181 citations · 1.1k across the 27 of their papers we have counts for
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Black hole in a combined magnetic field: ionized accretion disks in the jetlike and looplike configurations
Saltanat Kenzhebayeva, Saken Toktarbay, Arman Tursunov +1
Magnetic fields surrounding black holes are responsible for various astrophysical phenomena related to accretion processes and relativistic jets. Depending on the source, the confi…
Epicyclic oscillations in spinning particle motion around Kerr black hole applied in models fitting the quasi-periodic oscillations observed in quasars and microquasars
Misbah Shahzadi, Martin Kološ, Zdeněk Stuchlík +1
The study of the quasi-periodic oscillations (QPOs) of X-ray flux observed in the stellar-mass black hole (BH) binaries or quasars can provide a powerful tool for testing the pheno…
Supermassive black holes as possible sources of ultra high energy cosmic rays
Arman Tursunov, Zdeněk Stuchlík, Martin Kološ +2
Production and acceleration mechanisms of ultra-high-energy cosmic rays (UHECRs) of energy eV, clearly beyond the GZK-cutoff limit remain unclear that points to exotic na…
Multi-messenger signals from short gamma ray bursts
Agnieszka Janiuk, Kostas Sapountzis, Bestin James +1
We present the results of simulations done with the code HARM-COOL developed in the CTP PAS Warsaw research group over the years 2017-2019. It is based in the original GR MHD schem…
Constraints on mass, spin and magnetic field of microquasar H~1743-322 from observations of QPOs
Arman Tursunov, Martin Kološ
The study of quasi-periodic oscillations (QPOs) of X-ray flux observed in many microquasars can provide a powerful tool for testing of the phenomena occurring in strong gravity reg…
Possible signature of magnetic fields related to quasi-periodic oscillation observed in microquasars
Martin Kološ, Arman Tursunov, Zdeněk Stuchlík
The study of quasi-periodic oscillations (QPOs) of X-ray flux observed in the stellar-mass black hole binaries can provide a powerful tool for testing of the phenomena occurring in…
Controversy of the GRO J1655-40 black hole mass and spin estimates and its possible solutions
Zdeněk Stuchlík, Martin Kološ
Estimates of the black hole mass and dimensionless spin in the microquasar GRO J1655-40 implied by strong gravity effects related to the timing and spectral measurements ar…
Test of the string loop oscillation model using kHz quasiperiodic oscillations in a neutron star binary
Zdeněk Stuchlík, Martin Kološ
The model of current-carrying string loop oscillations is tested to explain the special set of frequencies related to the high-frequency quasiperiodic oscillations (HF QPOs) observ…
String loops oscillating in the field of Kerr black holes as a possible explanation of twin high-frequency quasiperiodic oscillations observed in microquasars
Zdeněk Stuchlík, Martin Kološ
Small oscillations of current-carrying string loops around stable equilibrium positions corresponding to minima of the effective potential in the equatorial plane of the Kerr black…