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@inproceedings{42066,
author = {Bakala, Pavel and Stuchlík, Zdeněk and Šrámková, Eva and Török, Gabriel},
address = {Opava},
booktitle = {Proceedings of RAGtime 8/9: Workshops on black holes and neutron stars},
keywords = {X-ray, neutron stars, binaries, accretion discs, QPOs, magnetic field},
language = {eng},
location = {Opava},
isbn = {978-80-7248-419-5},
pages = {489-499},
publisher = {Slezská univerzita v Opavě, Filozoficko-přírodovědecká fakulta, Ústav fyziky},
title = {On a multi-resonant origin of high frequency QPOs in the atoll source 4U 1636-53},
year = {2007}
}
TY - JOUR
ID - 42066
AU - Bakala, Pavel - Stuchlík, Zdeněk - Šrámková, Eva - Török, Gabriel
PY - 2007
TI - On a multi-resonant origin of high frequency QPOs in the atoll source 4U 1636-53
PB - Slezská univerzita v Opavě, Filozoficko-přírodovědecká fakulta, Ústav fyziky
CY - Opava
SN - 9788072484195
KW - X-ray, neutron stars, binaries, accretion discs, QPOs, magnetic field
N2 - The kHz quasiperiodic oscillations (QPOs) observed in low-mass X-ray neutron star binaries are most likely connected to the orbitalmotion in the accretion disc and show datapoint clustering of frequency ratio between the upper and lower QPOs in small natural numbers. It is shown for the atoll source 4U 1636-53 that using the Hartle-Thorne metric to describe the neutron star spacetime, the data clustered around the frequency ratios 3/2 and 5/4 could be fitted by three models (Relativistic Precession, Vertical Precession and Total Precession) involving the hot spot orbital motion with Keplerian, radial epicyclic and vertical epicyclic frequencies.
ER -
BAKALA, Pavel, Zdeněk STUCHLÍK, Eva ŠRÁMKOVÁ and Gabriel TÖRÖK. On a multi-resonant origin of high frequency QPOs in the atoll source 4U 1636-53. In \textit{Proceedings of RAGtime 8/9: Workshops on black holes and neutron stars}. Opava: Slezská univerzita v Opavě, Filozoficko-přírodovědecká fakulta, Ústav fyziky, 2007, p.~489-499. ISBN~978-80-7248-419-5.
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