Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...201.9203b&link_type=abstract
American Astronomical Society, 201st AAS Meeting, #92.03; Bulletin of the American Astronomical Society, Vol. 34, p.1258
Astronomy and Astrophysics
Astronomy
Scientific paper
The SuperNova/Acceleration Probe (SNAP) science program requires photometric discovery and detailed follow-up observations of at least 2000 Type Ia supernovae with redshifts ranging from 0.3 to 1.7. The data are sent to the ground station and analyzed every few days in order to schedule a spectroscopic measurement near peak luminosity. The SNAP imager has a large, 0.7 square degree instrumented field of view and is comprised of CCD and MCT devices to span the wavelength range of 350 nm to 1700 nm. A 2D-symmetric array of fixed filters is deployed over the sensors and the focal plane is operated in a step-and-stare mode to perform broadband photometry over fixed regions of the sky. The science requirements and satellite operational constraints that lead to this particular focal plane configuration will be described. The R&D activities we are undertaking to insure timely availability of the CCD and MCT sensors will also be presented. This work has been supported by the U.S. Dept. of Energy, Office of Science, under contract DE-AC03-76SF00098.
Bebek Chris J.
SNAP Collaboration
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