The blazar 0059+581: Successful prognosis of activity

Our earlier joint analysis of light curves for the blazar 0059+581 at 4.8, 8, 14.5, 22, and 37 GHz with high-resolution VLBI images led us to suggest that the activity in this source develops in cycles, or periods, with a duration of about four years, with a 'typical scenario' for the deve...

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Bibliographic Details
Published in:Astronomy reports 2006-06, Vol.50 (6), p.468-482
Main Authors: Pyatunina, T B, Gabuzda, D C, Jorstad, S G, Kudryavtseva, N A, Aller, M F, Aller, H D, Terasranta, H
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics
Quasars
Radio astronomy
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Summary:Our earlier joint analysis of light curves for the blazar 0059+581 at 4.8, 8, 14.5, 22, and 37 GHz with high-resolution VLBI images led us to suggest that the activity in this source develops in cycles, or periods, with a duration of about four years, with a 'typical scenario' for the development of the source's activity taking place over a cycle. Based on this analysis, we predicted in 2002 that a new superluminal component would be ejected from the core of this source in a structural position angle ~170DG no later than by the end of 2003. A 43-GHz VLBI image obtained on September 14, 2003, as part of a program to monitor the structure of reference sources used for a radio astronomical coordinate system, convincingly confirms the correctness of this prediction. This is the first time in the history of radio astronomy that a new superluminal component has been detected at a predicted time and in a predicted structural position angle.
ISSN:1063-7729
1562-6881
DOI:10.1134/S1063772906060060