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Table 1
Planetary and stellar parameters used to produce the forward models and the boundary used in our retrieval analyses for the primordial atmosphere of the hot Jupiter and the Neptunian planet.
| Stellar parameters | ||
|---|---|---|
| HD 209458 | HD 219666 | |
| Sp. type | G0 V | G5 V |
| Rs (R⊙) | 119(a) | 1.03(b) |
| Ms (M⊙) | 1.23(a) | 0.92(b) |
| Ts (K) | 6091(a) | 5527(b) |
| d (pc) | 48(a) | 94(b) |
| mv | 7.65(c) | 9.81(d) |
| Hot Jupiter - HD 209458b | ||
|---|---|---|
| Input | Boundary | |
| Rp (RJ) | 1.39 | (0.9,1.5) |
| Mp (MJ) | 0.73 | (0.5,1) |
| Tp (K) | 1450 | (100,4000) |
| Neptunian planet - HD 219666b | ||
|---|---|---|
| Input | Boundary | |
| Rp (RJ) | 0.42 | (0.4,0.44) |
| Mp (MJ) | 0.05 | (0.02,0.07) |
| Tp (K) | 1041 | (100,4000) |
References. (a)Stassun et al. (2017), (b)Esposito et al. (2019), (c)del Burgo & Allende Prieto (2016),(d)Høg et al. (2000).
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