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CASTOR: the Cosmological Advanced Survey Telescope for Optical and Ultraviolet Research

2012; SPIE; Volume: 8442; Linguagem: Inglês

10.1117/12.926198

1996-756X

Patrick Côté, Alan Scott, Michael L. Balogh, Ron Buckingham, David Aldridge, R. G. Carlberg, Weiguo Chen, J. Dupuis, Clinton Evans, Laurent Drissen, Wes Fraser, Frédéric Grandmont, Paul Harrison, J. B. Hutchings, J. J. Kavelaars, John-Thomas Landry, Christian Lange, Denis Laurin, Tarun Patel, Venka Pillay, Louis Piche, Andres Rader, Carmelle Robert, Marcin Sawicki, Robert Sorba, Guillaume Thériault, Ludovic Van Waerbeke,

Stellar, planetary, and galactic studies

The Cosmological Advanced Survey Telescope for Optical and UV Research (CASTOR) is a proposed CSA mission that would make a unique, powerful, and lasting contribution to astrophysics by providing panoramic, high-resolution imaging in the UV/optical (0.15 - 0.55 μm) spectral region. This versatile `smallSAT'-class mission would far surpass any ground-based optical telescope in terms of angular resolution, and would provide ultra-deep imaging in three broad lters to supplement longer-wavelength data from planned international dark energy missions (Euclid, WFIRST) as well as from the ground-based Large Synoptic Survey Telescope (LSST). Combining the largest focal plane ever own in space, with an innovative optical design that delivers HST-quality images over a eld two orders of magnitude larger than Hubble Space Telescope (HST), CASTOR would image about 1/8th of the sky to a (u-band) depth ~1 magnitude fainter than will be possible with LSST even after a decade of operations. No planned or proposed astronomical facility would exceed CASTOR in its potential for discovery at these wavelengths.