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Paper: Kinematic Study of the Blazar 0716+714
Volume: 340, Future Directions in High Resolution Astronomy: The 10th Anniversary of the VLBA
Page: 446
Authors: Bach, U.; Krichbaum, T.P.; Ros, E.; Witzel, A.; Zensus, J.A.; Britzen, S.
Abstract: We determined the kinematics at the jet of 0716+714 from a reanalysis of multi-frequency VLBI data (5, 8.4, 15, 22GHz) obtained during the last 10 years combined with data from the literature. For this intra-day variable blazar, only a lower limit of its distance is known (z ≥ 0.3). We find that 0716+714 is a relatively fast superluminal source (with a Lorentz factor of γ > 15), revising earlier results showing much slower motions. We discuss the new findings with emphasis on the interpretation of the observed rapid radio variability.
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