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This is the preliminary program for the 2009 Joint Statistical Meetings in Washington, DC.

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Activity Number: 199
Type: Invited
Date/Time: Monday, August 3, 2009 : 2:00 PM to 3:50 PM
Sponsor: IMS
Abstract - #302970
Title: Detection of Weak Lensing: A Statistical Challenge to Unveil the Dark Side of the Universe
Author(s): Laura Cayon*+
Companies: Purdue University
Address: Department of Physics, West Lafayette, IN, 47907,
Keywords: astrophysics ; cosmology ; statistical methods ; gravitational lensing

Uncovering the distribution of Dark Matter in the universe is one of the fundamental tasks of ongoing and future generation sky surveys. In particular the Large Synoptic Survey Telescope (LSST) will provide images of unprecedented quality covering a large area of the sky (20,000 square degrees of the southern sky.) Positions, shapes, orientations and distances of billions of galaxies will be obtained over the ten years of operations. The presence of dark matter will distort the shape and orientation of background galaxies through the gravitational lensing effect. We will discuss novel statistical methods that will aid in the process of detecting and mapping the dark matter of the universe. We will assess the power of these methods based on their performance on LSST simulations that include most of the instrumental and observational constraints.

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Revised September, 2008