Institution: | 1. Observatoire Astronomique de Strasbourg, Université de Strasbourg, CNRS, UMR 7550, 11 rue de l’Université, 67000 Strasbourg, France;2. Centro de Astrofísica de Valparaíso y Departamento de Física y Astronomía, Universidad de Valparaíso, Chile;3. Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064, USA;4. Astronomical Institute of the Academy of Sciences, Boçní II 1401, CZ-14100 Prague 4, Czech Republic |