Table 7
Derived spectrum values.
| Wavelength | LTT 1445A | GJ 486 | ||
|---|---|---|---|---|
| log10(LBol) | 1 Å–20 µm | 31.49 | 31.66 | |
| f (XUV) | 1–912 Å | −3.45 | −4.55 | |
| f (FUV) | 912–1700Å | −4.33 | −4.64 | |
| f (XUVage) | 5–1700 | −3.40 | −4.30 | |
| f(NUV) | 1700–3200Å | −4.20 | −4.41 | |
| FUV/NUV | – | 0.75 | 0.58 | |
| Lyα/FUV | – | 0.57 | 0.49 | |
| LTT 1445Ab | LTT 1445Ac | GJ 486b | ||
| Fxuv,p (erg cm−2 s−1) | 1–912 Å | 2.67 × 103 | 5.49 × 103 | 1.50 × 103 |
Notes. We compute f (band) = log10(Lband/LBol), where LBol is in units of erg s−1. The value FXUV,p is the integrated XUV flux (1–912 Å) received by each planet, assuming orbital distance a from Table 1. We provide the value f (XUVage) because it is used to calculate stellar ages in Sect. 6.2 based on the XUV activity-age relationship from Engle (2024).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.