Table 1
Statistics on selected stars for every survey.
| APOGEE-DR17 | GALAH-DR3 | GALAH-DR2 | ||
|---|---|---|---|---|
| Mg/Si < 1 | 12 815 (20.5%) | 3646 (12.5%) | 179 (3.8%) | |
| N* in Sect. 3 | 1 < Mg/Si < 2 | 49 796 (79.5%) | 25 719 (87.5%) | 4525 (96.2%) |
| Mg/Si < 1 | 8518 (23.1%) | 3705 (12.4%) | / | |
| N* in Sect. 4 | 1 < Mg/Si < 2 | 28 335 (76.9%) | 26251 (87.6%) | / |
Notes. Sections 3 and 4 require different selection criteria. Section includes stars with −0.5 < [Fe/H] < 0.5 to average metallicity bins with significant statistics. For every star, good spectroscopic quality flags are required for Si, Mg, S (GALAH has no S abundances), C, and O. Section 4 does not use metallicity cuts but requires good spectroscopic flags for every star for Si, Mg, S, C, and O, in addition to Ca and Ti, to compute [α/Fe].
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.