Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Nag, Sankhasubhra"'
Publikováno v:
New Astronomy, Volume 69, pp. 48-57 (2019)
For low angular momentum axially symmetric accretion flow maintained in hydrostatic equilibrium along the vertical direction, the value of the Mach number at the critical points deviates from unity, resulting in the non-isomorphism of the critical an
Externí odkaz:
http://arxiv.org/abs/1806.04084
In this work, we have studied the effect of higher order perturbations, particularly the second order in details, on the sonic horizon. We have considered two different schemes of perturbations which are velocity potential perturbation and mass accel
Externí odkaz:
http://arxiv.org/abs/1803.05312
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 480, Issue 3, November 2018, Pages 3017-3030
For three different geometric configurations of matter and two different thermodynamic equations of state, low angular momentum, multi-transonic, axially symmetric accretion flow of matter having fractional dimension of mass distribution onto a rotat
Externí odkaz:
http://arxiv.org/abs/1702.01489
We investigate the role of the spin angular momentum of astrophysical black holes in controlling the special relativistic chaotic dynamics of test particles moving under the influence of a post-Newtonian pseudo-Kerr black hole potential, along with a
Externí odkaz:
http://arxiv.org/abs/1601.02100
Analytical studies of black hole accretion usually presumes the stability of the stationary transonic configuration. Various authors in the past several decades demonstrated the validity of such an assumption for inviscid hydrodynamic flow. Inviscid
Externí odkaz:
http://arxiv.org/abs/1512.08488
Multi-transonic accretion for a spinning black hole has been compared among different disc geometries within post Newtonian pseudo potential framework. The variation of stationary shock characteristics with black hole spin has been studied in details
Externí odkaz:
http://arxiv.org/abs/1501.00284
Analytical treatment of black hole accretion generally presumes the stability of the stationary configuration. Various authors in the past several decades demonstrated the validity of such an assumption for inviscid hydrodynamic flow. Inviscid assump
Externí odkaz:
http://arxiv.org/abs/1406.3707
Publikováno v:
In New Astronomy May 2019 69:48-57
Autor:
Das, Tapas K., Nag, Sankhasubhra, Hegde, Swathi, Bhattacharya, Sourav, Maity, Ishita, Czerny, Bozena, Barai, Paramita, Wiita, Paul J., Karas, Vladimir, Naskar, Tapan
Publikováno v:
New Astron. 37 (2015) 81-104
We introduce a novel formalism to investigate the role of the spin angular momentum of astrophysical black holes in influencing the behaviour of low angular momentum general relativistic accretion. We propose a metric independent analysis of axisymme
Externí odkaz:
http://arxiv.org/abs/1211.6952
For axially symmetric flow of dissipationless inhomogeneous fluid onto a non rotating astrophysical black hole under the influence of a generalized pseudo-Schwarzschild gravitational potential, we investigate the influence of the background flow conf
Externí odkaz:
http://arxiv.org/abs/1205.5506