HST Observations of Superluminal Motion in the M87 Jet

Details HST Observations of Superluminal Motion in the M87 Jet HST Observations of Superluminal Motion in the M87 Jet

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aas...19110410b&link_type=abstract

American Astronomical Society, 191st AAS Meeting, #104.10; Bulletin of the American Astronomical Society, Vol. 29, p.1376

Astronomy and Astrophysics

Astronomy

Scientific paper

We present results of Hubble Space Telescope FOC and WFPC2 monitoring of the M87 jet at four epochs between 1994 and 1997. Remarkable changes in the jet are seen, even over this short time. Numerous features are seen to move outward with superluminal speeds in the range 4c to 6c, implying an underlying flow with Lorentz factor ~ 5 or greater. Small condensations form within the jet and vanish on timescales ~ 1 year. Implications for jet structure and kinematics, as well as for unified schemes, are discussed.

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