Table 4
Description of the pyaneti model of TOI-2196 b from Sect. 3.3 and the adopted stellar parameters used in the model from Sect. 3.2.
| Parameter | Units | Priors (a) | Final value |
|---|---|---|---|
| Stellar para meters | |||
| M* | Stellar mass (M⊙) | ℱ[1.032] | 1.032 ± 0.038 |
| R* | Stellar radius (R⊙) | ℱ[1.043] | 1.043 ± 0.017 |
| Teff | Effective temperature (K) | ℱ[5634] | 5634± 31 |
| Fitted parameters | |||
| T0 | Transit epoch (BJDTDB- 2457000) | U[2036.4888, 2036.5288] |  |
| Porb | Orbital period (days) | U[1.1943, 1.1963] |  |
| e | Eccentricity | ℱ[0] | 0 |
| ω | Argument of periastron (degrees) | ℱ[90] | 90 |
| b | Impact parameter | U[0, 1] |  |
| a/R* | Scaled semi-major axis | N[4.6, 0.1] | 4.61 ± 0.10 |
| Rp/R* | Scaled planet radius | U[0.01, 0.10] |  |
| K | Doppler semi-amplitude variation (m s−1) | U[0, 50] |  |
| q1 | Limb-darkening coefficient, TESS | N[0.26, 0.10] | 0.27 ± 0.10 |
| q2 | Limb-darkening coefficient, TESS | N[0.47, 0.10] | 0.47 ± 0.10 |
| q1 | Limb-darkening coefficient, LCOGT CTIO | N[0.52, 0.10] | 0.51 ± 0.10 |
| q2 | Limb-darkening coefficient, LCOGT CTIO | N[0.17, 0.10] | 0.18 ± 0.09 |
| q1 | Limb-darkening coefficient, LCOGT SSO | N[0.52, 0.10] | 0.54 ± 0.10 |
| q2 | Limb-darkening coefficient, LCOGT SSO | N[0.17, 0.10] | 0.18 ± 0.09 |
| q1 | Limb-darkening coefficient, LCOGT SAAO | N[0.52, 0.10] | 0.53 ± 0.10 |
| q2 | Limb-darkening coefficient, LCOGT SAAO | N[0.17, 0.10] | 0.17 ± 0.10 |
| Derived parameters | |||
| Mb | Planet mass (M⊕) | 26.0 ± 1.3 | |
| Rb | Planet radius (R⊕) | 3.51 ± 0.15 | |
| i(b) | Inclination (degrees) |  |
|
| a | Semi-major axis (au) | 0.02234 ± 0.00060 | |
| F | Instellation (F⊕) | 2000 ± 100 | |
| ρb | Planet density (g cm−3) |  |
|
| gb | Planet surface gravity (cm s−2) | 2100 ± 200 | |
| Teq | Equilibrium temperature (K) | 1860 ± 20 | |
| Λ(d) | Jeans escape parameter | 30 ± 2 | |
| TSM(e) | Transmission spectroscopy metric |  |
|
| T14 | Total transit duration (h) |  |
|
| T23 | Full transit duration (h) |  |
|
| T12 | Ingress and egress transit duration (h) |  |
|
| Additional parameters | |||
 |
Linear trend HARPS (m s−1 day s−1) | U[-100, 100] | −0.238 ± 0.019 |
 |
Systemic velocity HARPS (km s−1) | U[-1.0218, 1.0208] | 0.1008 ± 0.0079 |
| σFl | RV jitter HARPS (m s−1) | ℑ[10−3, 10−1] |  |
| σTESS | TESS light curve jitter | ℑ[10−2, 10−3] | 0.002433 ± 1.7e − 05 |
| σCTIO | LCOGT CTIO light curve jitter | ℑ[10−2, 10−3] |  |
| σsso | LCOGT SSO light curve jitter | ℑ[10−2, 10−3] |  |
| σSAAO | LCOGT SAAO light curve jitter | ℑ[10−2, 10−3] |  |
Notes. (a)U[a, b] refers to uniform priors in the range a− b, ℱ [a] to a fixed value a, N[a, b] to Gaussian priors with mean a and standard deviation b, and ℑ[a, b] to modified Jeffrey’s priors (Eq. (16) in Gregory 2005). (b)Orbit inclination relative to the plane of the sky. (c)Dayside equilibrium temperature, assuming no heat redistribution and zero albedo (Eq. (2)). (d)Jeans escape parameter defined as Λ = GMpmH/(kBTeqRp) in Fossati et al. (2017). (e)Kempton et al. (2018).
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