Article ID Journal Published Year Pages File Type
1780079 New Astronomy Reviews 2009 7 Pages PDF
Abstract

The broad emission lines (BELs) in spectra of type 1 Active Galactic Nuclei (AGN) can be very complex, indicating a complex broad line region (BLR) geometry. According to the standard unification model one can expect an accretion disk around a supermassive black hole in all AGN. Therefore, a disk geometry is expected in the BLR. However, a small fraction of BELs show double-peaked profiles which indicate the disk geometry. Here, we discuss a two-component model, assuming an emission from the accretion disk and one additional emission from surrounding region. We compared the modeled BELs with observed ones (mostly broad Hα and Hβ profiles) finding that the model can well describe single-peaked and double-peaked observed broad line profiles.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Astronomy and Astrophysics
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