Physics – Optics
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21941305d&link_type=abstract
American Astronomical Society, AAS Meeting #219, #413.05
Physics
Optics
Scientific paper
The Dark Energy Survey (DES) is a next generation optical survey aimed at understanding the expansion rate of the universe using four complementary methods: weak gravitational lensing, galaxy cluster counts, baryon acoustic oscillations, and Type Ia supernovae. To perform the survey, the DES Collaboration is building the Dark Energy Camera (DECam), a 3 square degree, 570 Megapixel CCD camera that will be mounted at the prime focus of the Blanco 4-meter telescope at the Cerro Tololo Inter-American Observatory. CCD production has finished, yielding roughly twice the required 62 2kx4k detectors. The construction of DECam is finished. Integration and commissioning on a "telescope simulator" of the major hardware and software components, except for the optics has concluded at Fermilab. Final assembly of the optical corrector is underway at University College, London. Most components have already been received at CTIO, where installation has started. "First-light" will be in May or June 2012. This oral presentation will describe DES and the technical design and status of DECam.
Dark Energy Survey Collaboration
Diehl Thomas H.
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