The Parsec-Scale Jet in M87

Details The Parsec-Scale Jet in M87 The Parsec-Scale Jet in M87

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995pnas...9211364b&link_type=abstract

Proceedings of the National Academy of Sciences of the United States of America, Volume 92, Issue 25, pp. 11364-11367

Physics

18

Scientific paper

We briefly review the observed structure and evolution of the M87 jet on scales lesssim1 parsec (pc; 1 pc = 3.09 x 1016 m). Filamentary features, limb-brightening, and side-to-side oscillation are common characteristics of the pc-scale, and kpc-scale jets. The most prominent emission features on both the pc and subpc scales appear stationary (v/c < 0.1). Nonetheless, based on the jet's flux evolution, the presence of kpc-scale superluminal motion, and the absence of a visible counter-jet, we argue for the presence of an underlying relativistic flow, consistent with unified models. The initial jet collimation appears to occur on scales <0.1 pc, thus favoring electromagnetic processes associated with a black hole and accretion disk.

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