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Publication Citation: Absolute Flux Calibration of Stars; Calibration of the Reference Telescope

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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.
Citation: Metrologia
Volume: 46
Pages: pp. S219 - S223
Keywords: calibration; lasers; radiometry; standard stars
Research Areas: Remote Sensing, Radiometry
PDF version: PDF Document Click here to retrieve PDF version of paper (105KB)