Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993natur.365..133t&link_type=abstract
Nature (ISSN 0028-0836), vol. 365, no. 6442, p. 133-135.
Astronomy and Astrophysics
Astronomy
48
Extragalactic Radio Sources, Hubble Space Telescope, Quasars, Radio Jets (Astronomy), Synchrotron Radiation, Energetic Particles, Faint Object Camera, Magnetohydrodynamic Flow
Scientific paper
High-resolution intensity and polarization maps of the optical jet of 3C273 obtained using the Faint Object Camera on the HST are presented. The optical emission is tightly confined to the core of the radio jet and is resolved into a number of highly polarized knot structures. Both the optical and the radio emission can be explained by synchrotron radiation from a stream of energetic particles burrowing into the surrounding medium. Comparison with the radio maps also reveals asymmetry in the emission across the jet, indicating significant lateral motion of the jet relative to the ambient medium. The onset of optical emission from the jet some distance from the nucleus of 3C273 could arise from the interaction of the jet with a shell of gaseous material surrounding the host galaxy.
Mackay Craig D.
Thomson Robert C.
Wright Alan E.
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