期刊
ASTROPHYSICAL JOURNAL
卷 564, 期 1, 页码 143-152出版社
IOP PUBLISHING LTD
DOI: 10.1086/324144
关键词
gravitational lensing; quasars : individual (PMN J0134-0931); radio continuum : galaxies
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 All of these components have the same spectral index from 5 to 43 GHz. 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.
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