D 2007

QPOS and resonance in accretion disks

ABRAMOWICZ, Marek and Gabriel TÖRÖK

Basic information

Original name

QPOS and resonance in accretion disks

Authors

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

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

Keywords in English

accretion, accretion disks, black hole physics, hydrodynamics, neutron stars

Tags

Tags

International impact

Links

MSM4781305903, plan (intention).
Changed: 3/12/2020 13:56, Mgr. Pavlína Jalůvková

Abstract

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.