The Quasar 1317+520: A Laboratory for Particle Acceleration
نویسنده
چکیده
Multiwaveband images of extended jets in quasars reveal that in some locations electrons reach energies of at least 100 TeV, while in others the particle acceleration is less efficient. The jet of the quasar 1317+520 (z=1.06) contains shocks that are both transverse and oblique to the jet axis as well as regions where the axial magnetic field and polarization indicate cross-jet velocity shear. Strong X-ray emission turns on at the oblique shock, which is probably caused by the impact of an intergalactic cloud with the jet.
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