150 citations · 798 across the 27 of their papers we have counts for
11 papers · 1 filter
The warped young stellar disc in the Galactic Centre
L. Subr, J. Schovancova, P. Kroupa
Within the central parsec of the Galaxy, several tens of young stars orbiting a central supermassive black hole are observed. A subset of these stars forms a coherently rotating di…
Warping the young stellar disc in the Galactic Centre
Ladislav Subr, Jaroslava Schovancova
We examine influence of the circum-nuclear disc (CND) upon the orbital evolution of young stars in the Galactic Centre. We show that gravity of the CND causes precession of the orb…
SMBH feeding and star formation in massive accretion discs
Ladislav Subr
Galactic nuclei are unique laboratories for the study of processes connected with the accretion of gas onto supermassive black holes. At the same time, they represent challenging e…
A new method to create initially mass segregated star clusters in virial equilibrium
L. Subr, P. Kroupa, H. Baumgardt
Mass segregation stands as one of the most robust features of the dynamical evolution of self-gravitating star clusters. In this paper we formulate parametrised models of mass segr…
Enhanced activity of massive black holes by stellar capture assisted by a self-gravitating accretion disc
V. Karas, L. Subr
We study the probability of close encounters between stars from a nuclear cluster and a massive black hole. The gravitational field of the system is dominated by the black hole in…
Interaction between stars and an inactive accretion disc in a galactic core
V. Karas, L. Subr
We discuss the structure of a central stellar cluster whose dynamics is influenced by gravitation of a supermassive black hole and by the dissipative interaction of orbiting stars…
On highly eccentric stellar trajectories interacting with a self-gravitating disc in Sgr A*
L. Subr, V. Karas
We propose that Kozai's phenomenon is responsible for the long-term evolution of stellar orbits near a supermassive black hole. We pursue the idea that this process may be driven b…
Star-disc interactions in a galactic centre and oblateness of the inner stellar cluster
L. Subr, V. Karas, J. -M. Hure
Structure of a quasi-stationary stellar cluster is modelled assuming that it is embedded in the gravitational field of a super-massive black hole. Gradual orbital decay of stellar…
Orbital decay of satellites crossing an accretion disc
V. Karas, L. Subr
Motion of stellar-mass satellites is studied around a massive compact body which is surrounded by a gaseous slab of a stationary accretion disc. The satellites suffer an orbital de…
Variable line profiles due to non-axisymmetric patterns in an accretion disc around a rotating black hole
V. Karas, A. Martocchia, L. Subr
We have explored spectral line profiles due to spiral patterns in accretion discs around black holes. A parametrization was employed for the shape and emissivity of spiral waves, w…
An orbiter crossing an accretion disc
L. Subr, V. Karas
We further investigate the long-term evolution of a trajectory of a stellar-mass orbiter which is gravitationally bound to a massive central body. The orbiter undergoes repetitiona…