First Results from a Multi-wavelength Survey of Quasar Jets

Details First Results from a Multi-wavelength Survey of Quasar Jets First Results from a Multi-wavelength Survey of Quasar Jets

2004-05-14

arxiv.org/abs/astro-ph/0405292v1

Astronomy and Astrophysics

Astrophysics

2 pages, 4 figures, to appear in "Multiwavelength AGN Surveys" (Cozumel, December 8-12 2003), ed. R. Maiolino and R. Mujica, S

Scientific paper

We present results based on the first 20 Chandra images obtained in a survey of jets in radio selected flat-spectrum quasars (FSRQs), along with new sub-arcsecond radio maps and optical images. We discover jet X-ray flux in 12 sources despite short exposures, establishing that FSRQ jets are often X-ray bright. The X-ray morphology typically matches the radio and fades rapidly after the first sharp radio bend, but there are notable exceptions. Optical non-detections rule out simple synchrotron models for jet X-ray emission, implying these systems are dominated by inverse Compton (IC) scattering. Models of IC scattering of the cosmic microwave background (CMB) constrain the bulk flow and magnetic field, suggesting the jets are oriented close to our line of sight, with deprojected lengths often \gg 100 kpc.

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