Résumé / Abstract Seminaire_IAP
«  LSST: New Science Frontiers  »

J. Anthony Tyson
Dept. Physics, Univ. California (Davis, California, Etats-Unis d'Amérique)

Expected to be on the sky by 2020, the Large Synoptic Survey Telescope system will produce a 6-band (0.3-1.1 micron) wide-field deep astronomical survey of over 18,000 deg2 of the southern sky to 27th mag using an 8.4-meter ground-based telescope and a 3200 megapixel camera. Each night LSST will obtain multiple images covering a wide swath of sky visible from its location on Cerro Pachón in northern Chile. Every patch of visible sky will be visited more than 800 times during the 10-year survey. The LSST leverages innovative technology in all subsystems. Thirty terabytes of data will be produced nightly, and alerts issued worldwide within 60 sec for objects that change in position or brightness. Over 100 collaborating institutions worldwide will have immediate access to all data products.

The history of astronomy has taught us repeatedly that there are surprises whenever we view the sky in a new way. With an unprecedented combination of sky coverage, cadence, and depth, the LSST makes it possible to attack high-priority scientific questions that are far beyond the reach of any existing or planned facility. Some of LSST's science will rely on the statistical precision obtainable with billions of objects. For the first time, the sky will be surveyed deep and fast, opening a new window on a universe of faint moving and distant exploding objects, as well as exploring the physics of dark energy with eight types of probes.
vendredi 19 octobre 2012 - 11:00
Amphithéâtre Henri Mineur, Institut d'Astrophysique de Paris
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