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Discovery of a Jetlike Structure at the High-Redshift QSO CXOMP J084128.3+131107
Author(s) -
D. A. Schwartz,
J. D. Silverman,
M. Birkinshaw,
Margarita Karovska,
Thomas L. Aldcroft,
W. A. Barkhouse,
Paul Green,
Dong Wook Kim,
B. J. Wilkes,
D. M. Worrall
Publication year - 2004
Publication title -
the astrophysical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.376
H-Index - 489
eISSN - 1538-4357
pISSN - 0004-637X
DOI - 10.1086/420843
Subject(s) - astrophysics , physics , redshift , cosmic microwave background , point source , quasar , jet (fluid) , cosmic cancer database , compton scattering , astronomy , galaxy , scattering , optics , anisotropy , thermodynamics
The Chandra Multiwavelength Project (ChaMP) has discovered a jet-likestructure associated with a newly recognized QSO at redshift z=1.866. Thesystem was 9.4 arcmin off-axis during an observation of 3C 207. Althoughsignificantly distorted by the mirror PSF, we use both a raytrace and a nearbybright point source to show that the X-ray image must arise from somecombination of point and extended sources, or else from a minimum of threedistinct point sources. We favor the former situation, as three unrelatedsources would have a small probability of occurring by chance in such a closealignment. We show that interpretation as a jet emitting X-rays via inverseCompton (IC) scattering on the cosmic microwave background (CMB) is plausible.This would be a surprising and unique discovery of a radio-quiet QSO with anX-ray jet, since we have obtained upper limits of 100 microJy on the QSOemission at 8.46 GHz, and limits of 200 microJy for emission from the putativejet.Comment: 12 pages including 4 figures. Accepted for publication by ApJ Letter

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