ANALYSIS OF THE SPECTRA OF 2 PLEIADES BROWN DWARFS - TEIDE-1 AND CALAR-3

Results of the numerical simulation of spectra of the Pleiades brown d warfs Calar 3 and Teide 1 are discussed Synthetical spectra were compu ted for several model atmospheres from a grid of Allard and Hauschildt (1995). From the comparison of computed and observed spectra we have found that: the spectrum of Teide 1 may be reasonably well fitted by J OLA in the visible region, including the spectral regions around the L i I lines at lambda lambda 670.8 and 812.6 nm. The structure of absorp tion bands observed in the spectrum of Teide 1 and Calar 3 depends mai nly on T-eff The dependence on gravity is much weaker. A comparison of observed and computed spectra shows that effective temperatures of th ese Pleiades brown dwarfs is T-eff approximate to 2900 K.