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Modelling the light-curves of objects tidally disrupted by a black hole

Published online by Cambridge University Press:  20 January 2011

H. Wozniak ,
G. Hensler ,
U. Kostić ,
A. Gomboc ,
A. Čadež  and
M. Calvani
U. Kostić
Affiliation:
Department of Physics, Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, 1000 Ljubljana, Slovenia
A. Gomboc
Affiliation:
Department of Physics, Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, 1000 Ljubljana, Slovenia
A. Čadež
Affiliation:
Department of Physics, Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, 1000 Ljubljana, Slovenia
M. Calvani
Affiliation:
INAF, Astronomical Observatory of Padova, Vicolo dell’Osservatorio 5, 35122 Padova, Italy
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Abstract

Tidal disruption by massive black holes is a phenomenon, during which a large part ofgravitational energy can be released on a very short time-scale. The time-scales andenergies involved during X-ray and IR flares observed in Galactic centre suggest that theymay be related to tidal disruption events. Furthermore, aftermath of a tidal disruption ofa star by super-massive black hole has been observed in some galaxies, e.g.RX J1242.6-1119A. All these discoveries increased the demand for tools for tidaldisruption study in curved space-time. Here we summarise our study of general relativisticeffects on tidal deformation of stars and compact objects.

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References

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