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Cosmological Constraints from Cosmic Shear and CMB

Published online by Cambridge University Press:  15 June 2005

I. Tereno
I. Tereno
Affiliation:
Institut d'Astrophysique de Paris, 98 bis, boulevard Arago, F-75014 Paris, France Departamento de Física, Universidade de Lisboa, 1749-016 Lisboa, Portugal
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Abstract

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We analyse the sensitivity of cosmic shear 2-point statistics to the cosmological parameters, by using Monte Carlo Markov Chain (MCMC) methods. In particular, we investigate degeneracies among parameters and compare them to the CMB ones. Specializing on a Canada France Hawaii Telescope Legacy Survey (CFHTLS) type lensing survey and WMAP-1 year and CBI CMB data, we find cosmic shear information improves CMB cosmological parameters constraints by a factor of 1.5 – 2.5.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS225 , July 2004 , pp. 75 - 80
Copyright
© 2004 International Astronomical Union