62 citations · 114 across the 10 of their papers we have counts for
10 papers
A magnetically-supported disk-corona model for Changing-Look AGN transitions
Marios Kouzis, Agata Różańska, Debora Lančová +2
Changing-Look Active Galactic Nuclei (CLAGN) undergo dramatic spectral and luminosity transitions on timescales of months to a few years -- orders of magnitude shorter than the vis…
Radiative GRMHD simulations of puffy accretion discs: Numerical versus analytical models of sub-Eddington accretion
Debora Lančová, Maciek Wielgus, Marek Abramowicz +6
A widely accepted picture of an accretion flow in the luminous soft spectral state of X-ray binary systems is a geometrically thin disc structure much like the classic analytic sol…
Lense-Thirring precession of neutron-star accretion flows: Relativistic versus classical precession
Gabriel Török, Martin Urbanec, Monika Matuszková +5
The vertical (Lense-Thirring) precession of the innermost accretion flows has been discussed as a sensitive indicator of the rotational properties of neutron stars (NSs) and their…
Spins of Black Holes in X-ray Binaries and the Tension with the Gravitational Wave Measurements
Andrzej A. Zdziarski, Gregoire Marcel, Alexandra Veledina +2
We review current challenges in understanding the values and origin of the spins of black holes in binaries. Thanks to recent advances in astrophysical instrumentation, the spins c…
Timing of accreting neutron stars with future X-ray instruments: towards new constraints on dense matter equation of state
V. Karas, K. Klimovicova, D. Lancova +7
The Enhanced X-ray Timing and Polarimetry (eXTP) mission is a space mission to be launched in the late 2020s that is currently in development led by China in international collabor…
Oscillations of Fluid Tori around Neutron Stars
Eva Šrámková, Monika Matuszková, Kateřina Klimovičová +7
We examine the influence of quadrupole moment of a slowly rotating neutron star (NS) on the oscillations of a fluid accretion disk (torus) orbiting a compact object the spacetime a…
Spectra of Puffy Accretion Discs: the kynbb Fit
Debora Lančová, Anastasiya Yilmaz, Maciek Wielgus +3
Puffy disc is a numerical model, expected to capture the properties of the accretion flow in X-ray black hole binaries in the luminous, mildly sub-Eddington state. We fit the kerrb…
Simple analytic formula relating the mass and spin of accreting compact objects to their rapid X-ray variability
Gabriel Török, Andrea Kotrlová, Monika Matuszková +4
Following the previous research on epicyclic oscillations of accretion disks around black holes (BHs) and neutron stars (NSs), a new model of high-frequency quasi-periodic oscillat…
Observational properties of puffy disks: radiative GRMHD spectra of mildly sub-Eddington accretion
Maciek Wielgus, Debora Lancova, Odele Straub +7
Numerical general relativistic radiative magnetohydrodynamic simulations of accretion disks around a stellar mass black hole with a luminosity above 0.5 of the Eddington value reve…
Puffy accretion disks: sub-Eddington, optically thick, and stable
Debora Lančová, David Abarca, Włodek Kluźniak +6
We report on a new class of solutions of black hole accretion disks that we have found through three-dimensional, global, radiative magnetohydrodynamic simulations in general relat…