Absolute calibration of photometry at 1 through 5 microns

Details Absolute calibration of photometry at 1 through 5 microns Absolute calibration of photometry at 1 through 5 microns

May 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985aj.....90..896c&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 90, May 1985, p. 896-899. NSF-NASA-USAF-supported research.

Astronomy and Astrophysics

Astronomy

185

Calibrating, Infrared Spectra, Radiant Flux Density, Solar Spectra, Stellar Spectrophotometry, Astronomical Photometry, Spectral Bands, Standards, Stellar Magnitude, Stellar Spectra

Scientific paper

The solar-analog method is used to determine the absolute calibration of photometry in the J, H, K, L, and M bands to an accuracy of 3 percent, (5 percent at M). This calibration agrees well with the direct calibration obtained by Blackwell et al. (1983); this agreement gives confidence that the calibration is known to an accuracy of 2 percent to 3 percent. The agreement also implies that the behavior of solar type stars is well understood in the infrared and that such stars make reliable standards for calibration of nonstandard photometric bands and for planetary reflectance studies. Both methods indicate that Vega is slightly brighter than indicated by atmospheric models.

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