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D. Schwartz (SAO), H. L. Marshall, J. Gelbord (MIT), E. Perlman, M. Georganopoulos (UMBC), M. Birkinshaw, D. M. Worrall (U. Bristol), J.E.L. Lovell, D. L. Jauncey (ATNF), L. Godfrey, G. Bicknell (MSSSO), D. Murphy (JPL), S. Jester (FNAL)
We report on the Chandra observations of the large scale jet in 4C 20.24 (= PKS B1055+201). This is one of the longest X-ray jets seen in a quasar, extending 23 arcsec from the quasar core. This corresponds to 190 kpc in the plane of the sky, for the redshift z=1.11 of the quasar. The jet luminosity in X-rays is about 2.5 x 1044 erg s-1, about 2 percent of the core X-ray luminosity. The arcsec scale X-ray and 1.46 GHz jets initially follow the direction of the VLBA jet emanating N from the 0.2 mas core, but then curve to the NNW through a total change in angle of about 45 degrees. This system is unique in that we clearly observe a broader region of X-ray emission enclosing both the jet to the North, and an unseen counter jet to the South!
Work at MIT was supported under SAO grant GO4-5124 and SAO contract SV3-73016 for the Chandra X-ray Center, operated by SAO under NASA contract NAS8-03060. Work at SAO was supported by NASA contract NAS8-39073 to the Chandra X-ray Center, and CXC grant GO5-6116B.
The author(s) of this abstract have provided an email address for comments about the abstract: das@cfa.harvard.edu
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Bulletin of the American Astronomical Society, 37 #2
© 2005. The American Astronomical Soceity.