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Il est Professeur de Physique à l’Institut d’Astrophysique, Université Pierre et Marie Curie, Paris, Professeur au Département de Physique et d’Astronomie de la Johns Hopkins University, Baltimore, et Senior Fellow du Beecroft Institute of Particle Astrophysics and Cosmology, Département de Physique de l’université de Oxford.
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Joseph Silk was born in London, England, studied at the University of Cambridge and Harvard University, and worked for three decades at the University of California, Berkeley. He is Professor of Physics at the Institut d’Astrophysique, Université Pierre et Marie Curie, Paris, Homewood Professor in the Department of Physics and Astronomy, Johns Hopkins University, Baltimore, and Senior Fellow in the Beecroft Institute of Particle Astrophysics and Cosmology, Department of Physics, University of Oxford. From 1999 to September 2011 he was Savilian Professor of Astronomy at the University of Oxford. Joseph Silk has done important early work on inhomogeneities in the cosmic microwave background and how they are influenced by density fluctuations in the matter of the early universe, in particular by a damping effect that bears his name. These were decisive contributions that helped transform cosmology into a high-precision science.
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Joseph Silk wurde in London geboren. Er studierte an der University of Cambridge und der Harvard University, und war über dreissig Jahre an der University of California, Berkeley, tätig. Er ist Professor für Physik am Institut für Astrophysik, Université Pierre et Marie Curie, Paris, Homewood Professor in der Abteilung für Physik und Astronomie, Johns Hopkins University, Baltimore, und Senior Fellow am Beecroft Institute of Particle Astrophysics and Cosmology, Abteilung für Physik, Universität Oxford. Von 1999 bis September 2011 war er Savilian Professor of Astronomy an der Universität Oxford. Joseph Silk hat wichtige frühe Beiträge zum Verständnis von Inhomogenitäten in der kosmischen Mikrowellenhintergrundstrahlung geliefert, basierend auf Dichtefluktuationen uranfänglicher Galaxien. Hervorzuheben sind seine Arbeiten über den stossfreien Dämpfungseffekt, der seinen Namen trägt. Es handelte sich dabei um entscheidende frühe Beiträge zur Entwicklung der Kosmologie hin zu einer höchst präzisen Wissenschaft.
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Joseph Silk, nato a Londra, ha studiato all’Università di Cambridge e alla Harvard University e ha lavorato per tre decenni presso l’Università della California, Berkeley. E’ Professore di Fisica all’Istituto di Astrofisica dell’Università Pierre et Marie Curie, Parigi, Professore al Dipartimento di Fisica e Astronomia della Johns Hopkins University, Baltimora, nonché Senior Fellow del Beecroft Institute of Particle Astrophysics and Cosmology, Dipartimento di Fisica dell’Università di Oxford. Dal 1999 al settembre 2011 è stato Savilian Professor of Astronomy all’Università di Oxford. Joseph Silk ha realizzato uno dei primi importanti lavori sul fondo cosmico a microonde e le sue disomogeneità dovute a fluttuazioni di densità nelle galassie primordiali, ed è noto per gli studi sugli effetti di smorzamento che portano il suo nome. Questi contributi sono risultati decisivi per la trasformazione della cosmologia in una scienza di alta precisione.
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