Table 3
Results from our MCMC analysis.
| Parameter | TOI-1820 | TOI-2025 | TOI-2158 | |
|---|---|---|---|---|
| P | Period (days) | 4.860674 ± 0.000005 | 8.872078 ± 0.000007 | 8.60077 ± 0.00003 |
| T0 | Mid-transit time (BJD) | 2458903.0638 ± 0.0006 | 2458690.2898 ± 0.0004 |  |
| Rp/R* | Planet-to-star radius ratio | 0.0777 ± 0.0009 | 0.0736 ± 0.0004 | 0.0700 ± 0.0009 |
| a/R* | Semi-major axis to star radius ratio | 8.7 ± 0.3 |  |
 |
| K | Velocity semi-amplitude (m s−1) | 273 ± 4 | 396 ± 10 | 75 ± 4 |
| cos i | Cosine of inclination | 0.097 ± 0.005 |  |
 |
 |
0.20 ± 0.02 |  |
 |
|
 |
 |
0.643 ± 0.016 |  |
|
| γ1 | Systemic velocity FIES (m s−1) |  |
-383 ± 19 | 13 ± 9 |
| γ2 | Systemic velocity FIES+ (m s−1) | – |  |
 |
| γ3 | Systemic velocity Tull (m s−1) | 13947 ± 4 | – |  |
| σ1 | Jitter FIES (m s−1) |  |
 |
 |
| σ2 | Jitter FIES+ (m s−1) | – | 19 ± 6 |  |
| σ3 | Jitter Tull (m s−1) |  |
– |  |
| log A1 | GP amplitude TESS 30 min. |  |
−8.30 ± 0.06 |  |
| log τ1 | GP timescale TESS 30 min. (log days) |  |
 |
 |
| log A2 | GP amplitude TESS 2 min. |  |
 |
 |
| log τ2 | GP timescale TESS 2 min (log days) | −1.03 ± 0.14 |  |
 |
 (a,b) |
Quadratic trend (m s−1 d−2) | – | −0.0015 ± 0.0003 | −0.0020 ± 0.0003 |
 (a,b) |
Linear trend (m s−1 d−1) | – | 1.4 ± 0.2 |  |
| δMI | Dilution I-band/TESS |  |
– | – |
| δMB | Dilution B-band |  |
– | – |
| λ | Projected obliquity (°) | – |  |
– |
| v sin i* | Projected rotational velocity (km s−1) | – | 6.0 ± 0.3 | – |
| ζ | Macro-turbulence (km s−1) | – | 4 ± 1 | – |
| ξ | Micro-turbulence (km s−1) | – |  |
– |
| e | Eccentricity | 0.043 ± 0.008 | 0.41 ± 0.02 | <0.070 at 3σ(c) |
| ω | Argument of periastron (°) |  |
93 ± 2 |  |
| i | Inclination (°) | 84.4 ± 0.3 |  |
 |
| b | Impact parameter |  |
 |
 |
| T4,1 | Total transit duration (hours) | 2.92 ± 0.04 |  |
 |
| T2,1 | Time from 1st to 2nd contact (hours) | 0.61 ± 0.05 |  |
0.75 ± 0.07 |
| Rp | Planet radius (RJ) | 1.14 ± 0.02 | 1.117 ± 0.009 | 0.960 ± 0.012 |
| Mp(d) | Planet mass (MJ) | 2.3 ± 0.2 | 4.4 ± 0.3 | 0.82 ± 0.08 |
| ρp | Planet density (g cm−3) | 2.0 ± 0.2 | 3.9 ± 0.3 | 1.14 ± 0.12 |
| Teq(e) | Equilibrium temperature (K)(c) | 1375 ± 12 | 1167 ± 11 | 1188 ± 10 |
| a | Semi-major axis (AU) | 0.061 ± 0.003 | 0.092 ± 0.004 | 0.075 ± 0.004 |
Notes. The parameters above the dashed line are the stepping parameters, and below are the derived parameters. The value given is the median and the uncertainty is the highest posterior density at a confidence level of 0.68. (a)Zero-point for TOI-2158 is 2459302.92570 BJDTDB.(b)Zero-point for TOI-2025 is 2459124.41436 BJDtdb. (c)Two-sided 1σ distribution 
. (d)Calculated from Eq. (2). (e)Following Kempton et al. (2018).
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