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List of works by Vladimír Karas

A case for a binary black hole system revealed via quasi-periodic outflows

scientific article published on 29 March 2024

A cloud model of active galactic nuclei: the iron K{alpha} line diagnostics

scientific article published in January 2000

A new view on the M 87 jet origin: Turbulent loading leading to large-scale episodic wiggling

scientific article published in January 2017

A star orbiting around a supermassive rotating black hole : free motion and corrections due to star-disc collisions

scholarly article by Vokrouhlicky D. & Karas V. published 1993 in Monthly Notices of the Royal Astronomical Society

A test of the formation mechanism of the broad line region in active galactic nuclei ⬇️

scientific article published in January 2016

Accretion in strong field gravity with eXTP

scholarly article

Active galaxy 4U 1344-60: did the relativistic line disappear?

scientific article published in January 2012

Alive but Barely Kicking: News from 3+ yr of Swift and XMM-Newton X-Ray Monitoring of Quasiperiodic Eruptions from eRO-QPE1

scientific article published in March 2024

An extended scheme for fitting X-ray data with accretion disk spectra in the strong gravity regime

scientific article published in January 2004

An orbiter crossing an accretion disc

scholarly article

Asymptotically uniform magnetic field near a Kerr black hole

scientific article published on 01 September 1989

Automated spectral and timing analysis of AGNs

scholarly article

Black hole accretion rings revealed by future X-ray spectroscopy

scholarly article by Sochora V. et al published 2011 in Monthly Notices of the Royal Astronomical Society

Black hole outflows initiated by a large-scale magnetic field

scientific article published in July 2024

Black hole spin dependence of general relativistic multi-transonic accretion close to the horizon

scholarly article by Tapas K. Das et al published May 2015 in New Astronomy

Bright X-ray flares from Sgr A*

scientific article published in January 2017

Charged tori in spherical gravitational and dipolar magnetic fields

scholarly article

Conditions for thermal instability in the Galactic Centre mini-spiral region

scientific article published in January 2014

Coordinated mm/sub-mm observations of Sagittarius A* in May 2007

Coordinated multi-wavelength observations of Sgr A*

article published in 2008

Dust-enshrouded star near supermassive black hole: predictions for high-eccentricity passages near low-luminosity galactic nuclei ⬇️

scholarly article by Zajacek M. et al published 2014 in Astronomy and Astrophysics

Effect of an isotropic outflow from the Galactic Centre on the bow-shock evolution along the orbit ⬇️

scientific article published in January 2016

Effect of the toroidal magnetic field on the runaway instability of relativistic tori

scientific article published in January 2013

Effects of Kerr space-time on spectral features from X-ray illuminated accretion discs

scientific article published in January 2000

Electrically charged matter in permanent rotation around magnetized black holes: a toy model for self-gravitating fluid tori ⬇️

scientific article published in January 2016

Enhanced activity of massive black holes by stellar capture assisted by a self-gravitating accretion disc

scholarly article by Karas V. & Subr L. published 2007 in Astronomy and Astrophysics

Evidence for a relativistic iron line in GRS 1915+105

scientific article published in January 2002

Extended submillimeter emission of the galactic center and near-infrared/submillimeter variability of its supermassive black hole ⬇️

scholarly article by Garcia-Marin M. et al published 2011 in Letters of the Astrophysical Journal

Extremal energy shifts of radiation from a ring near a rotating black hole ⬇️

scientific article published in January 2010

Failed radiatively accelerated dusty outflow model of the broad line region in active galactic nuclei. I. Analytical solution ⬇️

scientific article published in January 2017

First Detection of Polarization in X-Rays for PSR B0540-69 and Its Nebula

scholarly article

Flare emission from Sagittarius A*

Flares of Sgr A*: from X-ray to mm

Gravitating discs around black holes

scholarly article by V Karas et al published 8 March 2004 in Classical and Quantum Gravity

Hot-spot model for accretion disc variability as random process

scientific article published in January 2008

Hot-spot model for accretion disc variability as random process. II. Mathematics of the power-spectrum break frequency

scientific article

IXPE observation confirms a high spin in the accreting black hole 4U 1957+115

scholarly article

In the vicinity of a rotating black hole : a fast numerical code for computing observational effects

scholarly article by Karas V. et al published 1992 in Monthly Notices of the Royal Astronomical Society

Inducing chaos by breaking axial symmetry in a black hole magnetosphere ⬇️

scientific article published in January 2014

Inguinal metastases from testicular cancer

scientific article published in April 2006

Interior potential of a toroidal shell from pole values

scientific article

Interpretation of Departure from the Broad-line Region Scaling in Active Galactic Nuclei

scientific article

Investigating the relativistic motion of the stars near the supermassive black hole in the Galactic Center ⬇️

scholarly article by Parsa M. et al published 2017 in Letters of the Astrophysical Journal

Iron lines from transient and persisting hot spots on AGN accretion disks

scientific article published in January 2007

K-band polarimetry of an Sgr A* flare with a clear sub-flare structure

scientific article published in January 2006

Kinetic theory of equilibrium axisymmetric collisionless plasmas in off-equatorial tori around compact objects

scholarly article

LOFT: the Large Observatory For X-ray Timing

article

Light curve of a source orbiting a black hole: a fitting formula ⬇️

scientific article published in January 1996

Light-bending scenario for accreting black holes in X-ray polarimetry ⬇️

scientific article published in January 2011

Magnetic flares in Active Galactic Nuclei: modeling the iron K alpha line

scientific article published in January 2006

Millimeter to X-ray flares from Sagittarius A*

scientific article published in Astronomy and Astrophysics

Modeling time delays in the X-ray spectrum of the Seyfert galaxy MCG-6-30-15

scientific article published in January 2007

Monitoring the Dusty S-cluster Object (DSO/G2) on its orbit towards the Galactic Center Black Hole: Periapse not yet reached

scientific article published in January 2014

Monitoring the Galactic Centre with the Australia Telescope Compact Array ⬇️

scientific article published in January 2016

Multiphase environment of compact galactic nuclei: the role of the nuclear star cluster ⬇️

scientific article published in January 2017

Multiple accretion events as a trigger for Sagittarius A* activity

scholarly article

Nature of the Galactic centre NIR-excess sources. I. What can we learn from the continuum observations of the DSO/G2 source?

scholarly article

Near infrared flares of Sagittarius A*. Importance of near infrared polarimetry

scientific article published in January 2010

Near-horizon structure of escape zones of electrically charged particles around weakly magnetized rotating black hole ⬇️

scholarly article by Kopacek O. & Karas V. published 2018 in Letters of the Astrophysical Journal

Near-infrared polarimetry as a tool for testing properties of accreting supermassive black holes

scientific article published in January 2011

Near-infrared polarimetry setting constraints on the orbiting spot model for Sgr A* flares

scientific article published in January 2006

Non-linear resonance in nearly geodesic motion in low-mass X-ray binaries

scientific article published in January 2003

Nonthermal Emission from Fall-back Clouds in the Broad-line Region of Active Galactic Nuclei

scientific article published in 2022

Observing the Strong Gravity Regime of Acrreting Black Holes with SIMBOL-X

scholarly article published 2008

Of NBOs and kHz QPOs: a low-frequency modulation in resonant oscillations of relativistic accretion disks

scholarly article

On highly eccentric stellar trajectories interacting with a self-gravitating disc in Sgr A^*^

scientific article published in January 2005

On the light curve of an orbiting spot

scientific article published in January 1992

On the orientation of the Sagittarius A* system

scientific article published in January 2007

On the origin of the broad, relativistic iron line of MCG-6-30-15 observed by XMM-Newton

scientific article

On the prospect of constraining black hole spin through X-ray spectroscopy of hotspots ⬇️

scientific article published in January 2009

On the role of strong gravity in polarization from scattering of light in relativistic flows

scientific article published in January 2006

On the runaway instability of relativistic tori

scientific article published in January 1998

Orbital decay of satellites crossing an accretion disc

scientific article published in January 2001

Parameters of Black Holes in Sources with Periodic Variability

Poincar$eacute$ ball embeddings of the optical geometry

Polarization of light from warm clouds above an accretion disk: effects of strong gravity near a black hole

scholarly article by Hora J. et al published 2006 in Publications of the Astronomical Society of Japan

Polarization signatures of strong gravity in active galactic nuclei accretion discs

scientific article published in January 2004

Polarized NIR and X-ray flares from Sagittarius A*

scientific article

Polarized light from Sagittarius A* in the near-infrared K_s_-band ⬇️

scientific article published in January 2015

Predictions for the reverberating spectral line from a newly formed black hole accretion disk: case of tidal disruption flares ⬇️

scientific article published in January 2015

Probing Sagittarius A* and its environment at the Galactic Centre: VLT and APEX working in synergy

scientific article published in January 2008

Prospects of 3D mapping of the Galactic Centre clouds with X-ray polarimetry ⬇️

scientific article published in January 2014

Pseudo-Newtonian models of a rotating black hole field

scientific article published in January 1999

Relativistic spectral features from X-ray-illuminated spots and the measure of the black hole mass in active galactic nuclei

scholarly article by Dovciak M. et al published 2004 in Monthly Notices of the Royal Astronomical Society

Role of emission angular directionality in spin determination of accreting black holes with a broad iron line

scientific article published in January 2009

Self-Consistent Dynamical Model of the Broad Line Region

scientific article published on 22 June 2017

Signatures of X-ray reverberation in the power spectra of AGN ⬇️

scientific article published in January 2016

Similarity of the variability patterns in the Exosat and Ginga folded light curves of the Seyfert galaxy NGC 6814

scholarly article

Source-intrinsic near-infrared properties of Sgr A*: total intensity measurements

scientific article published in January 2012

Star-disc interactions in a galactic centre and oblateness of the inner stellar cluster

scientific article published in January 2004

Stellar capture by an accretion disc

scientific article

Stellar dynamics in a galactic centre surrounded by a massive accretion disc - I. Newtonian description

scholarly article

Testing the X-ray reverberation model KYNREFREV in a sample of Seyfert 1 Active Galactic Nuclei

scientific article

The Galactic Centre: The Flare Activity of SgrA* and High-Resolution Explorations of Dusty Stars

scientific article published in January 2006

The Galactic centre mini-spiral in the mm-regime

scientific article published in January 2012

The LOFT mission concept: a status update

article

The Large Observatory for X-ray Timing (LOFT)

article

The Large Observatory for x-ray timing

article

The XMM-Newtonview of GRS 1915+105

scientific article

The enhanced X-ray Timing and Polarimetry mission—eXTP

article

The flare model for X-ray variability of NGC 4258

scientific article published in January 2011

The instrumental polarization of the Nasmyth focus polarimetric differential imager NAOS/CONICA (NACO) at the VLT. Implications for time-resolved polarimetric measurements of Sagittarius A^*^

scholarly article

The large area detector onboard the eXTP mission

article

The model constraints from the observed trends for the quasi-periodic oscillation in RE J1034+396

scientific article published in January 2010

The on-board calibration system of the X-ray Imaging Polarimetry Explorer (XIPE)

article

The relativistic shift of narrow spectral features from black-hole accretion discs

scientific article published in January 2005

The structure and X-ray radiation spectra of illuminated accretion disks in AGN. III. Modeling fractional variability

scientific article published in January 2006

The structure and radiation spectra of illuminated accretion disks in AGN II. Flare/spot model of X-ray variability

scientific article published in January 2004

The upper kilohertz quasi-periodic oscillation: a gravitationally lensed vertical oscillation ⬇️

scientific article published in January 2004

Theoretical modelling of the AGN iron line vs. continuum time-lags in the lamp-post geometry ⬇️

scientific article published in January 2016

Thermal disc emission from a rotating black hole: X-ray polarization signatures

scientific article published in January 2008

Time Delay Measurement of Mg ii Line in CTS C30.10 with SALT

scientific article published on 24 July 2019

Transition from regular to chaotic circulation in magnetized coronae near compact objects ⬇️

scientific article

Twin peak separation in sources with kilohertz quasi-periodic oscillations caused by orbital motion ⬇️

scholarly article

Twin-peak quasiperiodic oscillations as an internal resonance

scholarly article

Understanding the relativistic accretion disk of GRS 1915+105

Variable line profiles due to non-axisymmetric patterns in an accretion disc around a rotating black hole

scholarly article by Karas V. et al published 2001 in Publications of the Astronomical Society of Japan

Variation in the primary and reprocessed radiation from an orbiting spot around a black hole

scholarly article by Dovciak M. et al published 2008 in Monthly Notices of the Royal Astronomical Society

Warm absorber and truncated accretion disc in IRAS 05078+1626

scientific article published in January 2010

X-ray spectra and polarization from accreting black holes: polarization from an orbiting spot

scholarly article by Dovciak M. et al published 2006 in Astronomische Nachrichten

X-ray spectral signatures of spinning black holes

scientific article published in January 1999

XIPE: the X-ray imaging polarimetry explorer

scientific article (publication date: 24 August 2013)

XIPE: the x-ray imaging polarimetry explorer

article

eXTP: Enhanced X-ray Timing and Polarization mission

article

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