Manuel Rabold

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Weak gravitational lensing will be one of the key methods in the future of
cosmology, for the determination of cosmological parameters. Its way of
extracting statistical information from the formation of cosmic
structures, poses a hybrid between the methods applied to the CMB and the
ones applied to the matter density contrast, in the mathematical
description. Since the deflection of light by mass through its gravity,
does not distinguish between baryonic and dark matter, an increased
sensitivity towards the latter one is expected, compared to the
traditional sources of information, on a first point of view. Moreover
through the application of tomographic binning in redshift space, it is
also expected that weak lensing will offer profound insights into the late
time evolution of cosmic structures, therefore allowing for a closer
determination of parameters characterizing dark energy and neutrinos. At
the moment several weak lensing surveys are planned. Among them the Large
Synoptic Survey Telescope and the Euclid space probe. It is therefore
important to a priori evaluate their sensitivities on the cosmological
parameters of interest. A very nice way of doing this is through the
Fisher matrix method.

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Karlsruher Institut für Technologie
Seminarraum Theoretische Physik
Contact: not specified