The GOSSIP project tackles the challenge of inverting highly sparse Fourier data by developing greedy algorithms to optimally select sampling points. This is crucial for compact solar X-ray telescopes, as the  ESA’s STIX telescope, which can only capture a limited number of indirect measurements (visibilities) due to hardware constraints. A key mathematical aspect of the project is the analysis of how uncertainties in the sampling locations propagate through the regularized Fourier inversion process. We are also interested in studying and testing new approximation methods for other physical solar problems, such as the detection of coronal mass ejections.

Ludovico Bruni Bruno (starting in June at the Politecnico di Torino)

Giulio Paolucci (University of Bologna)

Alessia Guidetti (University of Genova)

Stefano De Marchi (University of Padova), Francesco Marchetti (University of Padova), Valeria Marras (Politecnico di Torino), Gianalfredo Nicolini (INAF-OATo), Michele Piana (University of Genova), Gabriele Santin (University of Venezia), Roberto Susino  (INAF-OATo), Daneiele Telloni  (INAF-OATo), Matteo Trombini (Politecnico di Torino), Anna Volpara (University of Genova)