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The Large Synoptic Survey Telescope www.lsst.org Angelo Fausti - - PowerPoint PPT Presentation
The Large Synoptic Survey Telescope www.lsst.org Angelo Fausti - - PowerPoint PPT Presentation
The Large Synoptic Survey Telescope www.lsst.org Angelo Fausti (afausti@lsst.org) Tucson, AZ Sky Fest, LPI - Sep 2018 2,663 m (8,737 ft) + + + 35 ton Telescope 8.4m Mirror 3.2Gpixel Camera + + LSST family 300+ 10 floor Building
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2,663 m (8,737 ft)
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+ +
8.4m Mirror 35 ton Telescope 3.2Gpixel Camera 10 floor Building
+
LSST family 300+ Petascale Computing Facility
+ +
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From dream to reality
- Initial ideas, the “Dark Matter Telescope” in 1998
- LSST design and development proposal in 2003
- Mirror construction started in 2007 with private funds
- Top-ranked project in the 2010 Decadal Survey
- Construction started in 2014
- Commissioning will start in 2019
- Operations start in 2022 to conduct the 10-years survey!
US$ 473M US$ 168M US$ 30M
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Oversized ~ 9 m Overloaded ~40 ton
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M1/M3
A very compact design
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Wide Field of View 3.5 deg ~ 7 full Moons
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A 35-ton moving structure! The Telescope has to move really fast (cross the sky in about 18s). It has to stop and settle within 4s, take a 2 x 15s picture of the sky, and move again to the next position. Repeat that 1000 times every night... for 10 years...
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HSC COSMOS Ultra Deep Field ~ LSST 10 years depth
The sky as seen by LSST
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Redshift z=18.3 (T = 0.21 Gyr)
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Redshift z=18.3 (t = 0.21 Gyr) R = 1.6 Mpc/h
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Redshift z=5.7 (T = 1 Gyr) R = 4.6 Mpc/h
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Redshift z=1.4 (T = 4.7 Gyr) R = 13.12 Mpc/h
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Redshift z=0 (T = 13.6 Gyr) R = 31.25 Mpc/h
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Dark matter
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