Table 1
Fundamental stellar parameters (top) and best-fit values for ΩE and ΩI, without (middle) and with (bottom) a prior on ΩE.
| KIC 004914923 | KIC 005184732 | KIC 006116048 | KIC 006933899 | KIC 010963065 | |
|
|
|||||
| Teff[K] | 5807 ± 89 | 5744 ± 63 | 5968 ± 58 | 5764 ± 46 | 6158 ± 57 |
| M / M ⊙ | 1.118 ± 0.020 | 1.205 ± 0.025 | 1.023 ± 0.021 | 1.096 ± 0.026 | 1.062 ± 0.021 |
| R / R ⊙ | 1.378 ± 0.009 | 1.342 ± 0.010 | 1.225 ± 0.008 | 1.574 ± 0.025 | 1.220 ± 0.009 |
| r cz / R | 0.724 | 0.731 | 0.757 | 0.786 | 0.714 |
| [ Fe / H ] | 0.091 ± 0.083 | 0.384 ± 0.025 | − 0.191 ± 0.049 | 0.126 ± 0.037 | − 0.189 ± 0.038 |
| Age [Gyr] | 6.23 ± 0.36 | 4.39 ± 0.13 | 5.70 ± 0.21 | 6.57 ± 0.30 | 4.18 ± 0.19 |
| ΩS [μHz] |
|
|
|
|
|
|
|
|||||
| Without prior | |||||
| ΩE [μHz] |
|
|
|
|
|
| ΩI [μHz] |
|
|
|
|
|
| (ΩI − ΩE) [μHz] |
|
|
|
|
|
| i [deg] |
|
|
|
|
|
|
|
|||||
| With prior | |||||
| ΩE [μHz] |
|
|
|
|
|
| ΩI [μHz] |
|
|
|
|
|
| (ΩI − ΩE) [μHz] |
|
|
|
|
|
| (ΩI − ΩE) / ΩE |
|
|
|
|
|
| i [deg] |
|
|
|
|
|
Notes. Top: the effective temperature Teff, mass M, radius R, metallicity [ Fe / H ], age, and radius of the tachocline rcz are derived from stellar structure models. These structure models are obtained from fits to the oscillation mode frequencies and spectroscopic measurements of the effective surface temperature from Bruntt et al. (2012). The surface rotation ΩS is computed from multiple measurements of rotation over the Kepler mission lifetime. All values are adapted from Nielsen et al. (2015). Middle: best-fit values for ΩE, ΩI, and the angle of the stellar inclination angle i, without the application of a prior. Bottom: best-fit values for ΩE, ΩI, and i with the PDF of ΩS used as a prior on ΩE. For all rotation rates and the inclination angle i the errors are given by the 16th and 84th percentile values of the posterior densities of each parameter. For the relative difference between ΩE and ΩI, the average of the percentiles is between − 29% and + 34%, indicating the range of likely configurations of the differential rotation.
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.