Spectroscopy of new Pleiades brown dwarfs |
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| Authors: | L Festin |
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| Institution: | Astronomical Observatory, Box 515, 751 20 Uppsala, Sweden |
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| Abstract: | Follow-up spectroscopy of the four brown dwarf candidates discovered in an 850 arcmin2 optical/near-infrared survey of the Pleiades cluster is presented. All four candidates show spectra consistent with Pleiades membership and should be considered to be very probable members, as the possibility of their being field stars has been shown to be small. At l = 20.55 and I ? J = 3.40 our faintest candidate, NPL40, is the lowest mass brown dwarf spectroscopically identified in the Pleiades at present. Its mass was estimated to be 0.040 M⊙. |
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| Keywords: | stars: low-mass brown dwarfs open clusters and associations: individual: Pleiades |
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