Results 11 to 20 of about 97,661 (176)
Bondi-like Accretion Flow Dynamics: The Role of Gravitational Potential
The Astrophysical JournalThe formation of massive black holes and their coevolution with host galaxies are pivotal areas of modern astrophysics. Spherical accretion onto a central point mass serves as a foundational framework in cosmological simulations, semi-analytical models ...
Razieh Ranjbar +2 more
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Direct Tests of Black Hole Accretion Rate Prescriptions. I. Bondi Accretion at Different Scales
The Astrophysical JournalWe present spatially resolved parsec-scale measurements of nuclear conditions (gas density and kinetic temperature) relevant for black hole accretion rate predictions in the Seyfert 2 galaxy, NGC 1068. We inject these parameters into the prescription for
James Agostino +11 more
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Morphology and Mach Number Dependence of Subsonic Bondi–Hoyle Accretion [PDF]
The Astrophysical JournalWe carry out three-dimensional computations of the accretion rate onto an object (of size R _sink and mass m ) as it moves through a uniform medium at a subsonic speed v _∞ . The object is treated as a fully absorbing boundary (e.g., a black hole).
Logan J. Prust +4 more
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Numerical Simulation of Hot Accretion Flow around Bondi Radius [PDF]
, 2022 Previous numerical simulations have shown that strong winds can be produced in the hot accretion flows around black holes. Most of those studies focus only on the region close to the central black hole, therefore it is unclear whether the wind production
Hai, Yang +5 more
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Bondi accretion in early-type galaxies [PDF]
, 2016 Accretion on to central massive black holes in galaxies is often modelled with the Bondi solution. In this paper, we study a generalization of the classical Bondi accretion theory, considering the additional effects of the gravitational potential of the ...
V. Korol +8 more
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Self-interacting dark scalar spikes around black holes via relativistic Bondi accretion
, 2023 We consider the spike mass density profile in a dark halo by self-consistently solving the relativistic Bondi accretion of dark matter onto a non-spining black hole of mass M.
Wei-Xiang Feng; Alessandro Parisi; Chian-Shu Chen; Feng-Li Lin
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On the polytropic Bondi accretion in two-component galaxy models with a central massive BH [PDF]
, 2022 In many investigations involving accretion on a central point mass, ranging from observational studies to cosmological simulations, including semi-analytical modelling, the classical Bondi accretion theory is the standard tool widely adopted.
Mancino A., Pellegrini S., Ciotti L.
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The Astrophysical Journal Letters, 2023 In this paper, we investigate the astrophysical processes of stellar-mass black holes (sMBHs) embedded in advection-dominated accretion flows (ADAFs) of supermassive black holes (SMBHs) in low-luminosity active galactic nuclei.
Jian-Min Wang +5 more
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Secular Spin–Orbit Resonances of Black Hole Binaries in AGN Disks
The Astrophysical Journal, 2023 The spin–orbit misalignment of stellar-mass black hole (sBH) binaries provides important constraints on the formation channels of merging sBHs. Here, we study the role of secular spin–orbit resonance in the evolution of an sBH binary component around a ...
Gongjie Li +3 more
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Modeling Gamma-Ray Emission From the High-Mass X-Ray Binary LS 5039 [PDF]
Journal of Astronomy and Space Sciences, 2012 A few high-mass X-ray binaries–consisting of an OB star plus compact companion– have been observed by Fermi and ground-based Cerenkov telescopes like High Energy Stereoscopic System (HESS) to be sources of very high energy (VHE; up to 30 TeV) γ-rays ...
Stan Owocki +2 more
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