The double quasar 0957 + 561 - Examination of the gravitational lens hypothesis using the very large array

Details The double quasar 0957 + 561 - Examination of the gravitational lens hypothesis using the very large array The double quasar 0957 + 561 - Examination of the gravitational lens hypothesis using the very large array

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980sci...208..495g&link_type=abstract

Science, vol. 208, May 2, 1980, p. 495-497. NSF-supported research.

Astronomy and Astrophysics

Astronomy

25

Gravitational Fields, Light Transmission, Quasars, Refracted Waves, Solar Gravitation, Very Large Array (Vla), Astronomical Models, Centimeter Waves, Lenses, Radio Observation

Scientific paper

A full 12-hour synthesis at 6-centimeter wavelength with the Very Large Array confirms the major features previously reported for the double quasar 0957 + 561. In addition, the existence of radio jets apparently associated with both quasars is demonstrated. Gravitational lens models are now favored on the basis of recent optical observations, and the radio jets place severe constraints on such models. Further radio observations of the double quasar are needed to establish the expected relative time delay in variations between the images.

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