Near-Infrared Adaptive Optics Spectroscopy of Binary Brown Dwarf HD   130948B and C
  We present near-infrared spectroscopy of low-mass companions in a nearby triple system HD 130948 (Gliese 564, HR 5534). Adaptive optics on the Subaru Telescope allowed spectroscopy of the individual components of the 0".13 binary system. Based on a direct comparison with a series of template spectra, we determined the spectral types of HD 130948B and C to be L4 +- 1. If we take the young age of the primary star into account (0.3-0.8 Gyr), HD 130948B and C most likely are a binary brown dwarf system. 
M. Goto (1), N. Kobayashi (1), H. Terada (1), W. Gaessler (1), T.   Kanzawa (1), H. Takami (2), N. Takato (2), Y. Hayano (2)...