Mathematics – Logic
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.6501h&link_type=abstract
American Astronomical Society Meeting 205, #65.01; Bulletin of the American Astronomical Society, Vol. 36, p.1454
Mathematics
Logic
Scientific paper
Weak gravitational lensing has emerged as one of the most promising cosmological probes to map out the distribution of dark matter in the universe and measure the properties of dark energy. We describe the weak lensing survey planned with the SuperNova/Acceleration Probe (SNAP). Being a survey from space, the SNAP weak lensing program would have a unique capabilty to map out cosmic shear on small angular scales with excellent control of the systematic errors. Several promising methods to measure the cosmological parameters using cosmic shear are presented; these include the two and three point correlation function of shear, and the purely geometric cross-correlation cosmography. The complementary power of these methods would lead to constraints on dark energy comparable to those from type Ia supernovae obtained with SNAP.
Huterer Dragan
SNAP
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