Results 11 to 20 of about 720 (206)
Morphology and Mach Number Dependence of Subsonic Bondi–Hoyle Accretion
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
doaj +5 more sources
Entropic-acoustic instability of shocked Bondi accretion I. What does perturbed Bondi accretion sound like? [PDF]
Astronomy & Astrophysics, 2001 In the radial flow of gas into a black hole (i.e. Bondi accretion), the infall of any entropy or vorticity perturbation produces acoustic waves propagating outward. The dependence of this acoustic flux on the shape of the perturbation is investigated in detail.
T. Foglizzo
openaire +3 more sources
Bondi accretion in early-type galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 13 pages, 5 figures, submitted to MNRAS.
V. Korol +2 more
openaire +5 more sources
Bondi Accretion onto a Luminous Object [PDF]
Publications of the Astronomical Society of Japan, 2001 Abstract Spherical accretion of ionized gas onto a gravitating object is examined under the influence of central radiation. In classical Bondi accretion onto a non-luminous source with mass $ M$, the accretion rate $ \dot{M}_\mathrm{B}$ is expressed as $ \dot{M}_\mathrm{B}= \lambda(\gamma) \times 4\pi G^2 M^2\rho_\infty c_{\mathrm{s ...
FUKUE, Jun
openaire +2 more sources
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
doaj +2 more sources
Prospects for AGN Studies with AXIS: AGN Fueling—Resolving Hot Gas inside Bondi Radius of SMBHs
UniverseHot gas around a supermassive black hole (SMBH) should be captured within the gravitational “sphere of influence”, characterized by the Bondi radius. Deep Chandra observations have spatially resolved the Bondi radii of five nearby SMBHs that are believed
Ka-Wah Wong +4 more
doaj +5 more sources
Bondi accretion in the spherically symmetric Johannsen–Psaltis spacetime [PDF]
European Physical Journal C: Particles and Fields, 2019 The Johannsen–Psaltis spacetime explicitly violates the no-hair theorem. It describes rotating black holes with scalar hair in the form of parametric deviations from the Kerr metric.
Anslyn J. John, Chris Z. Stevens
doaj +3 more sources
Perturbations of self-similar Bondi accretion
, 2005 10 pages, 2 figures, accepted in Astronomy and ...
J. Gaite
openaire +3 more sources
Generalized Bondi Accretion Flow with and without Outflow
The Astrophysical JournalThe properties of accretion flows are affected by the angular momentum of the accreting gas. M.-G. Park found that the mass accretion rate, specifically, decreases significantly as the gas angular momentum increases. However, R. Narayan & A. C.
Dongho Han, Myeong-Gu Park
doaj +3 more sources
Bondi accretion onto cosmological black holes [PDF]
Physical Review D, 2013 misprints corrected, matches published ...
Karkowski, Janusz, Malec, Edward
openaire +4 more sources