Radio studies of the double QSO, 0957 + 561A, B

Details Radio studies of the double QSO, 0957 + 561A, B Radio studies of the double QSO, 0957 + 561A, B

Aug 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979natur.280..461p&link_type=abstract

Nature, vol. 280, Aug. 9, 1979, p. 461-464.

Astronomy and Astrophysics

Astronomy

29

Gravitational Lenses, Radio Astronomy, Radio Sources (Astronomy), Astronomical Maps, Microwave Spectra, Optical Properties, Radiant Flux Density, Stellar Structure, Tables (Data)

Scientific paper

The total flux density, positions and angular sizes of a pair of QSOs, 0957 + 561A, B are examined. A 5 GHz map of the two radio sources was obtained with the aid of a 5 km telescope for three 12 hour periods in May 1979, mapping Stokes parameters twice. The structure, flux ratio, radio spectral differences and extensions of the two components are studied and emphasis is placed on the gravitational lens theory. The most important feature noted is that there are radio components that coincide with the optical QSOs and with comparable flux densities at 5 GHz where the structure is determined; this was also found to be consistent with the gravitational lens theory.

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