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Paper: Superluminal Motion in the Gamma-Ray Blazar 3C 279
Volume: 144, Radio Emission from Galactic and Extragalactic Compact Sources, IAU Colloquium 164
Page: 69
Authors: Unwin, S. C.; Wehrle, A. E.; Xu, W.; Zook, A. C.; Marscher, A. P.
Abstract: The blazar 3C 279 is one of the strongest extragalactic sources of gamma-rays, and is also one of the best studied superluminal radio sources. Definitive testing of models of the broad-band spectral energy distribution, especially in the X-ray and gamma-ray regions requires knowledge of the evolution of the spectrum with time. Within the context of the relativistic jet model, multi-wavelength monitoring of the parsec-scale radio jet is also required. We present here the first steps toward such a test, using extensive VLBI monitoring over a 13 year interval at 22 GHz, and gamma-ray observations between 1991 and 1996.
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