A Chandra Survey of Quasar Jets: First Results

Details A Chandra Survey of Quasar Jets: First Results A Chandra Survey of Quasar Jets: First Results

2004-09-23

arxiv.org/abs/astro-ph/0409566v1

Astronomy and Astrophysics

Astrophysics

25 pages with 5 pages of color figures; accepted for publication in the Astrophysical Journal Supplements; higher resolution j

Scientific paper

10.1086/425578

We present results from Chandra X-ray imaging and spectroscopy of a flux-limited sample of flat spectrum radio-emitting quasars with jet-like extended structure. Twelve of twenty 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 degrees. 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 degrees of the line of sight generally, assuming that the bulk Lorentz factor of the jets is 10.

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