Carbon enrichment in APOGEE disk stars as evidence of mass transfer in binaries

Open Access

Table 6

Standard deviations of abundances by population.

Population	Base count	[C/Fe]	[O/Fe]	[C/O]	[Ce/Fe]	$\frac{σ ([C / F e])}{σ ([O / F e])}$ $\[\frac{\sigma([C / F e])}{\sigma([O / F e])}\]$	No. O-poor	C_enh Count	Contamination %
Early high α	11 860	0.051	0.035	0.055	0.158	1.45	7	184	3.8%
Late High α	5632	0.035	0.029	0.036	0.11	1.21	6	24	25.0%
Low α	39 175	0.060	0.028	0.051	0.13	2.12	21	351	6.0%

Overall						34	559	6.1%

Notes. Columns 3–6 show the number of dex corresponding to 1σ divergence from the LOWESS mean for each abundance for each population. Column 6 show the ratio of $\frac{σ ([C / F e])}{σ ([O / F e])}$ $\[\frac{\sigma([C / F e])}{\sigma([O / F e])}\]$ . Column 8 shows the number of O-poor stars identified in the population. Column 9 shows the size of the population and column 10 shows the percentage contamination of C_enh stars by O-poor stars.

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.