r-II stars in the solar neighborhood with Gaia DR3
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R-process enhanced stars with [Eu/Fe]>=+0.7 (so-called r-II stars) are believed to have formed in an extremely neutron-rich environment in which a rare astrophysical event...
[Eu/Fe]≥+0.7的快中子俘获过程（R-process）增强星（即所谓的r-II星），被认为形成于一类存在罕见天体物理事件的极端富中子环境中……
