Abundance of young α-enhanced stars (yαr) in recent high-resolution spectroscopic surveys.
|Sample||R Gal a||N b||1σ/2σ yαr|
|Fuhrmannc, d< 25 pc||8||424||0/0|
|Bensby et al.d||8||714||8 (1.1%)/1 (0.1%)|
|GESe, | ZGal | < 0.3 kpc||6–9||55||0/0|
|GESe, | ZGal | > 0.3 kpc||6–9||91||3 (3.3%)/1 (1.1%)|
|LRa01f||9–14||288||3 (1.0%)/2 (0.7%)|
|LRc01f, | ZGal | < 0.3 kpc||6–7.5||151||4 (2.6%)/2 (1.3%)|
|LRc01f, | ZGal | > 0.3 kpc||4–6.5||183||21 (11.5%)/13 (7.1%)|
The volume-complete sample of Fuhrmann (2011);
Hipparcos volume (Bensby et al. 2014);
iDR1 (Bergemann et al. 2014);
Martig et al. (2015). Outliers were defined in a different manner than in the present work.
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