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Smart, R. L; Tinney, C. G; Bucciarelli, B; Marocco, F; Abbas, U; Andrei, A; Bernardi, G; Burningham, B; Cardoso, C; Costa, E; Crosta, M. T; Daprá, M; Day-Jones, A; Goldman, B; Jones, H. R. A; Lattanzi, M. G; Leggett, S. K; Lucas, P; Mendez, R; Penna, J. L; Pinfield, D; Smith, L; Sozzetti, A; Vecchiato, A
Monthly notices of the Royal Astronomical Society, 08/2013, Letnik: 433, Številka: 3Journal Article
The discovery and subsequent detailed study of T dwarfs have provided many surprises and pushed the physics and modelling of cool atmospheres in unpredicted directions. Distance is a critical parameter for studies of these objects to determine intrinsic luminosities, test binarity and measure their motion in the Galaxy. We describe a new observational programme to determine distances across the full range of T-dwarf subtypes using the New Technology Telescope (NTT)/SOFI telescope/instrument combination. We present preliminary results for ten objects, five of which represent new distances.
