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

@article{41409,
   author = {Török, Gabriel},
   article_location = {LES ULIS CEDEX A},
   article_number = {1},
   doi = {http://dx.doi.org/10.1051/0004-6361:20042558},
   keywords = {black hole physics; X-rays : individuals : SgrA},
   language = {eng},
   issn = {0004-6361},
   journal = {ASTRONOMY & ASTROPHYSICS},
   title = {A possible 3 : 2 orbital epicyclic resonance in QPO frequencies of Sgr A},
   volume = {440},
   year = {2005}
}

TY  - JOUR
ID  - 41409
AU  - Török, Gabriel
PY  - 2005
TI  - A possible 3 : 2 orbital epicyclic resonance in QPO frequencies of Sgr A
JF  - ASTRONOMY & ASTROPHYSICS
VL  - 440
IS  - 1
SP  - 1-4
EP  - 1-4
PB  - EDP SCIENCES S A
SN  - 00046361
KW  - black hole physics
KW  - X-rays : individuals : SgrA
N2  - 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.
ER  - 

TÖRÖK, Gabriel. A possible 3 : 2 orbital epicyclic resonance in QPO frequencies of Sgr A. \textit{ASTRONOMY \&{}amp; ASTROPHYSICS}. LES ULIS CEDEX A: EDP SCIENCES S A, 2005, vol.~440, No~1, p.~1-4. ISSN~0004-6361. Available from: https://dx.doi.org/10.1051/0004-6361:20042558.