Table 1
XUV irradiation of TRAPPIST-1 planets.
| FX | FEUV | FLyα | Γion | Ṁtot | |
| (5−100 Å) | (100−912 Å) | ||||
|
|
|||||
| T-1b | 1102 |
400 |
414 |
7.6 |
46 |
| T-1c | 588 |
213 |
221 |
4.1 |
14 |
| T-1d | 296 |
107 |
111 |
2.0 |
9 |
| T-1e | 171 |
62 |
64 |
1.2 |
6 |
| T-1f | 99 |
36 |
37 |
0.7 |
5 |
| T-1g | 67 |
24 |
25 |
0.5 |
2 |
| T-1h | 34 |
12 |
13 |
0.2 |
− |
Notes. Fluxes in erg s-1 cm-2, hydrogen photoionization rate Γion in ×10-6 s-1, mass loss rate Ṁtot in 106 g s-1. X-ray flux is derived from Wheatley et al. (2017). The mass of TRAPPIST-1 h is unconstrained, and we did not estimate its mass-loss rate. Uncertainties on the EUV flux were estimated by accounting for both the uncertainty on the Ly-α flux and the Linsky et al. (2014) relation.
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