Standing shocks in magnetized dissipative accretion flow around black holes
Sign Up to like & getrecommendations! 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… read more here.
Keywords: accretion; flow; accretion flow; around black ... See more keywords
Nucleosynthesis in Advection-Dominated Accretion Flow onto a Black Hole
Sign Up to like & getrecommendations! 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… read more here.
Keywords: black hole; nucleosynthesis advection; advection dominated; nucleosynthesis ... See more keywords
Reviving the stalled shock by jittering jets in core collapse supernovae: jets from the standing accretion shock instability
Sign Up to like & getrecommendations! 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.… read more here.
Keywords: instability; accretion; accretion shock; jittering jets ... See more keywords
A Monte Carlo study of the spectra from inhomogeneous accretion flow
Sign Up to like & getrecommendations! 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… read more here.
Keywords: inhomogeneous accretion; accretion; monte carlo; accretion flow ... See more keywords
Properties of two-temperature magnetized advective accretion flow around rotating black hole
Sign Up to like & getrecommendations! 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… read more here.
Keywords: advective accretion; two temperature; magnetized advective; accretion ... See more keywords
Testing jet geometries and disc–jet coupling in the neutron star LMXB 4U 0614 + 091 with the internal shocks model
Sign Up to like & getrecommendations! 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… read more here.
Keywords: jet; model; geometry; accretion flow ... See more keywords
Blob formation and ejection from the radiative inefficient accretion flow around massive black hole
Sign Up to like & getrecommendations! 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… read more here.
Keywords: flow around; black hole; accretion flow; hole ... See more keywords
First emergence of cold accretion and supermassive star formation in the early universe
Sign Up to like & getrecommendations! 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… read more here.
Keywords: accretion; first emergence; cold accretion; early universe ... See more keywords
Influence of accretion flow and magnetic charge on the observed shadows and rings of the Hayward black hole
Sign Up to like & getrecommendations! 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… read more here.
Keywords: shadows rings; accretion; magnetic charge; accretion flow ... See more keywords