Open AccessSpectroscopy of new Pleiades brown dwarfs
Author(s) -
Festin L.
Publication year - 1998
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.1998.01847.x
Subject(s) - pleiades , physics , brown dwarf , astrophysics , spectroscopy , stars , astronomy
Follow‐up spectroscopy of the four brown dwarf candidates discovered in an 850 arcmin 2 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⊙.