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A Chandra Survey of Quasar Jets: First Results


Marshall, HL and Schwartz, DA and Lovell, JEJ and Murphy, DW and Worrall, DM and Birkinshaw, M and Gelbord, JM and Perlman, ES and Jauncey, DL, A Chandra Survey of Quasar Jets: First Results, Astrophysical Journal Supplement Series, 156, (1) pp. 13-33. ISSN 0067-0049 (2005) [Refereed Article]

DOI: doi: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 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 FRII 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.

Item Details

Item Type:Refereed Article
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:Galactic astronomy
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Lovell, JEJ (Dr Jim Lovell)
ID Code:45347
Year Published:2005
Web of Science® Times Cited:124
Deposited By:Physics
Deposited On:2007-07-11
Last Modified:2011-11-29

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