https://doi.org/10.1140/epjd/s10053-023-00630-8
Regular Article – Optical Phenomena and Photonics
Dusty plasma in active galactic nuclei
1
Center for Theoretical Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668, Warsaw, Poland
2
Department of Theoretical Physics and Astrophysics, Faculty of Science, Masaryk University, Kotlářská 2, 611 37, Brno, Czech Republic
3
Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Bartycka 18, 00-716, Warsaw, Poland
4
School of Physics and Astronomy, Tel Aviv University, 69978, Tel Aviv, Israel
5
Laboratório Nacional de Astrofísica, MCTI, R. dos Estados Unidos 154, 37504-364, Itajubá, Brazil
6
Inter University Center for Astronomy and Astrophysics, 411007, Pune, Maharashtra, India
7
Astronomical Institute, Czech Academy of Sciences, Boční II 1401, 14100, Prague, Czech Republic
8
Departamento de Astronomía, Universidad de Chile, Camino del Observatorio 1515, Casilla 36-D Correo Central, Santiago, Chile
Received:
20
November
2022
Accepted:
6
March
2023
Published online:
6
April
2023
For many years we have known that dust in the form of a dusty-molecular torus is responsible for the obscuration in active galactic nuclei (AGN) at large viewing angles and, thus, for the widely used phenomenological classification of AGN. Recently, we gained new observational and theoretical insights into the geometry of the torus region and the role of dust in the dynamics of emerging outflows and failed winds. We will briefly touch on all these aspects and provide a more detailed update of our dust-based model (FRADO—Failed Radiatively Accelerated Dusty Outflow) capable of explaining the processes of formation of Balmer lines in AGN.
© The Author(s) 2023
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