Discovery of an X-ray Jet and Extended Jet Structure in the Quasar PKS 1055+201

Abstract

This letter reports rich X-ray jet structures found in the Chandra observation of PKS 1055+201. In addition to an X-ray jet coincident with the radio jet we detect a region of extended X-ray emission surrounding the jet as far from the core as the radio hotspot to the North, and a similar extended X-ray region along the presumed path of the unseen counterjet to the Southern radio lobe. Both X-ray regions show a similar curvature to the west, relative to the quasar. We interpret this as the first example where we separately detect the X-ray emission from a narrow jet and extended, residual jet plasma over the entire length of a powerful FRII jet.

Accepted for publication in Ap. J. Letters. 4 pages, 3 figures

References in corpus (3)

• Sub-milliarcsecond Imaging of Quasars and Active Galactic Nuclei III. Kinematics of Parsec-Scale Radio Jets
• The Cavity of Cygnus A
• Observations of Magnetic Fields and Relativistic Beaming in Four Quasar Jets

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• A Multi-Wavelength Study of Multiple Spectral Component Jets in AGN: Testing the IC/CMB Model for the Large-Scale-Jet X-ray Emission
• Probing IC/CMB Interpretation for the X-ray knots of AGN through VHE observations
• A survey of X-ray emission from 100 kpc radio jets