Table A.1
Summary of the system parameters of K2-285 determined in Sect. 2 using only the fit to the photometric data from the K2 mission, and in Sect. 5 with the Pyaneti code fitting the photometric and RV data simultaneously.
| Parameter | K2-285b | K2-285c | K2-285d | K2-285e | Stellar signal |
|---|---|---|---|---|---|
| Model fits to K2 data only | |||||
| Orbit inclination ip (°) |  |
 |
 |
 |
|
| Semi-major axis a (R*) |  |
 |
 |
 |
|
| Transit epoch T0 (JD−2 454 833) |  |
 |
 |
 |
|
| Planet radius Rp (R⊕) |  |
 |
 |
 |
|
| Orbital period Porb (days) |  |
 |
 |
 |
|
| Impact parameter b |  |
 |
 |
 |
|
| Transit depth |  |
 |
 |
 |
|
| Transit duration τ14 (h) | 2.57 ± 0.02 | 3.08 ± 0.03 | 2.96 ± 0.05 | 2.76 ± 0.07 | |
| Linear limb-darkening coefficient u1 |  |
 |
 |
 |
|
| Quadratic limb-darkening coefficient u2 |  |
 |
 |
 |
|
| Eccentricitya e | 0 | ||||
| Longitude of periastrona ω⋆ (°) | 90 | ||||
| Model parameters: Pyaneti | |||||
| Orbital period Porb (days) |  |
 |
 |
 |
 |
| Transit epoch T0 (JD−2 450 000) |  |
 |
 |
 |
 |
| Scaled planet radius Rp∕R⋆ |  |
 |
 |
 |
– |
| Impact parameter b |  |
 |
 |
 |
|
 |
0 | 0 | 0 | 0 | |
 |
0 | 0 | 0 | 0 | |
| Doppler semi-amplitude K (m s−1) |  |
 |
 |
 |
 |
| Systemic velocity γCARMENES (km s−1) |  |
||||
| Systemic velocity γHARPS-N (km s−1) |  |
||||
Limb-darkening coefficient  |
 |
||||
Limb-darkening coefficient  |
 |
||||
| Derived parameters: Pyaneti | |||||
| Planet mass Mp (M⊕) |  |
 |
<6.5 | <10.7 | |
| Planet radius Rp (R⊕) |  |
 |
 |
 |
|
| Planet density ρp (g cm−3) |  |
 |
|||
| Surface gravity gp (cm s−2) |  |
 |
|||
| Surface gravityc gp (cm s−2) |  |
 |
|||
| Scaled semi-major axis a∕R⋆ |  |
 |
 |
 |
|
| Semi-major axis a (AU) |  |
 |
 |
 |
|
| Orbit inclination ip (°) |  |
 |
 |
 |
|
| Transit duration τ14 (h) |  |
 |
 |
 |
|
| Equilibrium temperatured Teq (K) |  |
 |
 |
 |
|
| Insolation F (F⊕) |  |
 |
 |
 |
|
| Stellar density (from light curve) |  |
||||
| Linear limb-darkening coefficient u1 |  |
||||
| Quadratic limb-darkening coefficient u2 |  |
||||
Notes. (a) Fixed. (b) q1 and q2 as defined by Kipping (2013). (c) Calculated from the scaled parameters as described by Winn (2010). (d)Assuming albedo = 0.
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