Table 3
Inferred system parameters.
| Parameter | Units | Prior | Median and 68.3% CI |
|---|---|---|---|
| Star | |||
| Mean density, ρ* | (g cm−3) | U (5, 20) | 11.7 ± 0.8 |
| q1 TESS | U (0, 1) |  |
|
| q2 TESS | U (0, 1) |  |
|
| q1 ExTrA | U (0, 1) |  |
|
| q2 ExTrA | U (0, 1) |  |
|
| Planet b | |||
| Semi-major axis, a | (au) | 0.01808 ± 0.00015 | |
| Eccentricity, e |  |
||
| Argument of pericentre, ω | (°) | 240 ± 130 | |
| Inclination, ip | (°) |  |
|
| Radius ratio, Rp /R* |  |
||
| Scaled semi-major axis, a/R* | 11 0 ± 0 4 | ||
| Impact parameter, b |  |
||
| Transit duration, T14 | (h) | 1.231 ± 0.011 | |
| T0 – 2 460 000 | (BJDTDB) | U (36.6907, 36.6918) | 36.69124 ± 0.00010 |
| Orbital period, P | (days) | U (1.522757, 1.522761) | 1.5227591 ± 3 × 10−7 |
| RV semi-amplitude, K | (m s−1) | U (90, 110) | 98.9 ± 1.3 |
| Radius, Rp |  |
8.7 ± 0.4 | |
 |
0.77 ± 0.03 | ||
| Mass, Mp | (ME) | 86.7 ± 1.9 | |
| (MJ) | 0.273 ± 0.006 | ||
| Mean density, ρp | (g cm−3) | 0.75 ± 0.09 | |
| Surface gravity, log gp | (cgs) | 3.06 ± 0.03 | |
| Equilibrium temperature, Teq | (K) | 694 ± 15 | |
| Insolation flux | (FE) | 42.5 ± 1.9 | |
| r1 | U (0, 1) |  |
|
| r2 | U (0.20, 0.24) |  |
|
 |
U (−1, 1) | −0.02 ± 0.06 | |
 |
U (−1, 1) | −0.02 ± 0.10 | |
| Candidate planet c | |||
| Semi-major axis, a | (au) | 0.776 ± 0.011 | |
| Eccentricity, e | 0.66 ± 0.09 | ||
| Argument of pericentre, ω | (°) | 222 ± 14 | |
| Scaled semi-major axis, a/R* | 466 ± 22 | ||
| T0 – 2 460 000 | (BJDTDB) | U (−200, 350) | 92 ± 19 |
| Orbital period, P | (days) | U (350, 550) | 427 ± 7 |
| RV semi-amplitude, K | (m s−1) | U (0, 250) | 121 ± 27 |
| Minimum mass, Mp sin i | (MJ) | 1.66 ± 0.26 | |
| Equilibrium temperature, Teq | (K) | 107±3 | |
| Insolation flux | (FE) | 0.0230 ± 0.0012 | |
 |
U (−1, 1) |  |
|
 |
U (−1, 1) | −0 54 ± 0 18 | |
| RV | |||
| SPIRou jitter | (m s−1) | U (0.01, 80) | 27 ± 5 |
| SPIRou offset | (m s−1) | U (20 500, 20 800) | 20662 ± 16 |
| ESPRESSO jitter | (m s−1) | J (0.01, 10) |  |
| ESPRESSO offset | (m s−1) | U (20400, 20650) | 20 571 ± 9 |
| Photometry | |||
| Offset relative flux | (Relative flux) | N (0, 0.01) | (b) |
| Jitter | (ppm) | J (1, 1000) | (b) |
| Amplitude of the GP | (Relative flux) | J (10−6, 0.1) | (b) |
| Timescale of the GP | (days) | J (0.001, 10) | (b) |
Notes. The table lists: prior, posterior median, and 68.3% CI. Parameters without prior are derived parameters. (a)Upper limit, 95% confidence. (b)The parameters listed for the photometry are different for each TESS sector and for each individual transit observed with each of the telescopes of ExTrA. The parameters q1 and q2 are the quadratic limb-darkening coefficients parameterised using Kipping (2013). The parameters r1 and r2 are the impact parameter and transit depth parameterised using Espinoza (2018). The planetary equilibrium temperature is computed for zero albedo and full day/night heat redistribution. IAU 2012: au = 149 597 870 700 m. 
, 
, 
, 
, 
, 
. 
, 
, 
. CODATA 2018: G = 6.674 30 ×10−11 m3 kg−1 s−2. U(a, b): A uniform distribution defined between a lower a and an upper b limit. J(a, b): Jeffreys (or log-uniform) distribution defined between a lower a and upper b limit. Ν(μ, σ): Normal distribution prior with mean μ, and standard deviation σ.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.