Physics
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21725412k&link_type=abstract
American Astronomical Society, AAS Meeting #217, #254.12; Bulletin of the American Astronomical Society, Vol. 43, 2011
Physics
Scientific paper
Improvements in the precision of the astrophysical flux scale are needed to answer fundamental scientific questions ranging from cosmology to stellar physics. ACCESS - Absolute Color Calibration Experiment for Standard Stars (Kaiser et al., 2009) is a sub-orbital program with a rocket-borne payload that will enable the transfer of absolute laboratory detector standards from NIST to a network of stellar standards with a calibration accuracy of 1% and a spectral resolving power of R = 500 across the 0.35-1.7 micron bandpass. The ACCESS flight detector has been selected and initial tests have been performed. The detector flight electronics are being fabricated. The optical system fabrication is in progress. The ground calibration system fabrication and component testing has begun. The cornerstone of the ground calibration system is the artificial star system that will be used to transfer the NIST photodiode detector standards to the telescope payload and hence the stars. First flight is anticipated for late 2011 from White Sands Missile Range. We will present the instrument overview, status of the instrument fabrication, and the calibration and observation strategy. Support for this work was provided by NASA through grant NNX08AI65G and DOE through grant DE-FG02-07ER41506.
Benford Dominic J.
Bohlin Ralph Charles
Deustua Susana E.
Dixon William V.
Feldman Paul D.
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