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Variations of geometrical and physical characteristics of innermost regions of active galactic nuclei on time-scale of years

Published online by Cambridge University Press:  01 August 2006

Nikolai G. Bochkarev  and
Alla I. Shapovalova
Nikolai G. Bochkarev
Affiliation:
Sternberg Astronomical Institute of Lomonosov Moscow State University Universitetskij prosp., 13, Moscow, 119992, Russia email: [email protected]
Alla I. Shapovalova
Affiliation:
Special Astrophysical Observatory of Russian Academy of Science, Nizhnij Arkhys, Karachaevo-Cherkesia, [email protected]
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Abstract

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Several examples of observational evidence of possible variations of geometrical and physical characteristics of the Broad Line Regions (BLR) of AGN on the time-scale of years are listed. Cases of accretion disk size variations and variable input of jets in BLR formation are presented.

Keywords

Galaxies: active – galaxies: individual (NGC 4151, NGC 5548, 3C390.3, Mrk 79, PG 1211+143, Fairall 9) – jets – nuclei – emission lines – accretion disks
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S238: Black Holes from Stars to Galaxies – Across the Range of Masses , August 2006 , pp. 327 - 328
Copyright
Copyright © International Astronomical Union 2007

References

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