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4C 39.24: discovery of a `giant' radio galaxy at z=1.88

Law-Green, J. D. B., Eales, Stephen Anthony, Leahy, J. P., Rawlings, S. and Lacy, M. 1995. 4C 39.24: discovery of a `giant' radio galaxy at z=1.88. Monthly Notices of the Royal Astronomical Society 277 (3) , pp. 995-1005.

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The radio source 4C 39.24 (6C 0905+399) is shown to be the north-preceding lobe of a 111-arcsec FR II `classical double' with an unusual asymmetric structure. The core of the radio galaxy has been identified with a galaxy at z=1.883+/-0.003, giving a projected linear size of 4C 39.24 of D=(689+/-4) h^-1 kpc (assuming H_0=100 h km s ^-1 Mpc^-1 and Omega=0.04), making it the most distant `giant' radio galaxy known. We suggest that the `quad-like' structure seen in the north-preceding radio lobe is caused by the multiple imaging by gravitational lensing of a single hotspot.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Publisher: Oxford University Press
ISSN: 0035-8711
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Last Modified: 04 Jun 2017 05:10

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