Absolute flux calibration of stars: calibration of the reference telescope

Details Absolute flux calibration of stars: calibration of the reference telescope Absolute flux calibration of stars: calibration of the reference telescope

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009metro..46s.219s&link_type=abstract

Metrologia, Volume 46, Issue 4, pp. S219-S223 (2009).

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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 µm to 1.7 µm.

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