Institution: | Córdoba Observatory and CONICET, Laprida 854, 5000 Córdoba, Argentina;Institute of Astronomy, Madingley Road, Cambridge CB3 0HA;Córdoba Observatory and SeCyT, Universidad Nacional de Córdoba, Argentina;Astronomical Institute, Tohoku University, Aoba, Sendai 980-8578, Japan;Department of Physics &Astronomy, University of Johns Hopkins, Baltimore, MD 21218, USA;Instituto de Física, Univ. Fed. Río Grande do Sul, CP 15051, Porto Alegre, Brazil |