Towards modeling quasi-periodic oscillations of microquasars with oscillating slender tori

@article{42503,
   author = {Bakala, Pavel and Šrámková, Eva and Török, Gabriel and Johanson, M. and Mazur, G. P. and Vincent, F. H.},
   article_location = {FR - Francouzská republika},
   article_number = {A57},
   doi = {http://dx.doi.org/10.1051/0004-6361/201321488},
   keywords = {accretion; accretion disks; black hole physics; relativistic processes},
   language = {eng},
   issn = {0004-6361},
   journal = {Astronomy & Astrophysics},
   title = {Towards modeling quasi-periodic oscillations of microquasars with oscillating slender tori},
   url = {http://www.aanda.org/articles/aa/abs/2013/06/aa21488-13/aa21488-13.html},
   volume = {554},
   year = {2013}
}

TY  - JOUR
ID  - 42503
AU  - Bakala, Pavel - Šrámková, Eva - Török, Gabriel - Johanson, M. - Mazur, G. P. - Vincent, F. H.
PY  - 2013
TI  - Towards modeling quasi-periodic oscillations of microquasars with oscillating slender tori
JF  - Astronomy & Astrophysics
VL  - 554
IS  - A57
SN  - 00046361
KW  - accretion
KW  - accretion disks
KW  - black hole physics
KW  - relativistic processes
UR  - http://www.aanda.org/articles/aa/abs/2013/06/aa21488-13/aa21488-13.html
N2  - Context. One of the often discussed models for high-frequency quasi-periodic oscillations of X-ray binaries is the oscillating torus model, which considers oscillation modes of slender accretion tori. Aims. Here, we aim at developing this model by considering the observable signature of an optically thick slender accretion torus subject to simple periodic deformations. Methods. We compute light curves and power spectra of a slender accretion torus subject to simple periodic deformations: vertical or radial translation, rotation, expansion, and shear. Results. We show that different types of deformations lead to very different Fourier power spectra and therefore could be observationally distinguished. Conclusions. This work is a first step in a longer term study of the observable characteristics of the oscillating torus model. It gives promising perspectives on the possibility of constraining this model by studying the observed power spectra of quasi-periodic oscillations.
ER  - 

BAKALA, Pavel, Eva ŠRÁMKOVÁ, Gabriel TÖRÖK, M. JOHANSON, G. P. MAZUR and F. H. VINCENT. Towards modeling quasi-periodic oscillations of microquasars with oscillating slender tori. \textit{Astronomy \&{} Astrophysics}. FR - Francouzská republika, 2013, vol.~554, A57, 6 pp. ISSN~0004-6361. Available from: https://dx.doi.org/10.1051/0004-6361/201321488.