The impact of model degeneracies on cosmological applications of gravitational lensing

Invited talk at the conference Thinking, Observing and Mining the Universe in Sorrento, Italy, September 2003

ADS bibcode 2004otmu.conf..289W

Thinking, Observing and Mining The Universe
Proceedings of the international conference held in Sorrento, Italy, 2003
editors: Gennaro Miele, Giuseppe Longo

Olaf Wucknitz [1]

  1. Universität Potsdam, Institut für Physik, Am Neuen Palais 10, 14469 Potsdam, Germany

Abstract

This talk discusses the importance of mass model degeneracies in gravitational lensing for cosmological applications, especially the still important determination of H0. The lens effect avoids most systematic uncertainties inherent in other methods and is in principle able to determine cosmological parameters relatively independent of knowledge or prejudice from other astrophysical fields. In order to utilize this advantage, it is necessary to have the possible systematic errors of the lens method itself well under control. The most important model degeneracies as well as possible ways to overcome the difficulties are presented.

You can find the proceedings contribution here


ADS bibcode 2004otmu.conf..289W (link to ADS entry)


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