Spectropolarimetry of Broad Hα Lines and Geometry of the BLR
Abstract
In a small fraction of Broad Line Radio Galaxies (BLRG) and Seyfert 1 galaxies, the polarization position angle rotates across the broad emission lines, especially at H_alpha. An understanding of this behavior can potentially yield important information on the scattering geometry in the nucleus. We show two examples of this phenomenon, 3C 445, a BLRG, and Mrk 231, a Seyfert 1, and present an equatorial scattering model that explains some of its features in a straightforward way.
- Publication:
-
Mass Outflow in Active Galactic Nuclei: New Perspectives
- Pub Date:
- 2002
- DOI:
- 10.48550/arXiv.astro-ph/0106168
- arXiv:
- arXiv:astro-ph/0106168
- Bibcode:
- 2002ASPC..255..255C
- Keywords:
-
- Astrophysics
- E-Print:
- 6 pages, 3 figures. To appear in Mass Outflow in Active Galactic Nuclei