| 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: |
 Click here to retrieve PDF version of paper (102KB) |
