A possible signature of non-uniform Be-αrelationships for the Galaxy

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 [α/H]-A(Be) relationships between the low- and high-α 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.

12 pages, 3 figures; accepted for publication in ApJ Letter

References in corpus (4)

• The Dual Origin of Stellar Halos
• A Short Scale Length for the α-Enhanced Thick Disk of the Milky Way: Evidence from Low-Latitude SEGUE Data
• Beryllium abundances in metal-poor stars
• Possible signature of hypernova nucleosynthesis in a beryllium rich halo dwarf

Cited by in corpus (8)

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• The Gaia-ESO Survey: the chemical structure of the Galactic discs from the first internal data release
• Two distinct halo populations in the solar neighborhood. III. Evidence from stellar ages and orbital parameters
• Beryllium and Alpha-Element Abundances in a Large Sample of Metal-Poor Stars
• Two distinct halo populations in the solar neighborhood. IV. Lithium abundances
• Be and O in the ultra metal-poor dwarf 2MASS J18082002-5104378: The Be-O correlation
• Stellar abundances of beryllium and CUBES
• Detecting weak beryllium lines with CUBES