2007
Modelling the twin peak QPO distribution in the atoll source 4U 1636-53
BAKALA, Pavel; Zdeněk STUCHLÍK and Gabriel TÖRÖKBasic information
Original name
Modelling the twin peak QPO distribution in the atoll source 4U 1636-53
Authors
BAKALA, Pavel; Zdeněk STUCHLÍK and Gabriel TÖRÖK
Edition
Opava, Proceedings of RAGtime 8/9: Workshops on black holes and neutron stars, p. 479-499, 20 pp. 2007
Publisher
Slezská univerzita v Opavě, Filozoficko-přírodovědecká fakulta, Ústav fyziky
Other information
Language
English
Type of outcome
Proceedings paper
Field of Study
10308 Astronomy
Country of publisher
Czech Republic
Confidentiality degree
is not subject to a state or trade secret
Organization unit
Faculty of Philosophy and Science in Opava
ISBN
978-80-7248-419-5
Keywords in English
X-rays, binaries, accretion discs, neutron stars
Tags
Tags
International impact
Links
LC06014, research and development project. MSM4781305903, plan (intention).
Changed: 3/12/2020 14:24, Mgr. Pavlína Jalůvková
Abstract
In the original language
Relation between the lower and upper frequency mode of twin peak quasiperiodic oscilations observed in neutron star X-ray binaries is qualitatively well fitted by the frequency relation following from the relativistic precession model. We compare the expected and observed twin peak QPO distribution in the case of atoll source 4U 1636-53. We find these two distributions highly incompatible.We also find that the observed distribution roughly corresponds to the expected one if an additional consideration of preferred resonant orbits is included. We notice that our findings are relevant for some disc-oscillation QPO models as well.