EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 663 (July 2022) A&A, 663 (2022) A134 Full HTML
Open Access

Table 4

Inferred system parameters.

Parameter Units Prior Median and 68.3% CI Stable MAP Stable median and 68.3% CI
Star
Stellar mass, M* [M⊙] N(0.958,0.048) 0.967 ± 0.049 0.954
Stellar radius, R* N(0.921,0.016) 0.920 ± 0.016 0.913 0.912 ± 0.014
Stellar mean density, ρ* [g cm−3 ] 1.76 ± 0.12 1.77 1.76 ± 0.12
Surface gravity, log ɡ [cgs] 4.497 ± 0.025 4.497
Kipping (2013) q1, q2 CLEAR U(0,1) 0.304, 0.421
Kipping (2013) q1, q2 Johnson-R U(0,1) 0.106, 0.98
Kipping (2013) q1, q2 RISE U(0,1) 0.80 ± 0.11, 0.269 ± 0.062 0.802, 0.272
Kipping (2013) q1, q2 TESS U(0,1) 0.26, 0.72
Planet b
Semi-major axis, a [au] 0.0825 ± 0.0014 0.08214
Eccentricity, e 0.208
Argument of pericentre, ω [°] 63.7 ± 8.3 62.6
Inclination, i [°] S(0, 180) 89.32 89.30 ± 0.24
Longitude of the ascending node, Ω [°] 180 (fixed at tref) 180 180
Mean anomaly, M0 [°] 17.8
U(−1, 1) 0.204 ± 0.056 0.210 0.219 ± 0.041
U(−1, 1) 0.413 ± 0.039 0.405
Mass ratio, Mp/M* U(0, 1) 0.000284 ± 0.000019 0.000309
Radius ratio, Rp/R* U(0, 1) 0.08436 ± 0.00058 0.08532
Scaled semi-major axis, α/R* 19.34
Impact parameter, b 0.185
T′0 − 2 450 000 [BJDtdb] U(6957, 8957) 7957.48172 ± 0.00022 7957.48190
P′ [d] U(0, 1000) 8.80366
K′ [ms−1] 29.7 ± 2.0 32.0
Planet mass, Mp [Mj] 0.288 ± 0.021 0.308
Planet radius, Rp 0.756 ± 0.014 0.758
Planet mean density, ρp [g cm−3 ] 0.829 ± 0.077 0.878
Planet surface gravity, log ɡp [cgs] 3.124
Planet c
Semi-major axis, α [au] 0.2053 ± 0.0034 0.2044
Eccentricity, e 0.1791
Argument of pericentre, ω [°] 22.9 25.7 26.1 ± 9.4
Inclination, i [°] S(90, 180) 120.6 ± 7.3 106.7
Longitude of the ascending node, Ω [°] U(90, 270) 191.6
Mean anomaly, M0 [°] 260.5 ± 3.5 260.4
U(−1, 1) 0.381 0.382 ± 0.030
U(−1, 1) 0.183 0.187 ± 0.062
Mass ratio, Mp/M* U(0, 1) 0.000417 ± 0.000040 0.000406 0.000394 ± 0.000027
Scaled semi-major axis, α/R* 48.0 ± 1.1 48.12
Impact parameter, b 21.2 ± 4.5 12.4
T′0 − 2 450 000 [BJDtdb] U(6957, 8957) 7971.54
P′ [d] U(0, 1000) 34.5412 ± 0.0028 34.54626
K′ [ms−1] 23.7 ± 2.2 25.47
Planet mass, Mp [MJ] 0.424 ± 0.046 0.406
Mp sin i [MJ] 0.361 ± 0.036 0.389
Mutual inclination, I [°] 20.7 20.8 ± 4.6

Notes. The table lists: Prior, posterior median, and 68.3% credible interval (CI) for the photodynamical analysis (Sect. 6), maximum a posteriori (MAP) and median, and 68.3% CI for the stable samples (Sect. 7.5). The Jacobi orbital elements are given for the reference time tref = 2 457 957.48167 BJDTDB. Additional parameters are in Table A.4. The ‘stable MAP’ solution is the nominal solution used in Sects. 7.5 and 7.7. We note that P′ and T′0 should not be confused with the period or the time of conjunction, respectively, and they were only used to reduce the correlations between jump parameters, replacing the semi-major axis and the mean anomaly at (M0−E+e sin E) with . CODATA 2018: . IAU 2012: au = 149 597 870 700 m . IAU 2015: . N(μ,σ): normal distribution with mean μ and standard deviation σ. U (α, b): a uniform distribution defined between a lower a and upper b limit. S (a, b): A sinusoidal distribution defined between a lower a and upper b limit.

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.