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PMN J0134-0931: A gravitationally lensed quasar with unusual radio morphology


Winn, JN and Lovell, JEJ and Chen, HW and Fletcher, AB and Hewitt, JN and Patnaik, AR and Schechter, PL, PMN J0134-0931: A gravitationally lensed quasar with unusual radio morphology, The Astrophysical Journal, 564, (1) pp. 143-152. ISSN 0004-637X (2002) [Refereed Article]

DOI: doi:10.1086/324144


The radio-loud quasar J0134-0931 was discovered to have an unusual morphology during our search for gravitational lenses. In Very Large Array and MERLIN images, there are five compact components with a maximum separation of 0″.7. All of these components have the same spectral index from 5 to 43 GHz. In a Very Long Baseline Array image at 1.7 GHz, a curved arc of extended emission joins two of the components in a manner suggestive of gravitational lensing. At least two of the radio components have near-infrared counterparts. We argue that this evidence implies that J0134-0931 is a gravitational lens, although we have not been able to devise a plausible model for the foreground gravitational potential. Like several other radio-loud lenses, the background source has an extraordinarily red optical counterpart.

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:45345
Year Published:2002
Web of Science® Times Cited:41
Deposited By:Physics
Deposited On:2007-07-11
Last Modified:2011-08-02

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