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astro-ph.SR2019★ 1 cited
Long-term optical monitoring of the solar atmosphere in Italy
S. L. Guglielmino, I. Ermolli, P. Romano +8
Probably, the long-term monitoring of the solar atmosphere started in Italy with the first telescopic observations of the Sun made by Galileo Galilei in the early $17^{\mathrm{th}}…
astro-ph.SR2010★ 2 cited
Radiative emission of solar features in Ca II K
S. Criscuoli, I. Ermolli, J. Fontenla +4
We investigated the radiative emission of different types of solar features in the spectral range of the Ca II K line. We analyzed full-disk 2k x 2k observations from the PSPT Prec…