Astrometric and Spectroscopic Confirmation of a Brown Dwarf Companion to GSC 08047-00232⋆ VLT/NACO deep imaging and spectroscopic observations


We report VLT/NACO imaging observations of the stars GSC 08047-00232 and HIP 6856, probable members of the large Tucana-Horologium association. During our previous ADONIS/SHARPII deep imaging survey, a substellar candidate companion was discovered around each star. Based on VLT/NACO astrometric measurements, we find that GSC08047-00232 and the faint… (More)


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