Free Access
Table 9
Parameter posteriors for the HD 40307 system.
| Orbital parameters | Planet b | Planet c | |
|
|
|||
| Orbital period, P• | [days] | 4.31150 ± 0.00027 | 9.62070 ± 0.0012 |
| RV amplitude, K• | [m s-1] | 1.79 ± 0.13 | 2.31 ± 0.13 |
| Eccentricity, e• | <0.161; <0.168† | <0.098; <0.103† | |
| Mean longitude at epoch, L0• | [deg] | 163.5 ± 4.0 | 321.5 ± 3.2 |
| Semi-major axis of relative orbit, a | [AU] | 0.0475 ± 0.0011 | 0.0812 ± 0.0018 |
| Minimum mass, Msini | [M⊕] | 3.81 ± 0.30 | 6.43 ± 0.44 |
| Orbital parameters | Planet d | Planet f | |
|
|
|||
| Orbital period, P• | [days] | 20.4185 ± 0.0052 | 51.56 ± 0.14 |
| RV amplitude, K• | [m s-1] | 2.44 ± 0.13 | 0.75 ± 0.13 |
| Eccentricity, e• | <0.117; <0.122† | <0.335; <0.352† | |
| Mean longitude at epoch, L0• | [deg] | 185.4 ± 3.1 | 142 ± 11 |
| Semi-major axis of relative orbit, a | [AU] | 0.1340 ± 0.0029 | 0.2485 ± 0.0054 |
| Minimum mass, Msini | [M⊕] | 8.74 ± 0.58 | 3.63 ± 0.60 |
| Velocity drift⋆ | |||
|
|
|||
| Systemic velocity, V0• | [km s-1] | 31.334376 ± 9.9 × 10-5 | |
| Scaling constant, α• | [m s-1/dex] | 22.1 ± 2.1 | |
| Linear• | [dex yr-1] | 0.03761 ± 8.9 × 10-4 | |
| Quadratic• | [dex yr-2] | 0.00488 ± 4.2 × 10-4 | |
| Cubic• | [dex yr-3] | − 0.001617 ± 8.5 × 10-4 | |
| Noise model‡ | |||
|
|
|||
Additional noise at  =-5, σJ | -5.0• |
[cm s-1] | 81.8 ± 8.5 | |
| Slope, αJ• | [ m s-1/dex] | 8.1 ± 1.6 | |
| rms(O−C) | [m s-1] | 1.733 ± 0.022 | |
Notes. The epoch is BJD = 2 454 521.6791. The argument of periastron ω is unconstrained for these nearly-circular orbits.
(†)
Eccentricity does not differ significantly from zero; the 95% and 99% upper limits are reported.
(⋆)
See Sect. 4.3.
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.