Tyson

The Large Synoptic Survey Telescope
Tony Tyson (UC Davis)

The LSST system is designed to yield high image quality as well as superb photometric accuracy. A deep time domain survey of 20,000 square degrees in six bands from 320 to 1050 nm will image each region 1000 times in ten years of operation. The 27.5 r mag limit enables photometry of ten billion galaxies to low surface brightness and shape measurement of several billion galaxies. A number of independent cross-checking probes of the nature of dark energy will result. Using multiple photometric redshift bins, the joint analysis of 2-D BAO and weak lensing is particularly powerful. These and other unique probes of dark energy involving the deep wide-area time domain data will be described. These LSST probes of dark energy are complementary to JDEM.