HF QPOs in the neutron star binary system XTE J1701-462 fitted by the model of oscillating string loops

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F14%3A%230005098" target="_blank" >RIV/47813059:19240/14:#0005098 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
HF QPOs in the neutron star binary system XTE J1701-462 fitted by the model of oscillating string loops
Original language description
Axisymmetric string loops oscillating around a stable equilibrium position in the Kerr background are applied to explain the special set of frequencies related to the high-frequency quasiperiodic oscillations observed in the low mass X-ray binary XTE J1701-462 containing a neutron star. Frequencies of the radial and vertical string loop oscillations are determined by the mass M and dimensionless spin a of the neutron star, and by dimensionless parameter ! describing combined effects of the string loop tension and its angular momentum. Equilibrium position of the string loop is given by its angular momentum and energy. The string-loop oscillation model can explain the observed kHz frequencies, but the stringy parameter ! cannot be the same for all the three HF QPO observations in the XTE J1701-462 source; the limits on the acceptable values of ! are given in dependence on the spacetime parameters M and a. However, the model implies restriction M > 3.3M_{sun} on the neutron star mass tha
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of RAGtime 14-16: Workshops on black holes and neutron stars
ISBN
978-80-7510-126-6
ISSN
2336-5668
e-ISSN
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Number of pages
13
Pages from-to
235-247
Publisher name
Silesian University in Opava
Place of publication
Opava
Event location
Opava, Praha
Event date
Jan 1, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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