Table 1
Physical and orbital parameters of the GJ 436 b system.
| Parameter | Value | Reference (b) |
|---|---|---|
| Star | ||
| Teff (K) | 3586 ± 36 | R21 |
| log g (cgs) | 4.841 ± 0.009 | R21 |
| [Fe/H] (dex) | 0.10 ± 0.08 | R21 |
| v sin i* (m s−1) (a) | 290 ± 50 | B22 |
| Prot (day) | 44.09 ± 0.08 | B18 |
| R* (R⊙) (a) | 0.425 ± 0.006 | M22 |
| M* (M⊙) | 0.441 ± 0.009 | R21 |
| L* (L⊙) | 0.023 ± 0.006 | S19 |
| K* (m s−1) (a) | 17.38 ± 0.17 | T18 |
| Planet | ||
| a (AU) (a) | 0.0286 ± 0.0002 | M22 |
| Rp (R⊕) (a) | 3.83 ± 0.06 | M22 |
| Mp (M⊕) | 25.4 ± 2.1 | B18 |
| ρp (g cm−3) | 2.10 ± 0.10 | This work |
| gp (m s−2) | 14.11 ± 0.46 | This work |
| Kp (km s−1) | 100.5 ± 8.3 | This work |
| P (day) (a) | 2.64389803 ± 0.00000026 | L14 |
| Tc (BJD) | 2454873.01582 ± 0.00004 | K22 |
| T14 (h) | 1.009 ± 0.034 | B15 |
| i (deg) (a) | 86.8 ± 0.1 | B18 |
| e (a) | 0.152 ± 0.009 | T18 |
| ω (deg) (a) | 325.8 ± 5.6 | T18 |
| b | 0.806 ± 0.031 | B15 |
| Teq (K) | 690 ± 10 | T16 |
Notes. (a) Parameters used in Bourrier et al. (2022). (b) R21: Rosenthal et al. (2021); B22: Bourrier et al. (2022); M22: Maxted et al. (2022); S19: Stassun et al. (2019); T18: Trifonov et al. (2018); B18: Bourrier et al. (2018b); L14: Lanotte et al. (2014); K22: Kokori et al. (2022); B15: Baluev et al. (2015); T16: Turner et al. (2016).
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