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Title: 1830-211 - gravitational lensed images of a flat-spectrum radio core
Authors: Subrahmanyan, Ravi
Narasimha, D.
Rao, A.P.
Swarup, G.
Issue Date: Sep-1990
Publisher: Blackwell Publishing for the Royal Astronomical Society
Citation: Monthly Notices of the Royal Astronomical Society, Vol. 246, p263
Abstract: High-resolution radio observations are presented of the flat-spectrum, 1-arcsec double radio source 1830- 211. Optical CCD imaging in the I-band shows an ~22 - mag object coincident with the radio source position. We find that the unique nature of 1830 - 211 may be understood in terms of gravitational imaging of a background compact flat-spectrum radio source by a foreground galaxy. A lensing model is presented for the compact as well as the extended emission features, and possible tests to confirm the lens hypothesis are outlined.
Description: Restricted Access.
ISSN: 0035-8711
1365-2966 (Online)
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Copyright: 1990 Royal Astronomical Society
Appears in Collections:Research Papers (A&A)

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