Free Access
Table 1
Classification of stars in our observational sample based on the SAGA database.
Definition of stellar group | Number |
of stars | |
|
|
[Fe/H] < −1 (MP) | 1944 |
MP with detected barium and europium (including limits) | 725 |
− MP with barium and europium abundances | 451 |
− MP with [Ba/Fe] > 1.0 | 60 |
− MP-s ([Ba/Fe] > 1.0 and [Ba/Eu] > 0.0) | 50 |
− MP-r/s ([Ba/Fe] > 1.0, [Ba/Eu] > 0.0, and [Eu/Fe] > 1.0) | 26 |
− MP-r ([Eu/Fe] > 1.0, [Ba/Eu] ≤ 0.0) | 26 |
|
|
MP with carbon abundances | 947 |
− MP with [C/Fe] ≤ 1.0 | 763 |
− MP with [C/Fe] > 1.0 (CEMP) | 184 |
− CEMP-no† | 75 |
− CEMP with barium abundances | 152 |
− CEMP with [Ba/Fe] > 1.0 without europium abundances | 55 |
− CEMP with barium and europium abundances | 56 |
− CEMP-r | 5 |
− CEMP with [Ba/Fe] > 1.0 (with europium abundances) | 51 |
− CEMP-s | 48 |
− CEMP-r/s | 26 |
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.