Discovery of an X-Ray Jet and Extended Jet Structure in the Quasar PKS 1055+201
/ Authors
D. Schwartz, H. Marshall, J. Lovell, D. Murphy, G. Bicknell, M. Birkinshaw, J. Gelbord, M. Georganopoulos, L. Godfrey, D. Jauncey
and 18 more authors
S. Jester, E. Perlman, D. C. F. Astrophysics, Kavli Institute for Astrophysics, Space Research, Mit, Csiro Australia Telescope National Facility, Jet propulsion Laboratory, R. S. O. Astronomy, Astrophysics, Anu, D. Physics, U. Bristol, University of Maryland Baltimore County, NASA's Goddard Space Flight Center, S. O. Physics, Astronomy, U. Southampton
/ 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 hot spot 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 in which we separately detect the X-ray emission from a narrow jet and extended, residual jet plasma over the entire length of a powerful FR II jet.
Journal: The Astrophysical Journal Letters
DOI: 10.1086/507529