Title: | THE X-RAY PACKAGE FOR SPECTROSCOPIC MEASUREMENTS OF SOLAR PLASMA COMPOSITION | |
Authors: | J. Sylwester and Z. Kordylewski | |
Abstract: | We present the instrument package dedicated for spectroscopic studies of coronal flaring plasma composition. The package consists of two Bragg spectrometers RESIK and DIOGENESS. These instruments are to be launched aboard the Coronas-F solar observatory later this year. The composition of coronal flaring plasma heated to several million Kelvins (MK) is known to vary between individual structures up to the factor of around 4. The analysis of spectra to be measured will allow to determine absolute abundances of several important elements including low and high FIP ones. It will be possible to investigate potential fast (time scales below one minute) changes of plasma composition in flares and hotter active regions. This will lead to better understanding of the processes causing elemental differentiation within the coronal plasma. The RESIK spectrometer is being developed by the Consortium including NRL (USA), MSSL (UK), RAL (UK), IZMIRAN (Russia) and Space Research Centre (SRC) of Polish Academy of Sciences. DIOGENESS has been developed in Poland and in Astronomical Institute of Czech Republic. |
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