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@article{42096, author = {Török, Gabriel}, article_location = {FR - Francouzská republika}, article_number = {3}, doi = {http://dx.doi.org/10.1051/0004-6361/20079026}, keywords = {X-rays, binaries, Stars:neutron, Accretion, accretion disks}, language = {eng}, issn = {0004-6361}, journal = {Astronomy & Astrophysics}, title = {Reversal of the amplitude difference of kHz QPOs in six atoll sources}, volume = {497}, year = {2009} }
TY - JOUR ID - 42096 AU - Török, Gabriel PY - 2009 TI - Reversal of the amplitude difference of kHz QPOs in six atoll sources JF - Astronomy & Astrophysics VL - 497 IS - 3 SP - 661-665 EP - 661-665 SN - 00046361 KW - X-rays, binaries, Stars:neutron, Accretion, accretion disks N2 - AIMS: For six neutron-star atoll sources (4U 1608-52, 4U 1636-53, 4U 0614+09, 4U 1728-34, 4U 1820-30 and 4U 1735-44) we investigate the relationship between the observed fractional rms amplitudes of the twin kHz QPOs. We discuss whether this displays features that could have a physical meaning in terms of the proposed QPO models. RESULTS: For each of the six sources, we find that there is a point in the R domain around which the amplitudes of the two twin kHz QPOs are the same. We find such a point located inside a narrow interval R=1.5 +-3%. Further investigation is needed in the case of two sources to explore this finding, since we have not determined this point in Set II. There is evidence of a similar point close to R = 1.33 or R = 1.25 in the foursources. ER -
TÖRÖK, Gabriel. Reversal of the amplitude difference of kHz QPOs in six atoll sources. \textit{Astronomy \&{} Astrophysics}. FR - Francouzská republika, 2009, roč.~497, č.~3, s.~661-665. ISSN~0004-6361. Dostupné z: https://dx.doi.org/10.1051/0004-6361/20079026.
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