Detailed Information on Publication Record
2005
A possible 3 : 2 orbital epicyclic resonance in QPO frequencies of Sgr A
TÖRÖK, GabrielBasic information
Original name
A possible 3 : 2 orbital epicyclic resonance in QPO frequencies of Sgr A
Authors
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
UT WoS
000231358000005
Keywords in English
black hole physics; X-rays : individuals : SgrA
Tags
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.