The interpretation of the spectral line intensities from the chase spectrometer on Spacelab 2

Details The interpretation of the spectral line intensities from the chase spectrometer on Spacelab 2 The interpretation of the spectral line intensities from the chase spectrometer on Spacelab 2

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990soph..129...31l&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 129, Sept. 1990, p. 31-81. Research supported by SERC.

Physics

36

Coronal Holes, Grazing Incidence, Line Spectra, Solar Spectrometers, Spacelab, Nasa Space Programs, Solar Atmosphere, Solar Corona

Scientific paper

The solar spectral intensities obtained with the NASA Spacelab 2 mission's Coronal Helium Abundance Spacelab Experiment grazing-incidence telescope and spectrometer are presently studied in order to ascertain error sources due to the application of the differential emission measure technique in analyses of such data. An emission measure model is derived which reproduces the observed spectral intensities with an average accuracy of + or - 60 percent. Contributing factors to this level of accuracy are uncertainties as to the values adopted for the abundances of the elements and the atomic data used in the analysis.

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