Abstract
Here we discuss the possibility of super-massive binary black hole (SMBBH) detection, using the shifts of the broad lines emitted from a binary system. We perform a number of simulations of shapes and shifts of \(H_{\beta}\) lines emitted from SMBBHs, taking into account the emission from two different regions located around both black holes, and kinematical effects which should be present in a SMBBH. In the model we connect the parameters of the lines with the mass of black holes and find that the peak shift depends, not only on kinematical effects of system rotation and black hole mass ratio, but it is also a function of the individual masses of the two black holes (BHs).
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Acknowledgements
This work is a part of the project (176001) “Astrophysical Spectroscopy of Extragalactic Objects,” supported by the Ministry of Science and Technological Development of Serbia.
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This article belongs to the Topical Collection: Line Shifts in Astrophysics and Laboratory Plasma. Guest Editors: Jack Sulentic, Luka C. Popovic.
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Simić, S., Popović, L.Č. Line shifts and sub-pc super-massive binary black holes. Astrophys Space Sci 361, 59 (2016). https://doi.org/10.1007/s10509-015-2647-2
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DOI: https://doi.org/10.1007/s10509-015-2647-2