Results 1 to 10 of about 2,560 (288)
Impact of the Accretion Disk Thickness on the Polarization of the Thermal Emission from Stellar Mass Black Holes [PDF]
The Astrophysical Journal, 2023 The Imaging X-ray Polarimetry Explorer, launched in 2021 December, enables precision measurements of the energy-dependent polarization of the X-ray emission from stellar mass and supermassive black holes.
Andrew Thomas West, Henric Krawczynski
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MAGNETICALLY CONTROLLED ACCRETION FLOWS ONTO YOUNG STELLAR OBJECTS [PDF]
The Astrophysical Journal, 2011 (abridged) Accretion from disks onto young stars is thought to follow magnetic field lines from the inner disk edge to the stellar surface. The accretion flow thus depends on the geometry of the magnetic field. This paper extends previous work by constructing a collection of orthogonal coordinate systems, including the corresponding differential ...
Adams, Fred C., Gregory, Scott G.
+6 more sources
The High Energy X-ray Probe (HEX-P): probing accretion onto stellar mass black holes [PDF]
Frontiers in Astronomy and Space SciencesAccretion is a universal astrophysical process that plays a key role in cosmic history, from the epoch of reionization to galaxy and stellar formation and evolution. Accreting stellar-mass black holes in X-ray binaries are one of the best laboratories to
Riley M. T. Connors +24 more
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Accretion flares from stellar collisions in galactic nuclei [PDF]
Astronomy & AstrophysicsContext. The strong tidal force in a supermassive black hole’s (SMBH) vicinity, coupled with a higher stellar density at the center of a galaxy, make it an ideal location to study the interaction between stars and black holes. Two stars moving near the SMBH could collide at a very high speed, which can result in a high energy flare.
B. X. Hu, A. Loeb
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Low-Rate Accretion onto Isolated Stellar-Mass Black Holes [PDF]
Astronomy & Astrophysics, 2005 Magnetic field behaviour in a spherically-symmetric accretion flow for parameters typical of single black holes in the Galaxy is discussed. It is shown that in the majority of Galaxy volume, accretion onto single stellar-mass black holes will be spherical and have a low accretion rate ($10^{-6} - 10^{-9}$ of the Eddington rate).
Beskin, G. M., Karpov, S. V.
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Black Hole Accretion and Spin-up through Stellar Collisions in Dense Star Clusters [PDF]
The Astrophysical JournalDynamical interactions in dense star clusters could significantly influence the properties of black holes, leaving imprints on their gravitational-wave signatures.
Fulya Kıroğlu +4 more
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Accretion of stellar winds onto Sgr A* [PDF]
Proceedings of the International Astronomical Union, 2006 AbstractWe report a 3-dimensional numerical study of the accretion of stellar winds onto Sgr A*, the super-massive black hole at the centre of our Galaxy. Compared with previous investigations, we allow the stars to be on realistic orbits, include the recently discovered slow wind sources, and allow for optically thin radiative cooling.
Cuadra, J, Nayakshin, S
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The structure of accreted stellar streams [PDF]
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACT Many of the Milky Way’s globular clusters are likely accreted from satellite galaxies that have long since merged with the Milky Way. When these globular clusters are susceptible to tidal disruption, this process likely starts already inside the parent satellite leading to an early stellar stream within the satellite.
Yansong Qian, Yumna Arshad, Jo Bovy
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The Mass Accretion Rate and Stellar Properties in Class I Protostars
The Astrophysical Journal, 2023 Stars collect most of their mass during the protostellar stage, yet the accretion luminosity and stellar parameters, which are needed to compute the mass accretion rate, are poorly constrained for the youngest sources.
Eleonora Fiorellino +7 more
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The Astrophysical Journal, 2023 We present a three-dimensional, time-dependent MHD simulation of the short-term interaction between a protoplanetary disk and the stellar corona in a T Tauri system.
Ofer Cohen +6 more
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