D
2007
QPOS and resonance in accretion disks
ABRAMOWICZ, Marek and Gabriel TÖRÖK
Basic information
Original name
QPOS and resonance in accretion disks
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
Type of outcome
Stať ve sborníku
Field of Study
10308 Astronomy
Confidentiality degree
není předmětem státního či obchodního tajemství
Organization unit
Faculty of Philosophy and Science in Opava
Keywords in English
accretion, accretion disks, black hole physics, hydrodynamics, neutron stars
Tags
International impact
Links
MSM4781305903, plan (intention).
V originále
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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