Ivezić, Željko, Kahn, Steven M., Tyson, J. (LBNL), Berkeley, CA (United States) Sponsoring Org.: USDOE Office of Science (SC), High Energy Physics (HEP) USDOE National Nuclear Security Administration (NNSA) Contributing Org.: LSST Science Collaboration OSTI Identifier: 1595419 Alternate Identifier(s): OSTI ID: 1504385 OSTI ID: 1505423 OSTI ID: 1572251 OSTI ID: 1581095 OSTI ID: 1755511 Report Number(s): BNL-211477-2019-JAAM LLNL-JRNL-795297 Journal ID: ISSN 1538-4357 TRN: US2101706 Grant/Contract Number: SC0009999 SC0010118 SC0012704 1258333 AC02-76SF00515 AC52-07NA27344 AC02-05CH11231 Resource Type: Accepted Manuscript Journal Name: The Astrophysical Journal (Online) Additional Journal Information: Journal Name: The Astrophysical Journal (Online) Journal Volume: 873 Journal Issue: 2 Journal ID: ISSN 1538-4357 Publisher: Institute of Physics (IOP) Country of Publication: United States Language: English Subject: 79 ASTRONOMY AND ASTROPHYSICS astrometry cosmology observations galaxy stars surveys (LLNL), Livermore, CA (United States) Lawrence Berkeley National Lab.
(BNL), Upton, NY (United States) SLAC National Accelerator Lab., Menlo Park, CA (United States) Lawrence Livermore National Lab. of California, Davis, CA (United States) Carnegie Mellon Univ., Pittsburgh, PA (United States) Brookhaven National Lab.
Zhan, Hu « less Publication Date: Mon Mar 11 00:00: Research Org.: Univ. Search DOE PAGES for author "Yoachim, Peter".The goal is to make LSST data products, including a relational database of about 32 trillion observations of 40 billion objects, available to the public and scientists around the world. The remaining 10\% of the observing time will be allocated to projects such as a Very Deep and Fast time domain survey. About 90\% of the observing time will be devoted to a deep-wide-fast survey mode which will uniformly observe a 18,000 deg2 region about 800 times (summed over all six bands) during the anticipated 10 years of operations, and yield a coadded map to r~27.5. The survey area will be contained more » within 30,000 deg2 with δ<+34.5°, and will be imaged multiple times in six bands, ugrizy, covering the wavelength range 320-1050 nm. The project is in the construction phase and will begin regular survey operations by 2022. The typical 5σ point-source depth in a single visit in r will be ~24.5 (AB). With these repeats, the LSST system is capable of imaging about 10,000 square degrees of sky in a single filter in three nights. The standard observing sequence will consist of pairs of 15-second exposures in a given field, with two such visits in each pointing in a given night.
The telescope will have an 8.4 m (6.5 m effective) primary mirror, a 9.6 deg2 field of view, and a 3.2 Gigapixel camera. LSST will be a wide-field ground-based system sited at Cerro Pachón in northern Chile. The LSST design is driven by four main science themes: probing dark energy and dark matter, taking an inventory of the Solar System, exploring the transient optical sky, and mapping the Milky Way. A vast array of science will be enabled by a single wide-deep-fast sky survey, and LSST will have unique survey capability in the faint time domain. (Abridged) We describe here the most ambitious survey currently planned in the optical, the Large Synoptic Survey Telescope (LSST).