http://arxiv.org/abs/2111.14963
Broad emission lines (BELs) are the most characteristic features in the spectra of active galaxies. They mostly show either a single-peaked or double-peaked profiles; and originate from a complex dynamics of the likely discrete clouds moving in a spatially extended region so-called Broad Line Region (BLR). We previously showed that our non-hydrodynamical approach to the BLR dynamics based on the dust-driving-based model of Czerny & Hryniewicz (appropriate for the low ionized region of the BLR) strongly depends on the Eddington ratio of the source, and the overall dynamics can provide us with the 3D geometry of the BLR. In this paper, we provide a large grid of results based on which we calculate the spectral line generic profiles. We show that the shape of profiles not only depends on the accretion rate of the source, the black hole mass, and the viewing angle but also it is most significantly affected by the adopted dust-to-gas mass ratio regulating the strength of the radiation pressure.
M. Naddaf and B. Czerny
Wed, 1 Dec 21
70/110
Comments: 11 pages, 5 figures, Submitted to ApJ Letters
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