Abstract
In this short communication we report on the discovery of a new class of astronomical objects whose nature was first established with spectroscopic observations at the European Observatory: the luminous Einstein arcs (or rings) in rich clusters of galaxies. We also present more recent observations with the Canada France Hawaï telescope which prove that the cluster A370 acts on the background galaxies as a giant gravitational telescope. This observational advance will probably open a new stage in the study of gravitational lenses and their implications in cosmology.
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© 1989 Kluwer Academic Publisher
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Fort, B.P. (1989). Probing the Universe with Rich Clusters of Galaxies as Giant Gravitational Telescopes. In: Caffo, M., Fanti, R., Giacomelli, G., Renzini, A. (eds) Astronomy, Cosmology and Fundamental Physics. Astrophysics and Space Science Library, vol 155. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0965-6_16
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DOI: https://doi.org/10.1007/978-94-009-0965-6_16
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