EGU23-13784, updated on 26 Feb 2023
EGU General Assembly 2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

A multi-thermal analysis of M-class flare observed  in common by STIX and XSM

Anna Kepa, Marek Siarkowski, Arun Kumar Awasthi, Barbara Sylwester, and Janusz Sylwester
Anna Kepa et al.
  • Space Research Centre, Solar Physics Division, Wroclaw, Poland

During nearly three years of operation, STIX aboard Solar Orbiter observed thousands of flares.   Many of them were simultaneously observed by Solar X-Ray Monitor (XSM) on board Indian Chandrayaan-2 circling the Moon.  We present results of a multi-wavelength study for  one selected flare  of M GOES class as seen from 1.a.u. STIX data provided  the opportunity for a detailed analysis of hard X-ray emission in several energy bands including the light curves, reconstructed hard X-ray images and spectra. The differential emission measure diagnostics of the flaring plasma have been carried out based on interpretation of the XSM X-ray spectra. Using the differential evolution (DE) approach we have determined the “full” model of emitting source including the temperature, emission measure and elemental abundances as determined simultaneously throughout the flare.  We discuss patterns of elemental composition history for individual plasma temperature components.

How to cite: Kepa, A., Siarkowski, M., Awasthi, A. K., Sylwester, B., and Sylwester, J.: A multi-thermal analysis of M-class flare observed  in common by STIX and XSM, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-13784,, 2023.