D 2007

Modelling the twin peak QPO distribution in the atoll source 4U 1636-53

BAKALA, Pavel, Zdeněk STUCHLÍK and Gabriel TÖRÖK

Basic information

Original name

Modelling the twin peak QPO distribution in the atoll source 4U 1636-53

Authors

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

Stať ve sborníku

Field of Study

10308 Astronomy

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

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

International impact

Links

LC06014, research and development project. MSM4781305903, plan (intention).
Změněno: 3/12/2020 14:24, Mgr. Pavlína Jalůvková

Abstract

V originále

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.