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Multifrequency Variability of AGN's: Continuum Variations from the Near IR to the X-rays

Published online by Cambridge University Press:  19 July 2016

J. Clavel
J. Clavel*
Affiliation:
ESA, ESTEC/SAI Postbus 299 2200-AG Noordwijk, The Netherlands

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Because they emit copiously over more than 10 decades in frequency, Active Galactic Nuclei (AGN) cannot be understood without the help of multiwavelength observations. On the other hand, variability monitoring has also proven to be invaluable in understanding the continuum and line emission process as well as the geometry of the innermost regions in these objects. Indeed, at the heart of AGN's lies an object which is so compact that the only way to probe its structure is the study of the temporal evolution of its spectrum. The equivalent resolution which can be achieved in this way is of the order of 10 microarcsecs, far beyond the capability of any UV or optical telescope.

Type
Variability
Information
Symposium - International Astronomical Union , Volume 159: Multi-Wavelength Continuum Emission of AGN , 1994 , pp. 131 - 143
Copyright
Copyright © Kluwer 1994 

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