A possible signature of non-uniform Be-\alpha relationships for the Galaxy

TL;DR

This study identifies systematic differences in Be-lpha relationships between low- and high-lpha\ stars, highlighting the importance of considering Galactic populations separately when studying Be evolution.

Contribution

It reveals non-uniform Be-lpha elationships across different Galactic populations, emphasizing the need for careful sample selection in Galactic chemical evolution studies.

Findings

Differences in Be-lpha elationships between stellar populations

Potential inaccuracies in mixed population analyses

Importance of population-specific studies for Be evolution

Abstract

Most of the previous studies on beryllium abundances in metal-poor stars have taken different Galactic populations as a whole when investigating the production and evolution of Be. In this Letter, we report on the detection of systematic differences in [\alpha/H]-A(Be) relationships between the low- and high-\alpha\ stars which were identified by previous works. We remind that one should be more careful in investigating the Galactic evolution of Be with a sample comprising different Galactic populations, because such a mixed sample may lead to inaccurate Be-Fe/Be-O relationships.