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The broad line emission from the AGN 3C 390.3: complex broad-line region and perturbation in accretion disk

Published online by Cambridge University Press:  21 February 2013

Ilić Dragana ,
Luka Č. Popović ,
Alla I. Shapovalova ,
Alexander N. Burenkov ,
Vahram H. Chavushyan ,
Andjelka Kovačević  and
Wolfram Kollatschny
Ilić Dragana
Affiliation:
Department of Astronomy, Faculty of Mathematics, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia, email: dilic@matf.bg.ac.rs
Luka Č. Popović
Affiliation:
Astronomical Observatory, Volgina 7, 11160 Belgrade 74, Serbia
Alla I. Shapovalova
Affiliation:
Special Astrophysical Observatory of the Russian AS, Nizhnij Arkhyz, Karachaevo-Cherkesia 369167, Russia
Alexander N. Burenkov
Affiliation:
Special Astrophysical Observatory of the Russian AS, Nizhnij Arkhyz, Karachaevo-Cherkesia 369167, Russia
Vahram H. Chavushyan
Affiliation:
Instituto Nacional de Astrofísica, Óptica y Electrónica, Apartado Postal 51, CP 72000, Puebla, Pue. México
Andjelka Kovačević
Affiliation:
Department of Astronomy, Faculty of Mathematics, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia, email: dilic@matf.bg.ac.rs
Wolfram Kollatschny
Affiliation:
Institut für Astrophysik, Friedrich-Hund-Platz 1, Göttingen, Germany
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Abstract

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From 13-years of the spectral optical monitoring of a well-known broad-line radio galaxy 3C 390.3 we concluded that the geometry of the broad emission-line region is complex, while still the main part of the emission is coming from the accretion disk. Here we present part of the analysis of the broad Hα and Hβ emission lines, which are showing highly variable double-peaked profiles during the monitoring period (1995-2007), with the aim to probe the accretion disk properties. The disk-like geometry plays a dominant role, but the variability of Hα and Hβ line profiles and intensities shows a presence of an additional emission-line region, that has a different nature for different periods, e.g. in one period the observed variation can be well modeled if one assumes changes in position and size of the emitting disk along the accretion disk.

Keywords

Galaxies: activegalaxies: quasar: individual (3C 390.3)line: profiles
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S290: Feeding Compact Objects: Accretion on All Scales , August 2012 , pp. 205 - 206
Copyright
Copyright © International Astronomical Union 2013

References

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