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

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 broa...

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Bibliographic Details
Published in:Proceedings of the International Astronomical Union 2012-08, Vol.8 (S290), p.205-206
Main Authors: Dragana, Ilić, Popović, Luka Č., Shapovalova, Alla I., Burenkov, Alexander N., Chavushyan, Vahram H., Kovačević, Andjelka, Kollatschny, Wolfram
Format: Article
Language:English
Subjects:
Accretion disks
Astronomy
Astrophysics
Contributed Papers
Quasars
Spectrum analysis
Stars & galaxies
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Summary: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.
ISSN:1743-9213
1743-9221
DOI:10.1017/S1743921312019631