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Table 3
HD 5278 system parameters derived from a joint ESPRESSO RVs and TESS photometry analysis.
| Parameter | Prior | Value |
|---|---|---|
| Fitted system parameters | ||
| Radius ratio Rp∕R⋆ |  (0.017,0.020) |
 |
| Inclination i (deg) |  (85,90) |
 |
| Stellar density ϱ⋆ (ϱ⊙) |  (0.66,0.04) |
 |
| Jitter Sector 1 σS1 |  (0,0.003) |
 |
| Jitter Sector 12 σS12 |  (0,0.003) |
 |
| Jitter Sector 13 σS13 |  (0,0.003) |
 |
| Jitter Sector 27 σS27 |  (0,0.003) |
 |
| u1 (fixed) | 0.24 | |
| u2 (fixed) | 0.30 | |
| Kb (m s−1) |  (0,5) |
1.93 |
| Pb (days) |  (14,14.5) |
14.339156 |
| Tc,b (BJD-2 450 000) |  (8681,8682) |
8680.69932 |
 |
 (-1,1) |
0.09 |
 |
 (-1,1) |
 |
| Kc (m s−1) |  (0,6) |
3.17 |
| Pc (days) |  (0,45) |
40.87 |
| Tc,c (BJD-2 450 000) |  (8420,8475) |
8431.8 |
 |
 (-1,1) |
 |
 |
 (-1,1) |
 |
| σjit,1 (m s−1) |  (0,10) |
0.83 |
| γ1 (m s−1) |  (-30 450,-30 350) |
−30 395.4 ± 0.4 |
| σjit,2 (m s−1) |  (0,10) |
 |
| γ2 (m s−1) |  (-30 450,-30 350) |
−30 396.4 ± 0.3 |
| Derived planetary parameters | ||
| Impact parameter bb |  |
|
| a∕R⋆ |  |
|
| Transit duration T14 (days) |  |
|
| eb | 0.08 (< 0.12) |
|
| ωb (rad) | 2.36 |
|
| Orbital semi-major axis ab (au) | 0.1202 ± 0.0013 | |
| Mass Mb (M⊕) |  |
|
| Radius Rb (R⊕) | 2.45 ± 0.05 | |
| Density ρb (g cm−3) |  |
|
| Surface gravity log gb (m s−2) |  |
|
| Equilibrium temperature Teq,b (K) | 943 ± 13 | |
| Insolation Sb (S⊕) | 132 ± 5 | |
| ec | 0.07 (<0.10) |
|
| ωc (rad) | 0.14 |
|
| Minimum mass Mc sin ic (M⊕) | 18.4 |
|
| Orbital semi-major axis ac (au) | 0.2416 ± 0.0027 | |
Notes. Errors and upper limits are the same as in Table 2.
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