KOTRLOVÁ, Andrea, Zdeněk STUCHLÍK and Gabriel TÖRÖK. Multi-Resonance Orbital Model Applied to High-Frequency Quasi-Periodic Oscillations Observed in Sgr A*. Acta Astronomica. PL - Polská republika, 2013, vol. 63, No 2, p. 275-292. ISSN 0001-5237. |
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@article{42704, author = {Kotrlová, Andrea and Stuchlík, Zdeněk and Török, Gabriel}, article_location = {PL - Polská republika}, article_number = {2}, keywords = {Accretion; accretion disks; X-rays: general; Black hole physics; X-rays: individuals: Sgr A*}, language = {eng}, issn = {0001-5237}, journal = {Acta Astronomica}, title = {Multi-Resonance Orbital Model Applied to High-Frequency Quasi-Periodic Oscillations Observed in Sgr A*}, volume = {63}, year = {2013} }
TY - JOUR ID - 42704 AU - Kotrlová, Andrea - Stuchlík, Zdeněk - Török, Gabriel PY - 2013 TI - Multi-Resonance Orbital Model Applied to High-Frequency Quasi-Periodic Oscillations Observed in Sgr A* JF - Acta Astronomica VL - 63 IS - 2 SP - 275-292 EP - 275-292 SN - 00015237 KW - Accretion KW - accretion disks KW - X-rays: general KW - Black hole physics KW - X-rays: individuals: Sgr A* N2 - The multi-resonance orbital model of high-frequency quasi-periodic oscillations (HF QPOs) enables precise determination of the black hole dimensionless spin a if observed set of oscillations demonstrates three (or more) commensurable frequencies. The black hole spin a is related to the frequency ratio only, while its mass M is related to the frequency magnitude. The model is applied to the triple frequency set of HF QPOs observed in Sgr A* source with frequency ratio 3 : 2: 1. Acceptable versions of themulti-resonance model are determined by the restrictions on the Sgr A* supermassive black hole mass. The version of strong resonances related to the black hole "magic" spin a = 0.983 is acceptable but the version demonstrating the best agreement with the mass restrictions predicts spin a = 0.980. ER -
KOTRLOVÁ, Andrea, Zdeněk STUCHLÍK and Gabriel TÖRÖK. Multi-Resonance Orbital Model Applied to High-Frequency Quasi-Periodic Oscillations Observed in Sgr A*. \textit{Acta Astronomica}. PL - Polská republika, 2013, vol.~63, No~2, p.~275-292. ISSN~0001-5237.
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