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@article{42701,
author = {Kotrlová, Andrea and Stuchlík, Zdeněk and Török, Gabriel},
article_location = {FR - Francouzská republika},
article_number = {A10},
doi = {http://dx.doi.org/10.1051/0004-6361/201219724},
keywords = {Accretion; accretion disks; X-rays: binaries; black hole physics; stars: neutron},
language = {eng},
issn = {0004-6361},
journal = {Astronomy & Astrophysics},
title = {Multi-resonance orbital model of high-frequency quasi-periodic oscillations: possible high-precision determination of black hole and neutron star spin},
url = {http://www.aanda.org/articles/aa/abs/2013/04/aa19724-12/aa19724-12.html},
volume = {552},
year = {2013}
}
TY - JOUR
ID - 42701
AU - Kotrlová, Andrea - Stuchlík, Zdeněk - Török, Gabriel
PY - 2013
TI - Multi-resonance orbital model of high-frequency quasi-periodic oscillations: possible high-precision determination of black hole and neutron star spin
JF - Astronomy & Astrophysics
VL - 552
IS - A10
SN - 00046361
KW - Accretion
KW - accretion disks
KW - X-rays: binaries
KW - black hole physics
KW - stars: neutron
UR - http://www.aanda.org/articles/aa/abs/2013/04/aa19724-12/aa19724-12.html
N2 - Using known frequencies of the twin-peak high-frequency quasiperiodic oscillations (HF QPOs) and known mass of the central black hole, the black-hole dimensionless spin can be determined by assuming a concrete version of the resonance model. However, a wide range of observationally limited values of the black hole mass implies low precision of the spin estimates. We discuss the possibility of higher precision for the black hole spin measurements in the framework of a multi-resonance model inspired by observations of more than two HF QPOs in the black hole systems, which are expected to occur at two (or more) different radii of the accretion disc. This framework is also applied in a modified form to the neutron star systems. In the multi-resonant model,the twin-peak resonances are combined properly to give the observed frequency set. For the black hole systems we focus on the special case of duplex frequencies, when the top, bottom, or mixed frequency is common at two different radii w
ER -
KOTRLOVÁ, Andrea, Zdeněk STUCHLÍK and Gabriel TÖRÖK. Multi-resonance orbital model of high-frequency quasi-periodic oscillations: possible high-precision determination of black hole and neutron star spin. \textit{Astronomy \&{} Astrophysics}. FR - Francouzská republika, 2013, vol.~552, A10, 41 pp. ISSN~0004-6361. Available from: https://dx.doi.org/10.1051/0004-6361/201219724.
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