2004/03/10 by D. A. Schwartz, J. Silverman, J. D. Silverman +13
Physics and Astronomy · #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Astrophysics and Cosmic Phenomena #COSMIC cancer database #Compton scattering #Cosmic microwave background #Galaxies: Formation, Evolution, Phenomena #Galaxy #Jet (fluid) #Optics #Physics #Point source #Quasar #Redshift #Scattering #astro-ph
paper · pdf · doi:10.1086/420843
published as Astrophys.J. 605 (2004) L105-L108 · 12 pages including 4 figures. Accepted for publication by ApJ Letters
arxiv created 2004/03/10 · openalex publication_date 2004/03/29 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The Chandra Multiwavelength Project has discovered a jetlike structure associated with a newly recognized QSO at redshift z = 1.866. The system was 9 4 off-axis during an observation of 3C 207. Although significantly distorted by the mirror point-spread function, we use both a ray trace and a nearby bright point source to show that the X-ray image must arise from some combination of point and extended sources, or else from a minimum of three distinct point sources. We favor the former situation, as three unrelated sources would have a small probability of occurring by chance in such a close alignment. We show that interpretation as a jet emitting X-rays via inverse Compton scattering on the cosmic microwave background is plausible. This would be a surprising and unique discovery of a radio-quiet QSO with an X-ray jet, since we have obtained upper limits of 100 μJy on the QSO emission at 8.46 GHz and limits of 200 μJy for emission from the putative jet.