AAS 201st Meeting, January, 2003
Session 97. Probing Dark Energy with SNAP
Oral, Wednesday, January 8, 2003, 10:00-11:30am, 602-604

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[97.08] Weak Lensing With SNAP

J.D. Rhodes (NRC/GSFC), SNAP Collaboration

The SuperNova/Acceleration Probe will be an ideal instrument to probe cosmological parameters via weak lensing. Two surveys, a wide 300 square degree survey to AB=28 and a deep 15 square degree survey to AB=30.3 will be conducted in 6 optical and 3 near infrared filters. These surveys will provide a direct measure of the dark matter distribution on scales from arcseconds to degrees and will allow detailed maps to be made of the dark matter distribution at different epochs through the use of photometric redshifts. Constraints on the cosmological parameter \OmegaM and the cosmic equation of state w can be inferred from the power spectrum of the dark matter distribution. These constraints will help break degeneracies in the \OmegaM-w plane from SN measurements.

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