FeII strength in NLS1s - dependence on the viewing angle and FWHM(Hβ)
Abstract
We address the effect of orientation of the accretion disk plane and the geometry of the broad line region (BLR) in the context of understanding the distribution of quasars along their Main Sequence. We utilize the photoionization code CLOUDY to model the BLR, incorporating the `un-constant' virial factor. We show the preliminary results of the analysis to highlight the co-dependence of the Eigenvector 1 parameter, RFeII on the broad HβFWHM (i.e. the line dispersion) and the inclination angle (θ), assuming fixed values for the Eddington ratio (Lbol/ LEdd), black hole mass (MBH), spectral energy distribution (SED) shape, cloud density (nH) and composition.†
- Publication:
-
Nuclear Activity in Galaxies Across Cosmic Time
- Pub Date:
- January 2021
- DOI:
- arXiv:
- arXiv:1912.03118
- Bibcode:
- 2021IAUS..356..332P
- Keywords:
-
- accretion;
- accretion disks;
- radiation mechanisms: thermal;
- radiative transfer;
- galaxies: active;
- (galaxies:) quasars: emission lines;
- galaxies: Seyfert;
- Astrophysics - High Energy Astrophysical Phenomena;
- Astrophysics - Astrophysics of Galaxies
- E-Print:
- 3 pages, 1 figure, Proceedings of the IAU356: Nuclear Activity in Galaxies across Cosmic Time, Addis Ababa, Ethiopia (7-11 October, 2019)