A Chandra Survey of Quasar Jets: First Results

H. L. Marshall, D. A. Schwartz, J. E. J. Lovell, D. W. Murphy, D. M. Worrall, M. Birkinshaw, J. M. Gelbord, E. S. Perlman, D. L. Jauncey

Research output: Contribution to journalArticle (Academic Journal)peer-review

116 Citations (Scopus)


We present results from Chandra X-ray imaging and spectroscopy of a flux-limited sample of flat-spectrum radio-emitting quasars with jetlike extended structure. Twelve of 20 quasar jets are detected in 5 ks ACIS-S exposures. The quasars without X-ray jets are not significantly different from those in the sample with detected jets except that the extended radio emission is generally fainter. New radio maps are combined with the X-ray images in order to elucidate the relation between radio and X-ray emission in spatially resolved structures. We find a variety of morphologies, including long straight jets and bends up to 90°. All X-ray jets are one-sided although the radio images used for source selection often show lobes opposite the X-ray jets. The FR II X-ray jets can all be interpreted as inverse Compton scattering of cosmic microwave background photons by electrons in large-scale relativistic jets although deeper observations are required to test this interpretation in detail. Applying this interpretation to the jets as a population, we find that the jets would be aligned to within 30° of the line of sight generally, assuming that the bulk Lorentz factor of the jets is 10.
Original languageEnglish
Pages (from-to)13-33
Number of pages20
JournalAstrophysical Journal Supplement Series
Issue number1
Publication statusPublished - 1 Jan 2005


  • Galaxies: Active
  • Galaxies: Quasars: General


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