ABRAMOWICZ, Marek and Gabriel TÖRÖK. QPOS and resonance in accretion disks. In REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA, SERIE DE CONFERENCIAS. Mexico: UNIVERSIDAD NACIONAL AUTONOMA MEXICO INSTITUTO ASTRONOMIA, APARTADO POSTAL 70-264, MEXICO CITY 04510, MEXICO, 2007, 7 pp. ISBN 978-970-32-2805-8.
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Basic information
Original name QPOS and resonance in accretion disks
Authors ABRAMOWICZ, Marek and Gabriel TÖRÖK.
Edition Mexico, REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA, SERIE DE CONFERENCIAS, 7 pp. 2007.
Publisher UNIVERSIDAD NACIONAL AUTONOMA MEXICO INSTITUTO ASTRONOMIA, APARTADO POSTAL 70-264, MEXICO CITY 04510, MEXICO
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10308 Astronomy
Confidentiality degree is not subject to a state or trade secret
Organization unit Faculty of Philosophy and Science in Opava
ISBN 978-970-32-2805-8
ISSN 1405-2059
Keywords in English accretion, accretion disks, black hole physics, hydrodynamics, neutron stars
Tags FÚ, MSM4781305903, sbornik
Tags International impact
Links MSM4781305903, plan (intention).
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 3/12/2020 13:56.
Abstract
We review arguments suggesting that millisecond variability detected in the X-ray flux of LMXBs has its origin in oscillation modes of the accretion disk. The twin high-frequency QPOs observed in microquasars seem to be related to the twin kHz QPOs in neutron-star systems, and both phenomena are likely the result of a non-linear resonance in the accretion disk that is possible only in strong-field gravity. A presumed 3:2 eigenfrequency ratio of the resonant modes corresponds to the 3:2 QPO frequency ratio clearly detected in black-hole systems, as well as to the more complex distribution of kHz QPO frequency pairs in neutron stars.
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