Cones of ionizing radiation in Seyfert galaxies: probing the central engine.
Abstract
Highly ionized large scale structures have recently been observed in many active galaxies. There is evidence that photoionization by the active nucleus may be the most relevant mechanism, responsible of the excitation of the gas. The authors use a simple model for a thick accretion disk around a supermassive black hole and a photoionization code to make theoretical predictions. The results are compared with observational data trying to constrain the disk parameters and the clouds conditions.
- Publication:
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European Southern Observatory Conference and Workshop Proceedings
- Pub Date:
- July 1989
- Bibcode:
- 1989ESOC...32..399A
- Keywords:
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- Seyfert Galaxies: Photoionization