Test of the string loop oscillation model using kHz quasiperiodic oscillations in a neutron star ...

@article{46085,
   author = {Kološ, Martin and Stuchlík, Zdeněk},
   article_location = {US - Spojené státy americké},
   article_number = {3},
   doi = {http://dx.doi.org/10.1007/s10714-015-1863-y},
   keywords = {XTE J1701-407; QPOs; string loop},
   language = {eng},
   issn = {0001-7701},
   journal = {General Relativity and Gravitation},
   title = {Test of the string loop oscillation model using kHz quasiperiodic oscillations in a neutron star binary},
   url = {https://link.springer.com/article/10.1007/s10714-015-1863-y},
   volume = {47},
   year = {2015}
}

TY  - JOUR
ID  - 46085
AU  - Kološ, Martin - Stuchlík, Zdeněk
PY  - 2015
TI  - Test of the string loop oscillation model using kHz quasiperiodic oscillations in a neutron star binary
JF  - General Relativity and Gravitation
VL  - 47
IS  - 3
SP  - "27-1"-"27-23"
EP  - "27-1"-"27-23"
SN  - 00017701
KW  - XTE J1701-407
KW  - QPOs
KW  - string loop
UR  - https://link.springer.com/article/10.1007/s10714-015-1863-y
N2  - The model of current-carrying string loop oscillations is tested to explain the special set of frequencies related to the high-frequency quasiperiodic oscillations (HF QPOs) observed recently in the low-mass X-ray binary XTE J1701-407 containing a neutron star. The external geometry of the neutron star is approximated by the Kerr geometry, introducing errors not exceeding 10% for slowly rotating massive neutron stars. The frequencies of the radial and vertical string loop oscillations are then governedby the mass M and dimensionless spin a of the neutron star, and by the dimensionless parameter omega describing combined effects of the string loop tension and its angular momentum. It is explicitly demonstrated that the string-loop oscillation model canexplain the observed kHz frequencies for the neutron star parameters restricted to the intervals 0.2 < a < 0.4 and 2.1 < M/M_{circle dot} < 2.5. However, the stringy parameter omega cannot be the same for all the three HF QPO observation
ER  - 

KOLOŠ, Martin and Zdeněk STUCHLÍK. Test of the string loop oscillation model using kHz quasiperiodic oscillations in a neutron star binary. \textit{General Relativity and Gravitation}. US - Spojené státy americké, 2015, vol.~47, No~3, p.~''27-1''-''27-23'', 23 pp. ISSN~0001-7701. Available from: https://dx.doi.org/10.1007/s10714-015-1863-y.