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Table 1.
Bandpasses for the activity indexes considered in this work.
| S index (a) | Wavelength (Å) | Width(Å) |
|---|---|---|
| Red wing | 3901.07 | 20 |
| K emission | 3933.67 | 3.28 |
| H emission | 3968.47 | 3.28 |
| Blue wing | 4001.07 | 20 |
| Hα(b) | Wavelength (Å) | Width(Å) |
| Red wing | 6580.31 | 8.75 |
| Hα emission | 6562.81 | 1.60 |
| Blue wing | 6550.87 | 10.75 |
| Hβ(c) | Wavelength (Å) | Width(Å) |
| Red wing | 4845.0 | 10 |
| Hβ emission | 4861.32 | 1.60 |
| Blue wing | 4880.0 | 10 |
| Hγ(c) | Wavelength (Å) | Width(Å) |
| Red wing | 4320. | 10 |
| Hγ emission | 4340.46 | 1.60 |
| Blue wing | 4360. | 10 |
| Hδ(c) | Wavelength (Å) | Width(Å) |
| Red wing | 4085. | 10 |
| Hδ emission | 4101.76 | 1.60 |
| Blue wing | 4120. | 10 |
| Hϵ(c) | Wavelength (Å) | Width(Å) |
| Red wing | 3901.07 | 20 |
| Hϵ emission | 3970.07 | 1.60 |
| Blue wing | 4001.07 | 20 |
| He I D3(b) | Wavelength (Å) | Width(Å) |
| Red wing | 5881.0 | 5 |
| He emission | 5875.62 | 0.4 |
| Blue wing | 5869.0 | 5 |
| Na I D1 D2(b) | Wavelength (Å) | Width(Å) |
| Red wing | 5805.0 | 20 |
| D1 emission | 5895.92 | 0.5 |
| D2 emission | 5889.95 | 0.5 |
| Blue wing | 6090.0 | 20 |
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