| Galaxy-CMB and galaxy-galaxy lensing on large scales: sensitivity to primordial non-Gaussianity (2009) | |||||||||
Abstract | |||||||||
| A convincing detection of primordial non-Gaussianity in the local form of the bispectrum, whose amplitude is given by the fNL parameter, offers a powerful test of inflation. In this paper we calculate the modification of two-point cross-correlation statistics of weak lensing - galaxy-galaxy lensing and galaxy-Cosmic Microwave Background (CMB) cross-correlation - due to fNL. We derive and calculate the covariance matrix of galaxy-galaxy lensing including cosmic variance terms. We focus on large scales (l. Comment: 21 pages, 30 figures | |||||||||
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