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Concluding remarks

Blandford, R. D. (1990) Concluding remarks. In: Gravitational Lensing. Lecture Notes in Physics. No.360. Springer , Berlin, pp. 299-308.

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We have gathered in the home of Pierre Fermat, originator of the principle that is so helpful in understanding gravitational lenses, (and also, according to local tradition, the inventor of the calculus) at a particularly opportune moment in the development of this subject. There have been many exciting observational developments over the past year. Several more multiple-imaged quasars have been found in systematic surveys. Microlensing, exhaustively simulated by theorists and used as a panacea for any statistical discomfort we might have felt, may actually have been detected in a location where it is hard to avoid. Two radio rings have been announced and more are confidently expected. The natural arcs, co-discovered by our gracious hosts, (and a far more appropriate celebration of French culture than the artificial ones recently proposed to commemorate the construction of the Eiffel Tower) are now known to be a common property of high redshift clusters. 1989 is also an anniversary as it is 70 years since the first relevant observational (Dyson, Eddington and Davidson 1920) and theoretical (Lodge 1919) papers on this subject and ten years since the discovery of the first bona fide gravitational lens (Walsh, Carswell and Weymann 1979).

Item Type:Book Section
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Blandford, R. D.0000-0002-1854-5506
Additional Information:© 1990 Springer-Verlag. I am sure I speak for many when I pay tribute to our gracious hosts, especially Bernard Fort who initiated the planning of the meeting, Genvieve Soucail who carried the burden of the local organisation and Yannick Mellier who will be responsible for editing the proceedings. That this workshop seems to have finished far too soon is a measure of their success. Personally I acknowledge invaluable discussion with participants too numerous to mention, helpful comments and the first draft of this discussion by Bernard Fort, Chris Kochanek, Israel Kovner, Peter Schneider and Jean Surdej and support under NSF grant AST86-15325.
Funding AgencyGrant Number
NSFAST 86-15325
Subject Keywords:Dark Matter; Gravitational Lens; Image Splitting; Einstein Ring; Cluster Mass Distribution
Series Name:Lecture Notes in Physics
Issue or Number:360
Record Number:CaltechAUTHORS:20190605-111855359
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96148
Deposited By: Tony Diaz
Deposited On:06 Jun 2019 03:44
Last Modified:16 Nov 2021 17:18

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