Computer Science – Performance
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.1123k&link_type=abstract
American Astronomical Society, AAS Meeting #211, #11.23; Bulletin of the American Astronomical Society, Vol. 39, p.748
Computer Science
Performance
1
Scientific paper
ACCESS is a recently approved series of rocket-borne sub-orbital missions and ground-based experiments that will establish a network of standard stars with absolute fluxes that are directly traceable to ground based laboratory standards maintained by NIST. The goal of this program is to establish a high-precision spectrophotometric calibration system in the visible and near-infrared. An absolute spectrophotometric calibration accuracy of <1% will be achieved in the 0.35-1.7 micron bandpass at a spectral resolution of greater than 500, which represents a significant improvement in the absolute calibration in the NIR bandpass. Standard star observations extending to 10th magnitude will establish the first links in a chain of stellar calibrators. Measurement of absolute fluxes of a small number of standard stars enables the existing networks of standards to be placed on an improved absolute scale and makes them available to all telescopes.
ACCESS will reduce uncertainties in the current standard star calibration system by: (1) judicious selection of standard stars, (2) observing above the Earth's atmosphere, (3) using a single optical path and detector, (4) establishing an a priori error budget, (5) performing NIST traceable sub-system and end-to-end payload calibrations, and (6) monitoring and tracking payload performance.
Having improved spectrophotometric standards is important for a broad range of missions and is relevant to many astrophysical problems. It is fundamental to the precise determination of dark energy measurements using SNeIa photometry. In addition, our understanding of stellar physics will be extended through stellar atmosphere modeling of our target stars.
Benford Dominic J.
Bohlin Ralph Charles
Deustua Susana E.
Dixon William V.
Feldman Paul D.
No associations
LandOfFree
ACCESS - Absolute Color Calibration Experiment for Standard Stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with ACCESS - Absolute Color Calibration Experiment for Standard Stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and ACCESS - Absolute Color Calibration Experiment for Standard Stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1474619