The Deep Lens Survey is an ultra-deep multi-band optical survey of five 4 square degree fields. Mosaic CCD imagers at NOAO's Blanco and Mayall telescopes are being used. The deep combined data and catalogs for sub-fields will be released to the community as they are completed and quality verified. In addition, optical transient events (including moving objects) and supernova candidates are released in REAL TIME.
A very faint blue optical burst detected by difference imaging (the right panel shows the difference of the left and middle panels) in the Deep Lens Survey (adapted from Becker et al. 2004). Recently Kulkarni and Rau (2006) showed that this blue burst originated on a red dwarf star in our Galaxy.
Color-redshifts of galaxies will allow tomographic reconstruction of large-scale mass maps as a function of cosmic look-back time, via weak gravitational lensing. The calibrated data and catalogs will be archived on this and other websites. These deep probes of the universe will form a valuable resource for follow-up studies.
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The Deep Lens Survey has received major funding from Lucent Technologies and from the National Science Foundation (grant 0441072).