Other
Scientific paper
Jul 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apjs...81..387f&link_type=abstract
Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 81, no. 1, July 1992, p. 387-408. Research supported by U.S. Navy
Other
153
Chromosphere, Extreme Ultraviolet Radiation, Solar Corona, Solar Radiation, Solar Wind, Skylab Program, Solar Spectra, Spectrographs
Scientific paper
A description of the lines from the most abundant ions in the EUV spectrum in the range 50-500 A that have special diagnostic significance is presented. These lines are from plasmas in the temperature range from 10 exp 5 to 10 exp 7 K. Their utility for determining temperature, density, and abundances is demonstrated. An objective grating spectrometer, based on the Skylab slitless spectrograph, for making celestial observations in the EUV spectral region with high spectral resolution is also described. Such an instrument, if equipped with a multilayer grating, can achieve efficiencies over limited EUV wavelength ranges that rival much larger telescope-spectrometer instruments for the observation of stars and other celestial objects.
Doschek George A.
Feldman Uri
Gursky Herbert
Mandelbaum P.
Seely John F.
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