Diagnostics of Non-Thermal Distribution from RESIK and RHESSI Flare Spectra

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F12%3A00386736" target="_blank" >RIV/67985815:_____/12:00386736 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Diagnostics of Non-Thermal Distribution from RESIK and RHESSI Flare Spectra
Original language description
Solar flare spectra observed by the X-ray spectrometers RESIK and RHESSI with high energy resolution enabled us to analyse possible non-thermality of plasma electron distribution in the keV range. For RESIK diagnostics (in the 2-4 keV range) we assumed that the bulk of the plasma is represented by the so-called n-distribution, which describes the deviations from the Maxwellian distribution by two parameters: n and T. Using thick-target approximation for RHESSI spectral analysis, we obtained characteristics of injected electron power-law distribution in the deka-keV range. The event presented here shows a very good time correlation of non-thermality obtained from the RESIK spectra with appearance of non-thermal component in RHESSI and/or radio spectra.However, a thermal component was still present in RHESSI. Both spectral and imaging information in RHESSI soft and hard X-ray ranges were used for the estimation of the ratio of thermal to non-thermal electron densities of the X-ray emitt
Czech name
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Czech description
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Project
<a href="/en/project/GA205%2F09%2F1705" target="_blank" >GA205/09/1705: Diagnostics of the non-thermal electron distributions in the solar korona</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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