Table 2: Physical parameters of BDs/VLMSs in Chamaeleon I derived from a comparison of synthetic GAIA-cond models and high-resolution UVES spectra using different line profile setups: (from left to right) effective temperature, surface gravity, lithium abundance and EW of lithium. The given results are for (i) a fit to the full range of free model parameters: $T_{{\rm eff}}$ , $\log(g)$ , $\log(\epsilon)$ , radial velocity and rotational velocity (first row of each observation) and (ii) for a fit with fixed effective temperature as determined by Comerón et al. (2000) (second row).

Object $T_{{\rm eff}}$ $\log(g)$ $\log(\epsilon)$ EW $_{{\rm Li}}$ $T_{{\rm eff}}$ $\log(g)$ $\log(\epsilon)$ EW $_{{\rm Li}}$

(K) (Å) (K) (Å)

Setup1 Setup2

Cha H $\alpha$ 2, MJD = 51 638.087 3100 4.5 0.9 0.33 3000 5.5 1.3 0.38

2900 3.5 1.0 0.34 2900 3.5 0.9 0.33

Cha H $\alpha$ 2, MJD = 51 658.096 3100 4.0 1.5 0.40 3000 5.5 1.6 0.45

2900 3.5 1.6 0.41 2900 3.5 1.6 0.41

Cha H $\alpha$ 2 sum 3100 4.0 1.4 0.39 3000 5.5 1.6 0.45

2900 3.5 1.4 0.39 2900 3.5 1.4 0.39

Cha H $\alpha$ 3, MJD = 51 638.987 3100 4.0 1.0 0.34 3000 5.5 1.3 0.38

2800 3.5 1.0 0.35 2800 3.5 1.0 0.35

Cha H $\alpha$ 3, MJD = 51 658.113 3100 4.0 1.5 0.40 3100 4.0 1.5 0.40

2800 3.5 1.5 0.41 2800 3.5 1.5 0.41

Cha H $\alpha$ 3 sum 3100 4.0 1.4 0.39 3100 4.0 1.4 0.39

2800 3.5 1.3 0.39 2800 3.5 1.3 0.39

Cha H $\alpha$ 4, MJD = 51 617.210 3100 4.0 1.8 0.44 3000 5.5 1.9 0.54

3000 3.5 1.8 0.43 3000 5.5 1.9 0.54

Cha H $\alpha$ 4, MJD = 51 617.236 3100 4.0 1.8 0.44 3000 5.5 1.9 0.54

3000 3.5 1.8 0.43 3000 5.5 1.9 0.54

Cha H $\alpha$ 4, MJD = 51 627.277 3100 4.0 1.4 0.39 3000 5.5 1.7 0.48

3000 3.5 1.5 0.40 3000 5.5 1.7 0.48

Cha H $\alpha$ 4, MJD = 51 627.303 3100 4.0 1.4 0.39 3000 5.5 1.6 0.45

3000 3.5 1.4 0.39 3000 5.5 1.7 0.48

Cha H $\alpha$ 4, MJD = 51 634.997 3100 4.0 1.5 0.40 3000 5.5 1.7 0.48

3000 3.5 1.6 0.41 3000 5.5 1.7 0.48

Cha H $\alpha$ 4, MJD = 51 635.023 3100 4.0 1.6 0.41 3100 4.0 1.6 0.41

3000 3.5 1.6 0.41 3000 5.5 1.7 0.48

Cha H $\alpha$ 4, MJD = 51 657.994 3100 4.0 1.6 0.41 3000 5.5 1.6 0.45

3000 3.5 1.6 0.41 3000 5.5 1.6 0.45

Cha H $\alpha$ 4 sum 3100 4.0 1.6 0.41 3000 5.5 1.7 0.48

3000 3.5 1.6 0.41 3000 5.5 1.7 0.48

Cha H $\alpha$ 5, MJD = 51 639.009 3100 4.5 1.6 0.43 3000 5.5 1.8 0.51

3000 3.5 1.8 0.43 3000 5.5 1.8 0.51

Cha H $\alpha$ 5, MJD = 51 658.128 3100 4.0 1.5 0.40 3000 5.5 1.6 0.45

3000 3.5 1.5 0.40 3000 5.5 1.6 0.45

Cha H $\alpha$ 6, MJD = 51 658.143 3100 4.0 1.8 0.44 3000 4.0 1.9 0.45

2800 3.5 1.8 0.43 2800 3.5 1.8 0.44

Cha H $\alpha$ 8, MJD = 51 639.100 3100 4.0 1.5 0.40 3000 5.5 1.6 0.45

2900 3.5 1.5 0.40 2900 3.5 1.5 0.40

Cha H $\alpha$ 8, MJD = 51 658.215 3100 4.0 1.6 0.41 3100 4.0 1.9 0.45

2900 3.5 1.7 0.42 2900 3.5 1.7 0.42

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