26 citations · 125 across the 12 of their papers we have counts for
12 papers
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…
Iterative removal of sources to model the turbulent electromotive force
Abhijit B. Bendre, Jennifer Schober, Prasun Dhang +1
We describe a novel method to compute the components of dynamo tensors from direct magnetohydrodynamic (MHD) simulations. Our method relies upon an extension and generalisation of…
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…