Radiation pressure on dust explains the Low Ionized Broad Emission Lines in Active Galactic Nuclei
arXiv:2111.14963 · doi:10.1051/0004-6361/202142806
Abstract
Broad emission lines 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 follow a non-hydrodynamical single-cloud approach to the BLR dynamics based on the dust-driving model of Czerny & Hryniewicz. We previously showed in details that the 2.5D version of the model could provide us with the 3D geometry of the BLR. In this paper, we provide a large grid of results based on which we aim at testing the model with calculation of 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 that regulates the strength of the radiation pressure. We also show that the model can appropriately explain the low ionized broad emission lines of the mean spectrum of quasars, such as MgII and Hbeta.
11 pages, 6 figures, Accepted for publication in A&A
References in corpus (22)
- A Catalog of Quasar Properties from SDSS DR7
- Magnetized Gas Clouds can Survive Acceleration by a Hot Wind
- Broad-line Balmer Decrements in Blue Active Galactic Nuclei
- Dust inflated accretion disc as the origin of the Broad Line Region in Active Galactic Nuclei
- Modeling reverberation mapping data I: improved geometric and dynamical models and comparison with cross-correlation results
- Self-shadowing Effects of Slim Accretion Disks in Active Galactic Nuclei: Diverse Appearance of the Broad-line Region
- Long-Term Profile Variability of Double Peaked Emission Lines in Active Galactic Nuclei
- Failed radiatively Accelerated Dusty Outflow model of the Broad Line Region in Active Galactic Nuclei. I. Analytical solution
- The structure of the Mg II broad line emitting region in Type 1 AGNs
- Full SED fitting with the KOSMA-τ PDR code - I. Dust modelling
- Evolving Molecular Cloud Structure and the Column Density Probability Distribution Function
- The picture of BLR in 2.5-D FRADO: Dynamics & Geometry
- Reverberation Mapping Measurements of Black Hole Masses and Broad-Line Region Kinematics in Mrk 817 and NGC 7469
- The dust-gas AGN torus as constrained from X-ray and mid-infrared observations
- A Non-parametric Approach to Constrain the Transfer Function in Reverberation Mapping
- Test of the Formation mechanism of the Broad Line Region in Active Galactic Nuclei
- Spectropolarimetry of low redshift Quasars: origin of the polarization and implications for black hole mass estimates
- On Synthetic Absorption Line Profiles of Thermally Driven Winds from Active Galactic Nuclei
- Comparison of The UV and Optical Fe II Emission in Type 1 AGNs
- BLR size in Realistic FRADO Model: The role of shielding effect
- Polarization in broad emission lines of Active Galactic Nuclei
- Qwind3: UV line-driven accretion disc wind models for AGN feedback
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- Accretion disks, quasars and cosmology: meandering towards understanding
- Dust-driven wind as a model of Broad Absorption Line quasars
- Dusty plasma in active galactic nuclei
- Broad-line region in active galactic nuclei: Dusty or dustless?
- Efficient Analysis Routines for Single and Double Peaked Type 2 AGN Spectra
- Application of the FRADO model of BLR formation to the Seyfert galaxy NGC 5548 and the first step toward determining the Hubble constant
- Understanding the Universal Dust Attenuation Scaling Relation of Star-Forming Galaxies
- The Wind Dynamics of Super-Eddington Sources in FRADO
- H line shape and radius-luminosity relation in 2.5D FRADO
- Quasar Main Sequence unfolded by 2.5D FRADO (Natural expression of Eddington ratio, black hole mass, and inclination)