Active Galaxies in the UV

Details Active Galaxies in the UV Active Galaxies in the UV

2006-04-21

arxiv.org/abs/astro-ph/0604473v1

Astrophys.SpaceSci.303:123-132,2006

Astronomy and Astrophysics

Astrophysics

29 pages, 13 figures, Ap&SS in press

Scientific paper

10.1007/s10509-005-9019-2

In this article we present different aspects of AGN studies demonstrating the importance of the UV spectral range. Most important diagnostic lines for studying the general physical conditions as well as the metalicities in the central broad line region in AGN are emitted in the UV. The UV/FUV continuum in AGN excites not only the emission lines in the immediate surrounding but it is responsible for the ionization of the intergalactic medium in the early stages of the universe. Variability studies of the emission line profiles of AGN in the UV give us information on the structure and kinematics of the immediate surrounding of the central supermassive black hole as well as on its mass itself.

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