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Table 2.
Summary of the best indicators for the different stellar physical parameters.
| Stellar parameters | Index | Quality | Notes |
|---|---|---|---|
| (1) | (2) | (3) | (4) |
| Y atmospheric windows | |||
| Paϵ,Paδ,Paγ | S | F, G stars | |
| Teff | Ti,TiO A,TiO B,FeH,FeTi,Fe, VO | S | G, K, M stars |
| CSi | W | Stars of all spectral type | |
| log g | TiO,FeH,VO,CN | S/W | Very dependent on star spectral type |
| [Fe/H] | TiO B | S | Only in supergiant stars |
| J atmospheric windows | |||
| Teff | K1 B,K2 A,K2 B | S | Similar trend in stars of all spectral types |
| K1 A,Na,Si | S | M stars, methane contamination | |
| log g | FeCr,K1 B,Na,Si,Al | S | Dependent on star spectral type |
| K1 A | S | All spectral type stars | |
| H atmospheric windows | |||
| Teff | CO1,CO2,CO3,FeH1,FeH2,COMg | S | Mostly in F, G stars |
| log g | Br10,Si,CO4 | S | Stars of all spectral types |
| L atmospheric windows | |||
| Teff | Pfγ | W | In stars earlier than G2 |
| log g | Mg3,Hu15 | W | Stars of all spectral type |
Notes. For the details, please refer to Sect. 7. The columns show the following: (1) stellar physical parameters (2) spectral feature (3) quality of the index: strong (S) or weak (W) (4): notes on the index.
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