The <SUP>12</SUP>C/<SUP>13</SUP>C isotopic ratio at the dawn of chemical evolution
Context. The known mega metal-poor (MMP) and hyper metal-poor (HMP) stars, with [Fe/H] < −6.0 and < −5.0, respectively, likely belong to the CEMP-no class, namely, carbon-enhanced stars with little or no second peak neutron-capture elements. They are likely second-generation stars, and the few elements measurable in their atmospheres are used to
Molaro, P. et al.
Advertised on:
11
2023