Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21346003i&link_type=abstract
American Astronomical Society, AAS Meeting #213, #460.03; Bulletin of the American Astronomical Society, Vol. 41, p.366
Astronomy and Astrophysics
Astronomy
5
Scientific paper
The LSST will be a large, wide-field ground based telescope designed to obtain sequential images covering the entire visible sky from Cerro Pachon in Northern Chile. The current baseline design, with an 8.4m (6.7m effective) primary mirror and a 9.6 sq.deg. field of view, will allow about 10,000 square degrees of sky to be covered in two photometric bands every three nights (assuming two 15-second exposures per field visit). The system is designed to yield high image quality as well as superb astrometric and photometric accuracy. The survey area will include at least 25,000 sq.deg. with Dec < +34.5, and will be imaged multiple times in six bands covering the wavelength range 320--1050 nm. The vast majority (about 90%) of the observing time will be devoted to a deep-wide-fast survey mode which will observe a 20,000 sq.deg. region south of Dec +10 deg in the ugrizy bands about 1000 times (including all bands) during the 10-year survey. The deep-wide-fast survey data will serve the majority of science programs. The remaining 10% of observing time will be allocated to special programs such as Very Deep and Very Fast time domain surveys. We illustrate how LSST science drivers led to these choices of system design parameters.
Axelrod Tim
Burke Daniel
Claver Charles Frederick
Cook Kem H.
Ivezic Zeljko
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