J. M. Blanchard, J. E. J. Lovell, J. Dickey, R. Ojha, M. Kadler, R. Nesci, P. G. Edwards, J. Stevens, M. Dutka, C. Muller, T. Pursimo
The gamma-ray blazar PKS 0208-512 has shown strong periods of flaring, at all
frequencies from radio to gamma-ray. This has led to its inclusion in the
TANAMI project, which tracks the jets of southern AGN using VLBI as well as
supporting flux density monitoring programs. Time series analysis of the light
curves generated by such monitoring is presented and discussed and VLBI maps of
the source are used to show the evolution in the jet. A frequency dependent lag
is observed between flaring at different radio frequencies which does not
appear to correspond to purely optical depth effects. Major flaring at
gamma-ray frequencies appears to be preceded by a new component in the jet seen
in our VLBI data.
View original:
http://arxiv.org/abs/1202.4499
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