Table 1
Adopted planetary characteristics of TRAPPIST-1 planets for climate simulations.
Parameter | Tb | Tc | Td | Te | Tf | Tg | Th | Unit |
---|---|---|---|---|---|---|---|---|
Rp | 1.09a | 1.06a | 0.77a | 0.92a | 1.05a | 1.13a | 0.75b | R⊕ |
Mp | 0.85a | 1.38a | 0.41a | 0.62a | 0.68a | 1.34a | 0.38 (arb.) | M⊕ |
gp | 7.07 | 12.14 | 6.75 | 7.22 | 6.11 | 10.34 | 6.6 (arb.) | m s−2 |
Semi-major axis | 0.011a | 0.015a | 0.021a | 0.028a | 0.037a | 0.045a | 0.060b | au |
Sp | 4.25a | 2.27a | 1.143a | 0.662a | 0.382a | 0.258a | 0.165b | S⊕ |
Sp | 5806 | 3101 | 1561 | 904 | 522 | 352 | 225 | W m−2 |
Spin-orbit resonance | 1:1 | |||||||
Period | 1.51a | 2.42a | 4.05a | 6.10a | 9.21a | 12.35a | 18.76b | Earth days |
Ωp | 4.82 | 3.00 | 1.80 | 1.19 | 0.790 | 0.589 | 0.388 | 10−5 rad s−1 |
Obliquity | 0 | ° | ||||||
Eccentricity | 0 |
Notes. Most of the values derive from Gillon et al. (2017)(a) and Luger et al. (2017)(b). Note that mass estimates are all compatible (at less than 1σ) with the TTV analysis of Wang et al. (2017) that included both Spitzer (Gillon et al. 2017) and K2 (Luger et al. 2017) transits.
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