UBVR Photometry of 2345+007A, B and the Gravitational Lens Hypothesis

Details UBVR Photometry of 2345+007A, B and the Gravitational Lens Hypothesis UBVR Photometry of 2345+007A, B and the Gravitational Lens Hypothesis

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983liaco..24..192s&link_type=abstract

Quasars and Gravitational Lenses, Proceedings of the 24th Liège International Astrophysical Colloquium, held 21-24 June 1983 in

Astronomy and Astrophysics

Astrophysics

4

Scientific paper

U.B.V.r. measurements of 2345+007 A,B are found compatible with the gravitational lens hypothesis. If so, the main deflecting galaxy could not be brighter than V ≈ 22.2, r ≈ 21.5. Such a galaxy could belong to a group at z > 0.5 which would help to the lensing and increase the separation of the 2 detected images. Few faint galaxies are detected in a 20 arc sec square area around 2345+007.

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