542 citations · 709 across the 8 of their papers we have counts for
8 papers
Energy dissipation in astrophysical simulations: results of the Orszag-Tang test problem
Fatemeh Kayanikhoo, Miljenko Cemeljic, Maciek Wielgus +1
The magnetic field through the magnetic reconnection process affects the dynamics and structure of astrophysical systems. Numerical simulations are the tools to study the evolution…
Magnetically threaded accretion disks in resistive magnetohydrodynamic simulations and asymptotic expansion
Miljenko Čemeljić, Włodek Kluźniak, Varadarajan Parthasarathy
Aims. A realistic model of magnetic linkage between a central object and its accretion disk is a prerequisite for understanding the spin history of stars and stellar remnants. To t…
Conservative limits on the electric charge of Sgr A* in the Reissner-Nordstrom metric
Ruchi Mishra, Ronaldo S. S. Vieira, Włodek Kluźniak
In general relativity, the gravitational field of an electrically charged, non-rotating, spherically symmetric body is described by the Reissner-Nordström (RN) metric. Depending on…
A magnetized thin accretion disk: numerical simulations compared with asymptotic expansion
M. Čemeljić, W. Kluźniak, V. Parthasarathy
To obtain a simple description of a geometrically thin magnetic accretion disk, we apply the method of asymptotic expansion. For the first time we write a full set of stationary as…
Black hole spin inferred from 3:2 epicyclic resonance model of high-frequency quasi-periodic oscillations
E. Sramkova, G. Torok, A. Kotrlova +5
Estimations of black hole spin in the three Galactic microquasars GRS 1915+105, GRO J1655-40, and XTE J1550-564 have been carried out based on spectral and timing X-ray measurement…
Internal resonance in non-linear disk oscillations and the amplitude evolution of neutron star kilohertz QPOs
J. Horak, M. A. Abramowicz, W. Kluzniak +2
We explore some properties of twin kilohertz quasiperiodic oscillations (QPOs) in a simple toy-model consisting of two oscillation modes coupled by a general nonlinear force. We ex…