Results of lambda18 CM VLBI Monitoring of the Radio Jet of Virgo A

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

We present cumulative results of global lambda18 cm VLBI monitoring of the radio jet of Virgo A (3C274, M87) between 1980 and 1992. The most recent VLBI images with 3 mas (0.2 pc) resolution and 3000:1 dynamic range show a wealth of complex structure in the jet, including spatial oscillations and limb-brightening. The brightest jet features show little or no proper motion, which is in sharp contrast to the kpc-scale jet where motions of up to 2.5c are seen. The implications of the observed morphology and proper motions for models of jet collimation and stability are discussed. (See also Junor & Biretta.)

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