We discuss the role that magnetic fields in low-luminosity accretion flows can play in creating and maintaining a multi-phase medium, and show that small clouds or filaments of dense cold gas can dramatically reprocess the 'primary' radiation from tori. In particular, radio emission is suppressed by free-free absorption, and an extra tweak) component appears at optical wavelengths. This is expected to be a common process in various environments in the central regions of active galaxies, such as broad-line regions, accretion disc coronae and jets.

Reprocessing of radiation by multi-phase gas in low-luminosity accretion flows / Celotti, Anna Lisa; Rees, M. J.. - In: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. - ISSN 0035-8711. - 305:3(1999), pp. L41-L44. [10.1046/j.1365-8711.1999.02574.x]

Reprocessing of radiation by multi-phase gas in low-luminosity accretion flows

Celotti, Anna Lisa;
1999-01-01

Abstract

We discuss the role that magnetic fields in low-luminosity accretion flows can play in creating and maintaining a multi-phase medium, and show that small clouds or filaments of dense cold gas can dramatically reprocess the 'primary' radiation from tori. In particular, radio emission is suppressed by free-free absorption, and an extra tweak) component appears at optical wavelengths. This is expected to be a common process in various environments in the central regions of active galaxies, such as broad-line regions, accretion disc coronae and jets.
1999
305
3
L41
L44
Celotti, Anna Lisa; Rees, M. J.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/11641
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