HST Observations of the Optical Jets of PKS 0521-365, 3C371, and PKS 2201+044

Details HST Observations of the Optical Jets of PKS 0521-365, 3C371, and PKS 2201+044 HST Observations of the Optical Jets of PKS 0521-365, 3C371, and PKS 2201+044

1999-06-28

arxiv.org/abs/astro-ph/9906462v1

Astronomy and Astrophysics

Astrophysics

Accepted for publications on the Astrphysical Journal. Contains 14 pages and 5 figures

Scientific paper

10.1086/308041

HST observations have led to the discovery of the optical counterpart of the radio jet of PKS 2201+044, and to a detailed analysis of the optical jets of PKS 0521-365 and 3C371. At HST spatial resolution these jets are well resolved, displaying knotty morphologies. When compared with radio maps of appropriate resolution, a clear one-to-one correspondence between optical and radio structures is found, showing that all detected optical structures are indeed related to the radio synchrotron emission. Photometry of the brightest knots shows that the radio-to-optical spectral index and the derived intensity of the equipartition magnetic field are approximately constant along the jet. Thus, present observations suggest that the electron energy distribution does not change significantly all along the jet.

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