gail
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Mathematical modeling of the structure of an accretion disk in a stellar binary system
Astronomy Reports, 2001Numerical simulations of gas-dynamical processes taking place in the accretion disk of a stellar binary system are presented. The initial state of the disk is an equilibrium gaseous configuration. Mechanisms for the development of spiral waves and associated variations in the angular momentum of the gas are considered. The influence of the ratio of the
M. V. Abakumov +3 more
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Heating mechanisms in accretion disks around young stellar objects
Proceedings of the International Astronomical Union, 2018AbstractAccretion disks are observed around young stellar objects such as T Tauri stars. In order to complete the star formation, particles in the disk need to loose angular momentum in order to be accreted into the central object. The magneto-rotational instability (MRI) is probably the mechanism responsible for a magneto-hydrodynamic (MHD) turbulence
Natália F.S. Andrade +2 more
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Magnetic Activity and the Interaction Between the Stellar Magnetosphere and the Accretion Disk
Astrophysics and Space Science, 2004Analytical and numerical analysis of the interaction between the magnetosphere of the Pre-Main-Sequence (PMS) stars and accretion disks are converging to a robust, fundamental mechanism for jet formation. They provide a reasonably solid base-line to explain the current observations on the formation of solar-like stars.
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