Abstract
Observations of GL systems can provide a wealth of astrophysical information. As F. Zwicky noted as early as one-half century ago [ZW37.1], GLs (1.) furnish an additional test of General Relativity; (2.) allow us to see fainter or more distant sources; and (3.) provide a means to estimate the mass of galaxies, of clusters of galaxies, and of unseen, massive aggregates of dark matter.
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© 1992 Springer Science+Business Media New York
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Schneider, P., Ehlers, J., Falco, E.E. (1992). Gravitational lenses as astrophysical tools. In: Gravitational Lenses. Astronomy and Astrophysics Library. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-03758-4_13
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DOI: https://doi.org/10.1007/978-3-662-03758-4_13
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-66506-9
Online ISBN: 978-3-662-03758-4
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