Free Access
Table 3
Statistical analysis of chromospheric activity indicator 
and planetary parameters and between coronal activity indicator 
for stars with planets with semi-major axis apl ≤ 0.2 AU.
| Parameters | Spearman’s ρ | Probability p | Spearman’s ρ | Probability p |
| (Kashyap et al. 2009) | (Poppenhaeger et al. 2010 ) | |||
|
|
||||
 with log apl |
–0.26 ± 0.06 | 0.30 ± 0.12 | –0.29 ± 0.06 | 0.34 ± 0.10 |
| with log Mpl |
0.13 ± 0.07 | 0.61 ± 0.19 | 0.20 ± 0.08 | 0.52 ± 0.16 |
| with log 1 / apl × Mpl |
0.17 ± 0.06 | 0.51 ± 0.17 | 0.32 ± 0.06 | 0.29 ± 0.09 |
with  |
0.64 ± 0.09 | 0.008 ± 0.015 | 0.92 ± 0.04 | 5.0 × 10-5 ± 2 × 10-4 |
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.