200 citations · 330 across the 10 of their papers we have counts for
10 papers
MHD simulations of resistive viscous accretion disk around millisecond pulsar
M. Čemeljić, V. Parthasarathy, W. Kluźniak
We perform MHD simulations of a thin resistive and viscous accretion disk around a neutron star with the surface dipolar magnetic field of 10 Gauss. The system evolution is fol…
MHD simulations of oscillating cusp-filling tori around neutron stars -- missing upper kHz QPO
Varadarajan Parthasarathy, Wlodek Kluzniak, Miljenko Cemeljic
We performed axisymmetric, grid-based, ideal magnetohydrodynamic (MHD) simulations of oscillating cusp-filling tori orbiting a non-rotating neutron star. A pseudo-Newtonian potenti…
Three-dimensional, global, radiative GRMHD simulations of a thermally unstable disc
B. Mishra, P. C. Fragile, L. C. Johnson +1
We present results of a set of three-dimensional, general relativistic radiation magnetohydrodynamics simulations of thin accretion discs around a non-rotating black hole to test t…
Quasi-periodic oscillations of perturbed tori
Varadarajan Parthasarathy, Antonios Manousakis, Wlodek Kluzniak
We performed axisymmetric hydrodynamical simulations of oscillating tori orbiting a non-rotating black hole. The tori in equilibrium were constructed with a constant distribution o…
Oscillations of radiation pressure supported tori near black holes
Grzegorz P. Mazur, Olindo Zanotti, Aleksander Sądowski +2
We study the dynamics of radiation pressure supported tori around Schwarzschild black holes, focusing on their oscillatory response to an external perturbation. Using KORAL, a gene…
Numerical simulations of thin accretion discs with PLUTO
Varadarajan Parthasarathy, Wlodek Kluzniak
Our goal is to perform global simulations of thin accretion discs around compact bodies like neutron stars with dipolar magnetic profile and black holes by exploiting the facilitie…
Spectral signature of oscillating slender tori surrounding Kerr black holes
F. H. Vincent, G. P. Mazur, O. Straub +4
Context. Some microquasars exhibit millisecond quasi-periodic oscillations (QPO) that are likely related to phenomena occuring in the immediate vicinity of the central black hole.…
Non-linear resonance in nearly geodesic motion in low-mass X-ray binaries
M. A. Abramowicz, V. Karas, W. Kluzniak +2
We have explored the ideas that parametric resonance affects nearly geodesic motion around a black hole or a neutron star, and that it may be relevant to the high frequency (twin)…
General-relativistic constraints on the equation of state of dense matter implied by kilohertz quasi-periodic oscillations in neutron-star X-ray binaries
W. Kluzniak
If the observed millisecond variability in the X-ray flux of several neutron-star low-mass X-ray binaries (LMXBs) is interpreted within a general-relativistic framework (Kluzniak,…
Black hole neutron star coalescence as a source of gamma-ray bursts
W. H. Lee, W. Kluzniak
We present the results of hydrodynamic (SPH) simulations showing the coalescence of a black hole with a neutron star to be a promising theoretical source of short duration gamma-ra…