| Affiliation: | Dipartimento di Astronomia, Universitàdi Padova, vicolo dell'Osservatorio 2, I-35122 Padova, Italy;European Southern Observatory, 3107 Alonso de Cordova, Santiago, Chile;INAF-Osservatorio Astronomico di Padova, vicolo dell'Osservatorio 5, I-35122 Padova, Italy;Max-Planck Institut für extraterrestrische Physik, Giessenbachstrasse, D-85748 Garching, Germany;Department of Astrophysics, University of Oxford, Keble Road, Oxford OX1 3RH;Universitäs-Sternwarte, Scheinerstrasse 1, D-81679 Muenchen, Germany;H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL |
