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@article{42108, author = {Kotrlová, Andrea and Stuchlík, Zdeněk and Török, Gabriel}, article_location = {FR - Francouzská republika}, article_number = {0}, doi = {http://dx.doi.org/10.1051/0004-6361/201015029}, keywords = {accretion, accretion disks, stars: neutron, X-rays: binaries}, language = {eng}, issn = {0004-6361}, journal = {Astronomy & Astrophysics}, title = {Resonant radii of kHz quasi-periodic oscillations in Keplerian discs orbiting neutron stars}, volume = {525}, year = {2011} }
TY - JOUR ID - 42108 AU - Kotrlová, Andrea - Stuchlík, Zdeněk - Török, Gabriel PY - 2011 TI - Resonant radii of kHz quasi-periodic oscillations in Keplerian discs orbiting neutron stars JF - Astronomy & Astrophysics VL - 525 SP - 1-5 EP - 1-5 SN - 00046361 KW - accretion, accretion disks, stars: neutron, X-rays: binaries N2 - Exchange of dominance between twin kHz quasi-periodic oscillations (QPOs) observed in some low-mass-X-ray-binaries (LMXBs) suggests the possibility of a resonance between two oscillatory modes. We study the behaviour of the effective gravitational potential around specific resonant radii, and estimate the role of the higher-order terms governing the non-linear, anharmonic forcing. We discuss the impact it has on the mode amplitude in the linear and non-linear regimes. We also discuss a related possibility of lowering of the neutron star mass estimates from the highest observed QPO frequencies. ER -
KOTRLOVÁ, Andrea, Zdeněk STUCHLÍK a Gabriel TÖRÖK. Resonant radii of kHz quasi-periodic oscillations in Keplerian discs orbiting neutron stars. \textit{Astronomy \&{} Astrophysics}. FR - Francouzská republika, 2011, roč.~525, s.~1-5. ISSN~0004-6361. Dostupné z: https://dx.doi.org/10.1051/0004-6361/201015029.
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