Discovery of a Metal-poor Field Giant with a Globular Cluster Second-generation Abundance Pattern
We report on the detection, from observations obtained with the Apache Point Observatory Galactic Evolution Experiment spectroscopic survey, of a metal-poor ([Fe/H] = -1.3 dex) field giant star with an extreme Mg-Al abundance ratio ([Mg/Fe] = -0.31 dex; [Al/Fe] = 1.49 dex). Such low Mg/Al ratios are seen only among the second-generation population
Fernández-Trincado, J. G. et al.
Fecha de publicación:
12
2016