The telescope and the double Fabry-Pérot interferometer for the ADAHELI solar space mission.

Greco, V.; Cavallini, F.; Berrilli, F.; Velli, Marco; Roselli, L.; Bigazzi, A.; Moretti, P. F.; Romoli, Marco; Orsini, S.; Sabatini, P.; Carbone, V.; Consolini, G.; Di Mauro, M. P.; Ermolli, I.; Pietropaolo, E.; Romano, P.; Ventura, P.; Valdettaro, L.; White, S. M.; Zuccarello, F.; Cauzzi, G.; Giammaria, F.; Reardon, K.; Briguglio, R.; Landi, Simone; Vecchio, A.; Lepreti, F.; Sorriso Valvo, L.; Contarino, L.; Guglielmino, S.; De Pontieu, B.; Cardini, D.; Chieffi, A.; Milillo, A.; Mura, A.; De Angelis, E.; Mangano, V.; Selci, S.; Criscuoli, S.; Giorgi, F.; Alimenti, F.; Palazzari, V.; Biferale, L.; Cantarano, S.; Del Moro, D.; Egidi, A.; Penza, V.; Piazzesi, R.; Stangalini, M.; Vantaggiato, M.; Viticchiè, B.; Casolino, M.; De Santis, C.; Sparvoli, R.

doi:10.1117/12.856617

ADvanced Astronomy for HELIophysics (ADAHELI) is a Small Mission to study the structure and fast dynamics of the low solar atmosphere, performing Visible-NIR monochromatic and broad-band observations. The mission will achieve millimeter full disk observations as well. The ADAHELI Team has succesfully completed, in December 2008, the Phase A study awarded by the Italian Space Agency (ASI). The Interferometer for SOlar Dynamics (ISODY), on board the ADAHELI satellite, comprises a Gregorian telescope and its focal plane suite. The advanced design focal plane suite uses fast CMOS cameras for investigating photospheric and chromospheric fast dynamics and structure. ISODY is equipped with a pioneering focal plane suite composed of a spectral channel, based upon a tandem of Fabry-Perot interferometers operating in the visible-NIR spectral region, a broad band channel for high resolution imaging, and a correlation tracker used as an image stabilization system. ADAHELI's mission profile has been tailored to limit the spacecraft' s radial velocity in the Sunward direction, to not exceed ?4 km/s, during 95% of the yearly orbit, to allow a continuous use of the on-board interferometer.

The telescope and the double Fabry-Pérot interferometer for the ADAHELI solar space mission / V. Greco, F. Cavallini, F. Berrilli, M. Velli, L. Roselli, A Bigazzi, P. F. Moretti, M. Romoli, S. Orsini, P. Sabatini, V. Carbone, G. Consolini, M. P. Di Mauro, I Ermolli, E. Pietropaolo, P. Romano, P. Ventura, L. Valdettaro, S. M. White, F. Zuccarello, et al.. - STAMPA. - (2010), pp. 773142-773142-9. [10.1117/12.856617]