Results 1 to 10 of about 1,036 (266)
Potential impact of the Sagittarius dwarf galaxy on the formation of young O-rich stars [PDF]
Nature CommunicationsThe Milky Way underwent significant transformations in its early history, characterised by violent mergers and satellite galaxy accretion. However, recent observations reveal notable star formation events over the past 4 Gyr, likely triggered by ...
Tiancheng Sun +12 more
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The gravitational microlens influence on X-ray spectral line generated by an AGN accretion disc [PDF]
Serbian Astronomical Journal, 2001 The influence of gravitational microlensing on the X-ray spectral line profiles originated from a relativistic accretion disc has been studied. Using a disc model, we show that microlensing can induce noticeable changes in the line shapes when the ...
Popović L.Č. +4 more
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Accretion discs in blazars [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 Accepted for publication (17 August 2009) in ...
Jolley, E. J. D. +3 more
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Counter-rotating accretion discs [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 11 pages, 13 figures, 1 ...
Dyda, Sergei +4 more
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Symposium - International Astronomical Union, 2003 In this article we report the results of our numerical investigation of warped accretion discs in binary stellar systems. We perform complete 3-D hydrodynamic simulations of binary discs. The disc is rendered unstable to the warp mode under the action of the magnetic field of the companion star in the binary.
D. Chakrabarty +3 more
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Intensity and Polarization of Radiation Emerging from Rotating Accretion Disc with Increasing Height
Universe, 2020 We consider the radiation emission in continuum and spectral lines from rotating accretion disc with the progressive increasing height. It is known that for the plane accretion disc with homogeneous atmosphere the wave electric field E is perpendicular ...
Nikolai Silant’ev +3 more
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Eccentric accretion discs [PDF]
Monthly Notices of the Royal Astronomical Society, 1994 We obtain evolutionary equations for non-stationary viscous accretion discs in which particles are orbiting along Keplerian ellipses that are slowly drifting towards the centre. It is shown that, for any reasonable viscosity law, stationary accretion is possible, with all orbiting particles moving with the same eccentricity.
Yu. E. Lyubarskij +2 more
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ACCRETION DISCS AROUND BLACK HOLES: DEVELOPEMENT OF THEORY
Odessa Astronomical Publications, 2017 Standard accretion disk theory is formulated which is based on the local heat balance. The energy produced by a turbulent viscous heating is supposed to be emitted to the sides of the disc.
G. S. Bisnovatyi-Kogan
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Odessa Astronomical Publications, 2016 In this study, the models of slaved precession of accretion disc and donors radiationdriven wind were performed using three-dimensional numerical astrophysical methods by the example of microquasar Cyg X-1. As is shown, in the course of precession of the
V. V. Nazarenko, S. V. Nazarenko
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Accretion Disc Thermal Reverberation in the Lamp Post Geometry
Proceedings, 2019 We present results regarding the disc response functions and the corresponding time lags assuming a standard Novikov--Thorne accretion disc illuminated by a point-like X-ray source.
Iossif E. Papadakis +2 more
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