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Synchrotron Jet Model for the 1989-1996 Cycle of Activity of NGC 4151

Published online by Cambridge University Press:  26 May 2016

I. I. Pronik
I. I. Pronik*
Affiliation:
Crimean Astrophysical Observatory, p. Nauchny, 98409 Crimea, Ukraine

Abstract

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Observational data from the X-ray through the UV and optical of variations of the NGC 4151 nucleus were compiled. The characteristics of the variability related to the 1989-1996 cycle of activity show remarkable similarity to those of blazars and do not contradict the supposition that this cycle of activity was caused by a synchrotron jet (SJ). Some of the activity of previous cycles were interpreted in the framework of a SJ model and some of that of a disc instability model (DI). We ask the question if different cycles of activity can be of a different nature caused by a different accretion rate.

Type
Part 3. Ejection and Outflow
Information
Symposium - International Astronomical Union , Volume 217: Recycling Intergalactic and Interslettar Matter , 2004 , pp. 358 - 359
Copyright
Copyright © Astronomical Society of the Pacific 2004