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PMN J0134-0931: A gravitationally lensed quasar with unusual radio morphology
journal contributionposted on 2023-05-16, 19:30 authored by Winn, JN, James LovellJames Lovell, Chen, HW, Fletcher, AB, Hewitt, JN, Patnaik, AR, Schechter, PL
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 0â€³.7. 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.
Publication titleThe Astrophysical Journal
Department/SchoolSchool of Natural Sciences
PublisherUniversity of Chicago Press
Place of publicationChicago, USA