Table 2
Composite abundance index offsets between hosts of small and large planets.
| Composite index | t-test p value | ΔMean (dex) | NS | NL |
|---|---|---|---|---|
| [(CNO + Fe)/H]† | 0.000005 | 0.23 | 49.63 | 54.36 |
| [CNO/H]† | 0.000008 | 0.24 | 49.63 | 54.36 |
| [(Rock + CNO)/H]† | 0.000009 | 0.23 | 41.63 | 47.36 |
| [(Ref + CNO)/H]† | 0.000009 | 0.22 | 40.63 | 47.36 |
| [Fe/H] | 0.000016 | 0.15 | 49.63 | 54.36 |
| [Rock/H] | 0.000131 | 0.12 | 41.63 | 47.36 |
| [Rock/Fe] | 0.000138 | −0.06 | 41.63 | 47.36 |
| [Vol/Ref]† | 0.003257 | 0.13 | 39.63 | 47.36 |
Notes. The number of host stars in each group is denoted as NS for the small-planet sample and NL for the large-planet sample. (†)Indices involving C and N abundances are affected by lower reliability owing to flagged measurements in GALAH DR4 (see Sect. 2.3). The corresponding results should be interpreted with caution.
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.