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Published in 2017 at "Journal of Astrophysics and Astronomy"
DOI: 10.1007/s12036-017-9503-4
Abstract: We explore the global structure of the accretion flow around a Schwarzschild black hole where the accretion disc is threaded by toroidal magnetic fields. The accretion flow is optically thin and advection dominated. The synchrotron…
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Keywords:
accretion;
flow;
accretion flow;
around black ... See more keywords
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Published in 2017 at "Chinese Physics Letters"
DOI: 10.1088/0256-307x/34/4/049701
Abstract: Nucleosynthesis in advection-dominated accretion flow (ADAF) onto a black hole is proposed to be an important role in chemical evolution around compact stars. We investigate the nucleosynthesis in ADAF relevant for a black hole of…
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Keywords:
black hole;
nucleosynthesis advection;
advection dominated;
nucleosynthesis ... See more keywords
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Published in 2019 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674-4527/19/7/95
Abstract: I present a scenario by which an accretion flow with alternating angular momentum sense on to a newly born neutron star in core collapse supernovae (CCSNe) efficiently amplifies magnetic fields and by that launches jets.…
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Keywords:
instability;
accretion;
accretion shock;
jittering jets ... See more keywords
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1
Published in 2017 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674–4527/17/8/86
Abstract: A model of an inhomogeneous accretion flow, in which cold clumps are surrounded by hot gas or corona, has been proposed to explain the spectral features of black hole X-ray binaries. In this work, we…
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Keywords:
inhomogeneous accretion;
accretion;
monte carlo;
accretion flow ... See more keywords
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Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa1687
Abstract: We study the two-temperature magnetized advective accretion flow around the Kerr black holes. During accretion, ions are heated up due to viscous dissipation, and when Coulomb coupling becomes effective, they transfer a part of their…
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Keywords:
advective accretion;
two temperature;
magnetized advective;
accretion ... See more keywords
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1
Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa2570
Abstract: Multi-wavelength spectral energy distributions of Low Mass X-ray Binaries in the hard state are determined by the emission from a jet, for frequencies up to mid-infrared, and emission from the accretion flow in the optical…
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Keywords:
jet;
model;
geometry;
accretion flow ... See more keywords
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Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa2600
Abstract: We study the small scale magnetic reconnection above the radiative inefficient accretion flow around massive black hole via 2D magnetohydrodynamics (MHD) numerical simulation, in order to model the blob formation and ejection from the accretion…
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Keywords:
flow around;
black hole;
accretion flow;
hole ... See more keywords
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3
Published in 2023 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stad1484
Abstract: We investigate the first emergence of the so-called cold accretion, the accretion flows deeply penetrating a halo, in the early universe with cosmological N-body/SPH simulations. We study the structure of the accretion flow and its…
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Keywords:
accretion;
first emergence;
cold accretion;
early universe ... See more keywords
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2
Published in 2022 at "Physical Review D"
DOI: 10.1103/physrevd.105.023024
Abstract: The feature of the observed shadows and rings of an astrophysical black hole (BH) may depend on its accretion flows and magnetic charge. We find that the shadow radii and critical impact parameters of the…
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Keywords:
shadows rings;
accretion;
magnetic charge;
accretion flow ... See more keywords