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J. Rhodes (CalTech), SNAP Collaboration
The SuperNova/Acceleration Probe (SNAP) is a satellite designed to measure the dark energy content of the Universe through the study of type Ia SN. However, SNAP's large field of view, high resolution, and high throughput optical and near infrared imaging capabilities make it an ideal tool to conduct a weak lensing survey. Such a survey will provide unprecedented measurements of the dark matter distribution as well as constraints on the dark energy that are largely orthogonal to those provided by SN. We outline the default SNAP weak lensing program and report on ongoing efforts to optimize the telescope and mission strategy through the use of image simulations. We also report on new techniques to study dark matter and dark energy being developed with SNAP in mind, including the use of the bispectrum to provide tighter constraints on the dark energy and novel ways of using photometric redshifts to study the dark matter distribution through redshift tomography.
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Bulletin of the American Astronomical Society, 35#5
© 2003. The American Astronomical Soceity.