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Determination of flaring plasma characteristics from RESIK X-ray spectra

Published online by Cambridge University Press:  01 November 2006

B. Sylwester ,
J. Sylwester ,
A. Kȩpa  and
K.J.H. Phillips
B. Sylwester
Affiliation:
Solar Physics Division, Space Research Center, Polish Academy of Sciences, 51 622 Wroclaw, Kopernika 11, Poland email: bs@cbk.pan.wroc.pl
J. Sylwester
Affiliation:
Solar Physics Division, Space Research Center, Polish Academy of Sciences, 51 622 Wroclaw, Kopernika 11, Poland email: bs@cbk.pan.wroc.pl
A. Kȩpa
Affiliation:
Solar Physics Division, Space Research Center, Polish Academy of Sciences, 51 622 Wroclaw, Kopernika 11, Poland email: bs@cbk.pan.wroc.pl
K.J.H. Phillips
Affiliation:
Mullard Space Science Laboratory, Holmbury St Mary, Surrey RH5 6NT, UK email: kjhp@mssl.ucl.ac.uk
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Abstract

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We present spectral analysis methods suitable for diagnostics of flaring plasma from RESIK spectra. RESIK is the uncollimated bent crystal spectrometer aboard the Russian CORONAS-F solar mission. It collected many flare and active region spectra in the wavelength range 3.3 Å–6.1 Å, where strong emission lines of Si, S, Ar, and K are present. Based on a careful instrument calibration the absolute fluxes in the individual spectral lines have been obtained. These fluxes have been used for determination of a set of thermodynamic parameters characterizing the emitting plasma and for studies their time behavior during selected flares.

Keywords

Sun: flaresX-raysspectroscopic plasma diagnostic
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S233: Solar Activity and its Magnetic Origin , March 2006 , pp. 165 - 168
Copyright
© 2006 International Astronomical Union