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Black hole mass measurements in AGN: Polarization in broad emission lines

Published online by Cambridge University Press:  07 April 2020

Luka Č. Popović ,
Victor L. Afanasiev  and
Djordje Savić
Luka Č. Popović
Affiliation:
Astronomical Observatory, 11160 Belgrade, Serbia, email: [email protected]; [email protected]
Victor L. Afanasiev
Affiliation:
Special Astrophysical Observatory of the Russian AS, Nizhnij Arkhyz, Karachaevo-Cherkesia 369167, Russia email: [email protected]
Djordje Savić
Affiliation:
Astronomical Observatory, 11160 Belgrade, Serbia, email: [email protected]; [email protected]
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Abstract

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We present a new method for supermassive black hole (SMBH) mass measurements in Type 1 active galactic nuclei (AGN) using polarization angle across broad lines. This method gives measured masses which are in a good agreement with reverberation estimates. Additionally, we explore the possibilities and limits of this method using the STOKES radiative transfer code taking a dominant Keplerian motion in the broad line region (BLR). We found that this method can be used for the direct SMBH mass estimation in the cases when in addition to the Kepler motion, radial inflows or vertical outflows are present in the BLR. Some advantages of the method are discussed.

Keywords

polarizationspectral line shapesactive galactic nucleiblack holes: masses
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S342: Perseus in Sicily: From Black Hole to Cluster Outskirts , May 2018 , pp. 1 - 4
Copyright
© International Astronomical Union 2020

References

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