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arXiv · 1912.03118

FeII strength in NLS1s -- dependence on the viewing angle and FWHM

Swayamtrupta Panda·Paola Marziani·Bożena Czerny
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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, $\mathrm{R_{FeII}}$ on the broad H$β$ FWHM (i.e. the line dispersion) and the inclination angle ($θ$), assuming fixed values for the Eddington ratio ($\mathrm{L_{bol}}/\mathrm{L_{Edd}}$), black hole mass ($\mathrm{M_{BH}}$), spectral energy distribution (SED) shape, cloud density (n$\rm{_{H}}$) and composition.

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Swayamtrupta Panda, Paola Marziani, Bożena Czerny. 2019-12-03. FeII strength in NLS1s -- dependence on the viewing angle and FWHM. https://doi.org/10.1017/s1743921320003269

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