Determination of coronal abundances of sulphur, calcium and iron using the yohkoh bragg crystal spectrometer

Details Determination of coronal abundances of sulphur, calcium and iron using the yohkoh bragg crystal spectrometer Determination of coronal abundances of sulphur, calcium and iron using the yohkoh bragg crystal spectrometer

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993adspr..13..395f&link_type=abstract

Advances in Space Research, Volume 13, Issue 9, p. 395-398.

Computer Science

20

Scientific paper

Using spectra from the Bragg Crystal Spectrometer on Yohkoh we have derived coronal abundances of sulphur, calcium and iron during several flares from the ratio of the flux in the resonance line to the nearby continuum. Multi-thermal effects have been taken into account using differential emission measure analysis. We have also determined the abundance of S in cool active regions during a period of very low solar activity. We compare the coronal abundances of S, Ca and Fe with their photospheric values.

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