International Ultraviolet Explorer (IUE) observations of the twin QSO'S 0957 + 561 A, B

Details International Ultraviolet Explorer (IUE) observations of the twin QSO'S 0957 + 561 A, B International Ultraviolet Explorer (IUE) observations of the twin QSO'S 0957 + 561 A, B

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980esasp.157..295g&link_type=abstract

The second European International Ultraviolet Explorer (IUE) Conference, held 26-28 March 1980 in Tübingen, West Germany. Edited

Astronomy and Astrophysics

Astronomy

1

Gravitational Lenses, Iue, Quasars, Ultraviolet Astronomy, Continuous Spectra, Elliptical Galaxies, Emission Spectra, Flux Density, Interstellar Extinction, Lyman Alpha Radiation

Scientific paper

The ultraviolet spectra of the twin quasars 0957 + 561 A,B were obtained with International Ultraviolet Explorer. These quasars are suspected to be the images of a single object formed by an intervening galaxy acting as a gravitational lens. The ultraviolet data give an intensity ratio for the two objects which is the same, within the errors, as that derived at radio frequencies. This shows that differential reddening between the two light paths is negligible and also given support to the gravitational lens hypothesis.

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