Table 2
pEW measurements of different chromospheric lines for sample stars with valid pEW(He I IR) measurement (full table at CDS).
| Karmn | Name | Spec. | Teff (b) | pEW(He IR) (c) | σ(pEW(He IR)) | χ2 | pEW(Hα) | pEW(Ca IRT) | pEW(He D3) (d) | LX∕Lbol |
|---|---|---|---|---|---|---|---|---|---|---|
| type (a) | [K] | [Å] | [Å] | [Å] | [Å] | [Å] | ||||
| J00051+457 | GJ 2 | M1.0 | 3675 | 0.247 | 0.05 | 0.85 | 0.352 | 0.201 | −0.051 | ... |
| J00183+440 | GX And | M1.0 | 3615 | 0.118 | 0.049 | 0.925 | 0.324 | 0.261 | −0.047 | −4.672 |
| J00286-066 | GJ 1012 | M4.0 | 3398 | 0.076 | 0.042 | 2.648 | 0.138 | 0.208 | −0.043 | ... |
| J00389+306 | Wolf 1056 | M2.5 | 3537 | 0.154 | 0.05 | 1.33 | 0.278 | 0.24 | −0.06 | −4.771 |
| J00570+450 | G 172-030 | M3.0 | 3426 | 0.117 | 0.048 | 2.305 | 0.139 | 0.217 | −0.059 | ... |
| J01013+613 | GJ 47 | M2.0 | 3529 | 0.138 | 0.049 | 1.13 | 0.248 | 0.238 | −0.058 | −4.650 |
| J01019+541 | G 218-020 | M5.0 | 2900 | 0.121 | 0.05 | 1.014 | −5.015 | 0.038 | −0.543 | ... |
| J01025+716 | BD+70 68 | M3.0 | 3488 | 0.19 | 0.05 | 1.018 | 0.27 | 0.23 | −0.054 | −5.499 |
| J01026+623 | BD+61 195 | M1.5 | 3805 | 0.273 | 0.05 | 1.108 | 0.263 | 0.177 | −0.058 | −5.098 |
| J01339-176 | LP 768-113 | M4.0 | 3349 | 0.118 | 0.046 | 2.743 | −1.611 | 0.135 | −0.174 | −3.346 |
Notes. (a) Taken from Carmencita (Caballero et al. 2016). (b)Taken from Passegger et al. (2018). (c)Positive values of all given pEWs correspond to an absorption line, while negative values correspond to an emission line. (d) Normalisation effects give slightly negative values even for no line present. We use a threshold of pEW(He D3) < − 0.08 Å to accept a measurement as an emission line.
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