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Precession in Extragalactic Parsec-Scale Accretion Disks

Published online by Cambridge University Press:  03 June 2010

Anderson Caproni ,
Mario Livio ,
Zulema Abraham  and
Herman J. Mosquera Cuesta
Anderson Caproni
Affiliation:
Núcleo de Astrofísica Teórica, Universidade Cruzeiro do Sul, Brazil Email: [email protected]
Mario Livio
Affiliation:
Space Telescope Science Institute, USA
Zulema Abraham
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Brazil
Herman J. Mosquera Cuesta
Affiliation:
Instituto de Cosmologia, Relatividade e Astrofísica (ICRA-BR), CBPF, Brazil
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Abstract

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In this work, we study the feasibility of four physical mechanisms for driving jet/disk precession in the galaxies NGC 4258, NGC 1068, 3C 120, OJ 287 and Arp 102B. Given the many observational uncertainties that still exist in the parameters of those AGN, we find that it is difficult to discriminate unambiguously what mechanism is actually responsible for precession.

Keywords

galaxies: activeaccretionaccretion disks
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S267: Co-Evolution of Central Black Holes and Galaxies , August 2009 , pp. 325
Copyright
Copyright © International Astronomical Union 2010

References

Caproni, A., Livio, M., Abraham, Z., & Mosquera Cuesta, H. J. 2006, ApJ, 653, 112Google Scholar