Brown Dwarfs in the Hyades and Beyond?
Brown Dwarfs in the Hyades and Beyond?
We have used both the Low-Resolution Imaging Spectrograph and the High Resolution Echelle Spectrograph on the Keck telescopes to obtain spectra of 12 candidate members of the Hyades identified by Leggett & Hawkins. All of the objects are chromospherically active, late-type M dwarfs, with Hα equivalent widths varying from 1 …