Detailed Information on Publication Record
2009
Reversal of the amplitude difference of kHz QPOs in six atoll sources
TÖRÖK, GabrielBasic information
Original name
Reversal of the amplitude difference of kHz QPOs in six atoll sources
Authors
Edition
Astronomy & Astrophysics, FR - Francouzská republika, 2009, 0004-6361
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10308 Astronomy
Confidentiality degree
není předmětem státního či obchodního tajemství
Organization unit
Institute of physics in Opava
UT WoS
000265280500003
Keywords in English
X-rays, binaries, Stars:neutron, Accretion, accretion disks
Tags
Tags
International impact
Links
MSM4781305903, plan (intention).
Změněno: 6/4/2021 13:45, Mgr. Pavlína Jalůvková
Abstract
V originále
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.