Results 31 to 40 of about 720 (206)
BONDI-HOYLE ACCRETION IN AN ISOTHERMAL MAGNETIZED PLASMA [PDF]
The Astrophysical Journal, 2014 Accepted to ApJ. 18 pages, 16 figures, emulateapj format. Abstract above abbreviated for space.
Lee, Aaron T. +3 more
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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
doaj +1 more source
Bondi Accretion and the Problem of the Missing Isolated Neutron Stars [PDF]
The Astrophysical Journal, 2003 A large number of neutron stars (NSs), ~10^9, populate the Galaxy, but only a tiny fraction of them is observable during the short radio pulsar lifetime. The majority of these isolated NSs, too cold to be detectable by their own thermal emission, should be visible in X-rays as a result of accretion from the interstellar medium. The ROSAT all sky survey
PERNA R +4 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
doaj +1 more source
BONDI–HOYLE–LYTTLETON ACCRETION ONTO A PROTOPLANETARY DISK [PDF]
The Astrophysical Journal, 2009 Young stellar systems orbiting in the potential of their birth cluster can accrete from the dense molecular interstellar medium during the period between the star's birth and the dispersal of the cluster's gas. Over this time, which may span several Myr, the amount of material accreted can rival the amount in the initial protoplanetary disk; the ...
Moeckel, Nickolas, Throop, Henry B.
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Ultrarelativistic Bondi–Hoyle accretion – I. Axisymmetry [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 An ultrarelativistic relativistic study of axisymmetric Bondi--Hoyle accretion onto a moving Kerr black hole is presented. The equations of general relativistic hydrodynamics are solved using high resolution shock capturing methods. In this treatment we consider the ultrarelativistic limit wherein one may neglect the baryon rest mass density.
openaire +3 more sources
STAR FORMATION IN MASSIVE CLUSTERS VIA BONDI ACCRETION [PDF]
The Astrophysical Journal, 2012 8 pages, 5 figures, submitted to ...
Murray, Norman, Chang, Philip
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Bondi–Hoyle–Lyttleton Accretion onto Star Clusters [PDF]
The Astrophysical Journal, 2019 Abstract An isolated star moving supersonically through a uniform gas accretes material from its gravitationally induced wake. The rate of accretion is set by the accretion radius of the star and is well described by classical Bondi–Hoyle–Lyttleton theory. Stars, however, are not born in isolation.
Nicholas Kaaz +2 more
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Bondi accretion for adiabatic flows onto a massive black hole with an accretion disc [PDF]
Astronomy & Astrophysics, 2021 We present the classical Bondi accretion theory for the case of non-isothermal accretion processes onto a supermassive black hole (SMBH), including the effects of X-ray heating and the radiation force due to electron scattering and spectral lines.
J. M. Ramírez-Velásquez +4 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
doaj +1 more source