Image coherence of gravitational lenses

Talk given at the ANGLES workshop 2006 at the Dark Cosmology Centre in Copenhagen, Denmark, 14 November 2006

O. Wucknitz [1]

  1. JIVE, Dwingeloo, NL

Abstract

I discuss the possibility of correlating radio data from images of gravitational lenses by correcting for the time delay. I find that source-size effects together with the limited bandwidth make the detection of fringes very unlikely. Happily neglecting these problems, it is briefly explained what we could learn from such time-delay corrected cross-correlations. This would be no less than complete information about the lensing potential, without serious degeneracies.



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Script last modified on 7 Sep 2010
Last change to this data base entry on 20 Nov 2006