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Optical, Infrared and Ultraviolet Observations of Active Nuclei

Published online by Cambridge University Press:  30 March 2016

M.S. Longair
M.S. Longair*
Affiliation:
Royal Observatory, Blackford Hill, Edinburgh

Extract

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I have been invited to present a brief review of optical, infrared and ultraviolet observations of active nuclei. I will only describe a small sub-set of these observations, in particular those which I believe are most likely to be important in elucidating the properties of the central energy source to which we attribute the origin of all high energy phenomena. I will therefore restrict my remarks to certain aspects of BL Lac objects, optically violently variable quasars, quasars, Seyfert I galaxies and broad line radio galaxies. If we could understand these systems, we should be able to account for most other types of active nuclei, the Seyfert II galaxies, narrow line radio galaxies, all other types of Markarian galaxy, compact blue galaxy, etc. In my view, the recent observations of NGC 4151 provide us with a benchmark against which we should measure all other observations of active nuclei.

Type
Joint Discussions
Information
Highlights of Astronomy , Volume 6 , 1983 , pp. 443 - 457
Copyright
Copyright © Reidel 1983

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