The blazar 0059+581: Successful prognosis of activity

Details The blazar 0059+581: Successful prognosis of activity The blazar 0059+581: Successful prognosis of activity

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006arep...50..468p&link_type=abstract

Astronomy Reports, vol. 50, Issue 6, p.468-482

Astronomy and Astrophysics

Astronomy

1

Pacs Numbers 98.54.C

Scientific paper

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 ˜170° 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.

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