Physics
Scientific paper
Feb 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985soph...95..323t&link_type=abstract
Solar Physics (ISSN 0038-0938), vol. 95, Feb. 1985, p. 323-329. Previously announced in STAR as N84-33325.
Physics
118
Plasma Temperature, Solar X-Rays, Sun, Broadband, Curve Fitting, Goes 1, Spectra, Temperature Dependence, Temporal Resolution, Transfer Functions
Scientific paper
The authors have developed expressions which give the effective color temperatures and corresponding emission measures for solar X-ray events observed with instruments onboard any of the GOES satellites. To simulate the solar X-ray input at a variety of plasma temperatures, they used theoretical spectra provided by D. L. McKenzie. These spectra were folded through the wavelength dependent transfer functions for the two GOES detectors as given by Donnelly et al. (1977). The resulting detector responses and their ratio as a function of plasma temperature were then fit with simple analytic curves. These fits reproduce the calculated color temperatures within 2% and the calculated emission measures within 5%. With the theoretical spectra provided by McKenzie, similar expressions can be determined for any pair of broadband X-ray detectors whose sensitivities are limited to wavelengths between 0.2 and 100 Å.
Crannell Carol J.
Starr Richard
Thomas Robert J.
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