New VLA Observations of the Gravitationally Lensed Quasar 0957+561

Details New VLA Observations of the Gravitationally Lensed Quasar 0957+561 New VLA Observations of the Gravitationally Lensed Quasar 0957+561

May 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...188.1303h&link_type=abstract

American Astronomical Society, 188th AAS Meeting, #13.03; Bulletin of the American Astronomical Society, Vol. 28, p.843

Astronomy and Astrophysics

Astronomy

Scientific paper

We present 20, 6, 3.6 and 2cm high dynamic range radio maps of the gravitationally lensed quasar 0957+561 obtained with the VLA in A configuration. The 20cm map shows extended structure not seen previously which may be the lensed second images of the extended structures associated with image A. Radio positions of the quasar cores and the lensing galaxy are compared to optical positions from HST and CFHT data. We discuss possible explanations for the extended 20cm radio emission and the implications concerning the gravitational lens models.

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