Far-UV spectroscopy of two hot subdwarfs reveals extreme heavy-element enrichments with patterns matching i-process nucleosynthesis, indicating self-enrichment rather than diffusion.
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Planar very metal-poor stars exhibit chemical homogeneity and dwarf-galaxy-like abundance ratios, supporting origin from one ancient accreted system tentatively called Loki.
citing papers explorer
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Evidence for neutron capture in heavy-metal hot subdwarfs: Far-UV spectroscopy of EC22536-5304 and LSIV-14 116
Far-UV spectroscopy of two hot subdwarfs reveals extreme heavy-element enrichments with patterns matching i-process nucleosynthesis, indicating self-enrichment rather than diffusion.
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An ancient system hidden in the Galactic plane?
Planar very metal-poor stars exhibit chemical homogeneity and dwarf-galaxy-like abundance ratios, supporting origin from one ancient accreted system tentatively called Loki.