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        NPARSEC : NTT Parallaxes of Southern Extremely Cool objects. Goals, targets, procedures and first results

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        906826.pdf (PDF, 317Kb)
        Author
        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.
        Dapra, M.
        Day-Jones, A.
        Goldman, B.
        Jones, H.R.A.
        Lattanzi, M.G.
        Leggett, S.K.
        Lucas, P.W.
        Mendez, R.
        Penna, J.L.
        Pinfield, D.J.
        Smith, Leigh
        Sozzetti, A.
        Vecchiato, A.
        Attention
        2299/13873
        Abstract
        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.
        Publication date
        2013-08
        Published in
        Monthly Notices of the Royal Astronomical Society
        Published version
        https://doi.org/10.1093/mnras/stt876
        Other links
        http://hdl.handle.net/2299/13873
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