The Kiloparsec Scale Jet of the Quasar 1317+520

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

We present images of the quasar 1317+520 (z=1.06) obtained with the Infrared Array Camera (IRAC) of the Spitzer Space Telescope at 4.5/8 mum along with X-ray and radio images collected with Chandra and the Very Long Array. The IR emission is detected at a distance of 10'' from the core and coincides with the brightest X-ray and radio feature in the extended jet. The spectral energy distribution of the feature fits very well with a synchrotron emission model from X-rays to radio wavelengths. This model allows estimation of the jet parameters at a distance of about 200 kpc from the core (deprojected). The polarized intensity image at 5 GHz provides clues concerning how the reacceleration of relativistic electrons might occur.
This research was funded in part by the National Science Foundation through grant AST-0406865 and by Jet Propulsion Laboratory through research support agreement no. 1276241.

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