FRADO model of the Broad Line Region in Active Galactic Nuclei

0500050 - ASÚ 2019 RIV PL eng C - Conference Paper (international conference)
Czerny, B. - Karas, Vladimír - Li, Y.-R. - Kunneriath, D. - Sredzinska, J. - Panda, S. - Sniegowska, M. - Wildy, C.
FRADO model of the Broad Line Region in Active Galactic Nuclei.
XXXVIII Polish Astronomical Society Meeting. Warszawa: Polskie Towarzystwo Astronomiczne, 2018, s. 264-266. Proceedings of the Polish Astronomical Society, 7. ISBN 9788395043000. ISSN 2545-1022.
[Polish Astronomical Society Meeting /38th/. Zielona Góra (PL), 11.09.2017-14.09.2017]
Grant - others:AV ČR(CZ) PAN-17-19
Program: Bilaterální spolupráce
Institutional support: RVO:67985815
Keywords : Broad Line Region * motion of dusty clouds * active galaxies
OECD category: Astronomy (including astrophysics,space science)
https://www.pta.edu.pl/pliki/proc/vol7/v7p264.pdf

Broad Emission Lines are the most characteristic features of active galaxies but the mechanism of the line formation is still under debate. In 2011 we proposed that the Hβ lines are formed in a Failed Radiatively Accelerated Dusty Outflow (FRADO). In this paper we investigate this mechanism in more detail. We calculated the motion of dusty clouds taking into account the dust evaporation which arises when they are additionally illuminated by the central source. Our model explains the location and extension of the Broad Line Region as well as its large turbulent motion superimposed on Keplerian rotation. However, an enhancement of the dust opacity or additional mechanisms are necessary to push the material high enough above the disk.
Permanent Link: http://hdl.handle.net/11104/0292210