26 citations · 125 across the 12 of their papers we have counts for
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The Impact of Plasma Angular Momentum on Magnetically Arrested Flows and Relativistic Jets in Hot Accretion Flows Around Black Holes
Ho-Sang Chan, Prasun Dhang, Jason Dexter +1
In certain scenarios, the accreted angular momentum of plasma onto a black hole could be low; however, how the accretion dynamics depend on the angular momentum content of the plas…
Energy Extraction from a Black Hole by a Strongly Magnetized Thin Accretion Disk
Prasun Dhang, Jason Dexter, Mitchell C. Begelman
The presence of a strong, large-scale magnetic field in an accretion flow leads to extraction of the rotational energy of the black hole (BH) through the Blandford-Znajek (BZ) proc…
Shedding light on the MRI driven dynamo in a stratified shearing box
Prasun Dhang, Abhijit Bendre, Kandaswamy Subramanian
We study the magneto-rotational instability (MRI) driven dynamo in a geometrically thin disc () using stratified zero net flux (ZNF) shearing box simulations. We find tha…
Magnetic Flux Transport in Radiatively Inefficient Accretion Flows and the Pathway towards a Magnetically Arrested Disk
Prasun Dhang, Xue-Ning Bai, Christopher J. White
Large-scale magnetic fields play a vital role in determining the angular momentum transport and generating jets/outflows in the accreting systems, yet their origin remains poorly u…
Magnetic field structure in the vicinity of a super-massive black hole in low luminosity galaxies: the case of Sgr A*
Antonios Nathanail, Prasun Dhang, Christian M. Fromm
Observations of have provided a lot of insight on low-luminosity accretion, with a handful of bright flares accompanied with orbital motion close to the horizon. It ha…
Advective accretion onto a non-spherical accretor in white dwarf and neutron star binaries: a new scenario of shock formation
Sudeb Ranjan Datta, Prasun Dhang, Bhupendra Mishra
Numerous studies on hydrodynamics of the Keplerian as well as the sub-Keplerian accretion disc around a compact object (e.g., white dwarf (WD), neutron star (NS), or a black hole (…
Characterising the Dynamo in a Radiatively Inefficient Accretion Flow
Prasun Dhang, Abhijit Bendre, Prateek Sharma +1
We explore the MRI driven dynamo in a radiatively inefficient accretion flow (RIAF) using the mean field dynamo paradigm. Using singular value decomposition (SVD) we obtain the lea…
3D global simulations of RIAFs: convergence, effects of azimuthal extent and dynamo
Prasun Dhang, Prateek Sharma
We study the long-term evolution of non-radiative geometrically thick () accretion flows using 3D global ideal MHD simulations and a pseudo-Newtonian gravity. We fi…
Correlating nonlinear properties with spectral states of RXTE data: Possible observational evidences for four different accretion modes around compact objects
Oluwashina Adegoke, Prasun Dhang, Banibrata Mukhopadhyay +2
By analyzing the time series of RXTE/PCA data, the nonlinear variabilities of compact sources have been repeatedly established. Depending on the variation in temporal classes, comp…
Magnetized SASI: its mechanism and possible connection to some QPOs in XRBs
Prasun Dhang, Prateek Sharma, Banibrata Mukhopadhyay
The presence of a surface at the inner boundary, such as in a neutron star or a white dwarf, allows the existence of a standing shock in steady spherical accretion.The standing sho…
Spherical accretion: the influence of inner boundary and quasi-periodic oscillations
Prasun Dhang, Prateek Sharma, Banibrata Mukhopadhyay
Bondi accretion assumes that there is a sink of mass at the center -- which in case of a black hole (BH) corresponds to the advection of matter across the event horizon. Other star…