On the Interpretation of the Optical Spectra of L-type Dwarfs

Ya. Pavlenko, M. R. Zapatero Osorio, R. Rebolo

We present synthetic optical spectra in the range 640-930 nm of a sample of field L dwarfs and the brown dwarf GL229B. Our computations show that Li, Na, K, Rb, and Cs govern the s…