Multi-resonance orbital model of HF QPOs

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F13%3A%230004629" target="_blank" >RIV/47813059:19240/13:#0004629 - isvavai.cz</a>
Result on the web
<a href="http://journals.cambridge.org/article_S1743921312020182" target="_blank" >http://journals.cambridge.org/article_S1743921312020182</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1017/S1743921312020182" target="_blank" >10.1017/S1743921312020182</a>

Result language
angličtina
Original language name
Multi-resonance orbital model of HF QPOs
Original language description
Using known frequencies of the twin peak high-frequency quasiperiodic oscillations (HF QPOs) and known mass M of the central black hole, the black-hole dimensionless spin a can be determined assuming a concrete version of the resonance model. However, large range of observationally limited values of the black hole mass implies a low precision of the spin estimates. We discuss the possibility of higher precision of the black hole spin a measurements in the framework of multi-resonance model inspired by observations of more than two HF QPOs in some black hole sources. We determine the spin and mass dependence of the twin peak frequencies with a general rational ratio n:m assuming a non-linear resonance of oscillations with the epicyclic and Keplerian frequencies or their combinations. In the multi-resonant model, the twin peak resonances are combined properly to give the observed frequency set. We focus on the special case of duplex frequencies, when the top, bottom, or mixed frequency i
Czech name
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Czech description
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Project
<a href="/en/project/GA202%2F09%2F0772" target="_blank" >GA202/09/0772: Current problems of gravitation, general relativity and relativistic astrophysics</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the International Astronomical Union, Symposium No. 290: Feeding compact objects: Accretion on all scales
ISBN
978-1-107-03379-5
ISSN
1743-9221
e-ISSN
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Number of pages
2
Pages from-to
315-316
Publisher name
Cambridge University Press
Place of publication
Cambridge, UK
Event location
Beijing, China
Event date
Aug 20, 2012
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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