ISSI Visiting Scientists Programme
The RHESSI mission has been launched by NASA
on February 5, 2002 in order to provide crucial insights in the analysis of
solar flares, by combining 2D imaging with the spectral information given by
The aim of this proposal is to perform both the analysis of RHESSI spectra and the reconstruction of RHESSI images by applying regularization techniques for the solution of numerically unstable inverse problems. Our research team is composed of scientists with physical and mathematical background and has a long-standing experience in the study of inverse problems from both formal and applied sides.
In particular, our intent is:
to infer information on the electron dynamical spectra in the solar plasma from measurements of bremsstrahlung X-ray radiation and to explore the implications for electron acceleration, propagation, and energy budget which are fundamental to flare physics;
to investigate a thermal interpretation of the emission by reconstructing the emission measure differential in temperature;
to restore X-ray images from back-projected
maps of the time-modulated profiles provided by RHESSI collimators.
The final goal of this research will be the
integration of the information inferred
through such an analysis approach into the theoretical models for the
of the emission mechanisms in solar plasma during flares.
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