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Formation of an Accretion Flow [PDF]
Space Science Reviews, 2021 After a star has been tidally disrupted by a black hole, the debris forms an elongated stream. We start by studying the evolution of this gas before its bound part returns to the original stellar pericenter. While the axial motion is entirely ballistic, the transverse directions of the stream are usually thinner due to the confining effects of self ...
C. Bonnerot, N. C. Stone
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TeMA: Journal of Land Use, Mobility and Environment, 2023 Lakes and their shorelines are important ecosystem areas with the diversity of living species they host. In addition, lakes are an almost indispensable resource for humans as a source of fresh water.
Gizem Dinç
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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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Global Radiation Magnetohydrodynamic Simulations of sub-Eddington Accretion Disks around Supermassive Black Holes [PDF]
Astrophysical Journal, 2019 We conduct global three-dimensional radiation magnetohydrodynamic simulations of the inner regions of accretion flows around a 5 × 108M⊙ black hole, with mass accretion rates reaching 7% and 20% of the Eddington value.
Yan-Fei 飞姜 Jiang 燕 +3 more
semanticscholar +1 more source
On the Accretivity of the Inverse of an Accretive Relation [PDF]
Proceedings of the American Mathematical Society, 1977 If X is a smooth, reflexive, real Banach space such that a relation A in X × X X \times X is accretive iff A − 1 {A^{ - 1}} is accretive, then X is isomorphic to a Hilbert space.
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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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The Relationship between Mg ii Broad Emission and Quasar Inclination Angle
Frontiers in Astronomy and Space Sciences, 2017 Several observed spectral properties of quasars are believed to be influenced by quasar orientation. In this investigation we examine the effect of orientation on the Mg ii line located at 2,798 Å in a sample of 36 radio-loud quasars, with orientation ...
Conor Wildy, Bozena Czerny
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Galaxies, 2023 We study radio and X-ray emissions from intermediate-mass black holes (IMBHs) and explore the unified model for accretion and ejection processes. The radio band survey of IMBH (candidate) hosted galaxies indicates that only a small fraction (∼0.6%) of ...
Xiaolong Yang, Jun Yang
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Global long-term observations of coastal erosion and accretion
Scientific Reports, 2018 Changes in coastal morphology have broad consequences for the sustainability of coastal communities, structures and ecosystems. Although coasts are monitored locally in many places, understanding long-term changes at a global scale remains a challenge ...
L. Mentaschi +4 more
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Circumbinary Disks: Accretion and Torque as a Function of Mass Ratio and Disk Viscosity [PDF]
Astrophysical Journal, 2019 Using numerical hydrodynamics calculations and a novel method for densely sampling parameter space, we measure the accretion and torque on a binary system from a circumbinary disk.
P. Duffell +6 more
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