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

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Table 7

Proportion of C_enh and Ce-enhanced stars by population.

Population	Base count	C_enh	Percentage	$σ_{C_{e n h}}$ $\[\sigma_{C_{e n h}}\]$	Ce-enhanced	Percentage	$σ_{C e_{e n h}}$ $\[\sigma_{C e_{e n h}}\]$
Low α	39 175	351	0.90%	0.05%	376	0.96%	0.05%
Early High α	11 860	184	1.55%	0.11%	155	1.31%	0.10%
Late High α	5632	24	0.43%	0.09%	43	0.76%	0.12%

Notes. Proportions are expressed as a percentage of each population. The $σ_{C_{e n h}}$ $\[\sigma_{C_{e n h}}\]$ and $σ_{C e_{e n h}}$ $\[\sigma_{C e_{e n h}}\]$ columns show the expected natural statistical deviations based on a simple uniform binomial probability within each population and expressed as a percentage of the total.

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