Results 11 to 20 of about 305,897 (326)
Hoyle-Lyttleton Accretion onto Accretion Disks [PDF]
Publications of the Astronomical Society of Japan, 1999 We investigate Hoyle-Lyttleton accretion for the case where the central source is a luminous accretion disk. In Hoyle-Lyttleton accretion onto a “spherical” source, accretion takes place in an axially symmetric manner around a so-called accretion axis and the accretion rate Ṁ is given as ṀHL(1 − Γ)2, where ṀHL is the accretion rate of the classical ...
FUKUE, Jun, IOROI, Masayuki
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Accretion disc particle accretion in major merger simulations [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 A recent approach to simulating localized feedback from active galactic nuclei by Power et al. (2011) uses an accretion disc particle to represent both the black hole and its accretion disc. We have extrapolated and adapted this approach to simulations of Milky Way-sized galaxy mergers containing black holes and explored the impact of the various ...
Wurster, James Howard +1 more
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, 2014 Citation: 'accretion' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.A00058 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
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Accrete, Accrete, Accrete… Bang! (and repeat): The remarkable Recurrent Novae [PDF]
Proceedings of The Golden Age of Cataclysmic Variables and Related Objects V — PoS(GOLDEN2019), 2021 All novae recur, but only a handful have been observed in eruption more than once. These systems, the recurrent novae (RNe), are among the most extreme examples of novae. RNe have long been thought of as potential type Ia supernova progenitors, and their claim to this 'accolade' has recently been strengthened. In this short review RNe will be presented
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Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2023 In this paper, we formulate a geometric nonlinear theory of the mechanics of accreting–ablating bodies. This is a generalization of the theory of accretion mechanics of Sozio & Yavari (Sozio & Yavari 2019 J. Nonlinear Sci. 29 , 1813–1863 (doi:10.1007/s00332-019-09531-w)).
Satya Prakash Pradhan, Arash Yavari
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Proceedings of Supernovae: lights in the darkness — PoS(SUPERNOVA), 2008 Thermonuclear (type Ia) supernovae are explosions in accreting white dwarfs, but the exact scenario leading to these explosions is still unclear. An important step to clarify this point is to understand the behaviour of accreting white dwarfs in close binary systems.
Hernanz, Margarita, José, Jordi
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, 2006 We compare different examples of spherical accretion onto a gravitating mass. Limiting cases include the accretion of a collisionally dominated fluid and the accretion of collisionless particles.
Begelman M. C. +3 more
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Long-term evolution of accretion discs in Be/X-ray binaries [PDF]
, 2006 We numerically study the long-term evolution of the accretion disc around the neutron star in a coplanar Be/X-ray binary with a short period and a moderate eccentricity. From three dimensional Smoothed Particle Hydrodynamics simulations, we find that the
Hayasaki, K., Okazaki, Atsuo T.
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Accretion Rates and the Accretion Efficiency in AGNs [PDF]
Publications of the Astronomical Society of Japan, 2003 Abstract We used the standard geometrical-thin accretion theory to obtain the accretion rates in Seyfert 1 galaxies and quasars. Combining the accretion rates with the bolometric luminosity, we obtained the accretion efficiency. We found that most Seyfert 1 galaxies and radio-quiet quasars have lower accretion efficiencies, while most ...
Weihao, Bian, Yongheng, Zhao
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Impacts of urbanization and tourism on the erosion and accretion of European, Asian and African coastal areas and possible solutions [PDF]
Urbanism. Arhitectura. Constructii, 2020 Coastal areas are very important due to the ecosystem services provided to the inhabitants. However, these advantages have resulted into an increasing attraction, especially in the recent centuries.
Huu Duy Nguyen +11 more
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