Institution: | 1. INAF - Osservatorio Astronomico di Palermo, Piazza del Parlamento 1, Palermo 90134, Italy;2. Dip. di Fisica e Chimica, Università di Palermo, Via Archirafi 36, Palermo 90123, Italy;3. INAF - IASF, Via Ugo La Malfa 153, Palermo 90146, Italy;4. Institute for Applied Problems in Mechanics and Mathematics, Naukova Street 3-b, Lviv 79060, Ukraine;1. ISDC, Astronomy Department, University of Geneva, Ch. d’Ecogia 16, Versoix 1290, Switzerland;2. AstroParticle and Cosmology (APC), 10 rue Alice Domon et Léonie Duquet, F-75205 Paris Cedex 13, France;1. ISDC, Astronomy Department, University of Geneva, Ch. d’Ecogia 16, Versoix, 1290, Switzerland;2. Astroparticules et Cosmologie, 10 rue Alice Domon et Leonie Duquet, F-75205 Paris Cedex 13, France;2. Desert Blooms Observatory, Benson, AZ, U.S.A. |