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Exploring the X-ray universe via timing: mass of the active galactic nucleus black hole XMMUJ134736.6+173403

Published online by Cambridge University Press:  29 January 2021

Eva Šrámková ,
K. Goluchová ,
G. Török ,
Marek A. Abramowicz ,
Z. Stuchlík  and
Jiří Horák
Eva Šrámková
Affiliation:
Research Centre for Computational Physics and Data Processing, Institute of Physics, Silesian University in Opava, Bezručovo nám. 13, CZ-746 01 Opava, Czech Republic email: eva.sramkova@fpf.slu.cz
K. Goluchová
Affiliation:
Research Centre for Computational Physics and Data Processing, Institute of Physics, Silesian University in Opava, Bezručovo nám. 13, CZ-746 01 Opava, Czech Republic email: eva.sramkova@fpf.slu.cz
G. Török
Affiliation:
Research Centre for Computational Physics and Data Processing, Institute of Physics, Silesian University in Opava, Bezručovo nám. 13, CZ-746 01 Opava, Czech Republic email: eva.sramkova@fpf.slu.cz
Marek A. Abramowicz
Affiliation:
Research Centre for Computational Physics and Data Processing, Institute of Physics, Silesian University in Opava, Bezručovo nám. 13, CZ-746 01 Opava, Czech Republic email: eva.sramkova@fpf.slu.cz
Z. Stuchlík
Affiliation:
Research Centre for Computational Physics and Data Processing, Institute of Physics, Silesian University in Opava, Bezručovo nám. 13, CZ-746 01 Opava, Czech Republic email: eva.sramkova@fpf.slu.cz
Jiří Horák
Affiliation:
Astronomical Institute, Academy of Sciences, Bočn II 1401, CZ-14131 Prague, Czech Republic
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Abstract

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A strong quasi-periodic modulation has recently been revealed in the X-ray flux of the X-ray source XMMUJ134736.6+173403. The two observed twin-peak quasiperiodic oscillations (QPOs) exhibit a 3:1 frequency ratio and strongly support the evidence for the presence of an active galactic nucleus black hole (AGN BH). It has been suggested that detections of twin-peak QPOs with commensurable frequency ratios and scaling of their periods with BH mass could provide the basis for a method intended to determine the mass of BH sources, such as AGNs. Assuming the orbital origin of QPOs, we calculate the upper and lower limit on the AGN BH mass M, reaching M ≍ 107–109M⊙. Compared to mass estimates of other sources, XMMUJ134736.6+173403 appears to be the most massive source with commensurable QPO frequencies, and its mass represents the current observational upper limit on the AGN BH mass obtained from the QPO observations.

Keywords

black hole physicsaccretionaccretion disks
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S356: Nuclear Activity in Galaxies Across Cosmic Time , October 2019 , pp. 348 - 350
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of International Astronomical Union

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