J 2005

A possible 3 : 2 orbital epicyclic resonance in QPO frequencies of Sgr A

TÖRÖK, Gabriel

Basic information

Original name

A possible 3 : 2 orbital epicyclic resonance in QPO frequencies of Sgr A

Authors

TÖRÖK, Gabriel

Edition

ASTRONOMY & ASTROPHYSICS, LES ULIS CEDEX A, EDP SCIENCES S A, 2005, 0004-6361

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Confidentiality degree

není předmětem státního či obchodního tajemství

Organization unit

Faculty of Philosophy and Science in Opava

DOI

http://dx.doi.org/10.1051/0004-6361:20042558

UT WoS

000231358000005

Keywords in English

black hole physics; X-rays : individuals : SgrA

Tags

MSM4781305903

Tags

International impact, Reviewed
Změněno: 12/4/2021 14:15, RNDr. Kateřina Klimovičová, Ph.D.

Abstract

V originále

A recent measurement of double peak QPOs frequencies in Sgr A* is consistent with the 3: 2 ratio. The same ratio is firmly established by previous observations in all double peaked kHz QPOs in microquasars and theoretically explained by orbital epicyclic resonances excited in nearly Keplerian accretion flow in a black hole's strong gravity. If confirmed, the 3: 2 ratio of double peak QPOs in Sgr A* will be of a fundamental importance for the black hole accretion theory, by providing another clear argument that the accretion disk oscillations are indeed governed by non-linear, strong-gravity physics.
Displayed: 22/11/2024 22:41