We present the results of photometric , astrometric , and spectroscopic follow-up of L dwarf candidates identified in the Hyades cluster by .
We obtained low-resolution optical spectroscopy with the OSIRIS spectrograph on the Gran Telescopio de Canarias for all 12 L dwarf candidates as well as new J -band imaging for a subsample of eight to confirm their proper motion .
We also present mid-infrared photometry from the Wise Field Infrared Survey Explorer ( WISE ) for the Hyades L and T dwarf candidates and estimate their spectroscopic distances , effective temperatures , and masses .
We confirm the cool nature of several L dwarf candidates and confirm astrometrically their membership , bridging the gap between the coolest M dwarfs and the two T dwarfs previously reported in the Hyades cluster .
These members represent valuable spectral templates at an age of 625 Myr and slightly super solar metallicity ( Fe/H = + 0.13 ) .
We update the Hyades mass function across the hydrogen-burning limit and in the substellar regime .
We confirm a small number numbers of very-low-mass members below \sim 0.1 M _ { \odot } belonging to the Hyades cluster .