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|Author(s):||Allan W. Smith; John T. Woodward IV; Colleen A. Jenkins; Steven W. Brown; Keith R. Lykke;|
|Title:||Absolute Flux Calibration of Stars; Calibration of the Reference Telescope|
|Published:||June 02, 2009|
|Abstract:||Absolute stellar photometry is based on 1970s terrestrial measurements of the star Vega with instruments calibrated using the Planckian radiance from a Cu fixed-point blackbody. Significant advances in absolute radiometry have been made in the last 30 years that offer the potential to improve both terrestrial and space-based absolute stellar photometry. These advances include the development of detector-based radiometry utilizing spectrally tunable laser sources and improved atmospheric transmittance modelling and characterization. We describe the applications of these new technologies for ground-based spectral irradiance measurements of standard stars at wavelengths ranging from 0.35 mm to 1.7 mm.|
|Pages:||pp. S219 - S223|
|Keywords:||calibration, lasers, radiometry, standard stars|
|Research Areas:||Remote Sensing, Radiometry|
|PDF version:||Click here to retrieve PDF version of paper (105KB)|