Table 1.
Updated coefficients and range of applicability of the T̂ vs. (G−Ks)0 relation (top table) and the T̂ vs. (G−Ks)0 relation (bottom table), Y = a0 + a1X + a2X2 + a3 [Fe/H] + a4 [Fe/H]2 + a5X [Fe/H], where X and Y are either the (G−Ks)0 color or the normalized effective temperature T̂ = Teff/5040.
| T eff | (G−Ks)0 range | [Fe/H] range | a0 | a1 | a2 | a3 | a4 | a5 | RMS[Teff(K)] | %outliers | N |
|---|---|---|---|---|---|---|---|---|---|---|---|
| T̂ | [1.6, 3.4] | [−2.3, 0.4] | 1.591 ± 0.021 | −0.413 ± 0.018 | 0.048 ± 0.004 | 0.009 ± 0.001 | – | – | 47.7 | 0.2 | 855 |
| Color | Teff range (K) | [Fe/H] range | a0 | a1 | a2 | a3 | a4 | a5 | RMS[G−K] | %outliers | N |
| (G−Ks)0 | [3761, 5288] | [−2.3, 0.4] | 12.884 ± 0.423 | −18.592 ± 0.886 | 7.554 ± 0.464 | −0.080 ± 0.115 | 0.022 ± 0.008 | 0.158 ± 0.121 | 0.04 | 0.2 | 855 |
Notes. The range of temperatures of the [T̂, (G−Ks)0] calibration (second table) is given in Teff (not T̂).
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