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Table 3
Median and 1σ limits of the marginalized a posteriori probability distributions for the jump and system parameters from our global MCMC analysis of Spitzer and TRAPPIST photometry (Sect. 3).
| MCMC 1 | MCMC 2 | MCMC 3 | |
| e = 0 | e ≥ 0 | e = 0, LD free | |
|
|
|||
| Jump parameters | |||
| M∗ [M⊙] | 0.176 ± 0.009 (p) | 0.176 ± 0.009 (p) | 0.176 ± 0.009 (p) |
| Teff [K] | 3250 ± 100 (p) | 3250 ± 100 (p) | 3250 ± 100 (p) |
| [Fe/H] [dex] | 0.1 ± 0.1 (p) | 0.1 ± 0.1 (p) | 0.1 ± 0.1 (p) |
| dF3.6 μm [%] | 1.3545 ± 0.0085 | 1.3521 ± 0.0083 | 1.342 ± 0.015 |
| dF4.5 μm [%] | 1.3676 ± 0.0039 | 1.3673 ± 0.0039 | 1.365 ± 0.011 |
| dFI + z [%] | 1.377 ± 0.020 | 1.376 ± 0.021 | 1.385 ± 0.026 |
| dFocc,3.6 μm [ppm] |
|
|
|
| <205 (99.7% confidence) | <585 (99.7% confidence) | <184 (99.7% confidence) | |
| dFocc,4.5 μm [ppm] | 70 ± 35 |
|
67 ± 35 |
| <190 (99.7% confidence) | <158 (99.7% confidence) | <177 (99.7% confidence) | |
| A3.6 μm [ppm] |
|
|
|
| <68 (99.7% confidence) | <166 (99.7% confidence) | <78 (99.7% confidence) | |
| O3.6 μm [deg] |
|
|
|
| A4.5 μm [ppm] |
|
|
|
| <68 (99.7% confidence) | <68 (99.7% confidence) | <73 (99.7% confidence) | |
| O4.5 μm [deg] |
|
|
|
| b′ [R∗] | 0.385 ± 0.022 |
|
0.367 ± 0.032 |
| W [min] | 52.52 ± 0.14 | 52.52 ± 0.13 | 52.45 ± 0.15 |
| T0 [BJDTDB] | 2 454 980.74900 ± 0.00010 | 2 454 980.74901 ± 0.00010 | 2 454 980.74898 ± 0.00008 |
| P [d] | 1.58040417 ± 0.00000022 | 1.58040415 ± 0.00000020 | 1.58040421 ± 0.00000018 |
|
0 (fixed) | −0.05 ± 0.10 | 0 (fixed) |
|
0 (fixed) | −0.13 ± 0.21 | 0 (fixed) |
| c1(3.6 μm) | 0.143 ± 0.010 | 0.143 ± 0.010 |
|
| c2(3.6 μm) | −0.392 ± 0.010 | −0.391 ± 0.010 | −0.77 ± 0.54 |
| c1(4.5 μm) | 0.189 ± 0.010 | 0.189 ± 0.010 | 0.258 ± 0.039 |
| c2(4.5 μm) | −0.3999 ± 0.0070 | −0.3995 ± 0.0070 |
|
| c1(I + z) | 0.749 ± 0.063 | 0.753 ± 0.068 | 0.87 ± 0.11 |
| c2(I + z) | −0.53 ± 0.14 | −0.54 ± 0.15 |
|
|
|
|||
| Stellar parameters | |||
| R∗ [R⊙] | 0.2213 ± 0.0043 |
|
0.2198 ± 0.0045 |
| Luminosity L∗ [R⊙] |
|
|
|
| Density ρ∗ [ρ⊙] | 16.25 ± 0.46 |
|
16.53 ± 0.57 |
| Surface gravity log g∗ [cgs] | 4.994 ± 0.012 |
|
4.999 ± 0.014 |
| u1(3.6 μm) | −0.0210 ± 0.0052 (p) | −0.0209 ± 0.0053 (p) |
|
| u2(3.6 μm) | 0.1852 ± 0.0050 (p) | 0.1852 ± 0.0045 (p) |
|
| u1(4.5 μm) | −0.0046 ± 0.0050 (p) | −0.0044 ± 0.0048 (p) |
|
| u2(4.5 μm) | 0.1976 ± 0.0030 (p) | 0.1975 ± 0.0029 (p) |
|
| u1(I + z) | 0.193 ± 0.049 (p) | 0.194 ± 0.049 (p) |
|
| u2(I + z) | 0.363 ± 0.063 (p) | 0.366 ± 0.060 (p) | 0 ± 0.26 |
|
|
|||
| Planet parameters | |||
| (Rp/R∗)3.6 μm | 0.11638 ± 0.00037 | 0.11638 ± 0.00035 |
|
| (Rp/R∗)4.5 μm | 0.11694 ± 0.00017 | 0.11693 ± 0.00017 |
|
| (Rp/R∗)I + z | 0.11735 ± 0.00086 | 0.11732 ± 0.00090 | 0.1177 ± 0.0011 |
| a/R∗ | 14.45 ± 0.15 |
|
|
| a [au] | 0.01488 ± 0.00025 | 0.01489 ± 0.00025 | 0.01486 ± 0.00025 |
| i [deg] | 88.47 ± 0.10 |
|
88.55 ± 0.14 |
| e | 0 (fixed) |
|
0 (fixed) |
| ω [deg] | − |
|
− |
| ecosω | 0 (fixed) |
|
0 (fixed) |
| esinω | 0 (fixed) |
|
0 (fixed) |
| Teq [K]a | 604 ± 19 |
|
603 ± 19 |
| Rp,3.6 μm [R⊕] | 2.805 ± 0.056 |
|
2.776 ± 0.061 |
| Rp,4.5 μm [R⊕] | 2.821 ± 0.056 |
|
2.799 ± 0.061 |
| Rp,I + z [R⊕] | 2.830 ± 0.062 |
|
2.823 ± 0.069 |
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