Last Updated
：2025/12/06
Gaia Sausage
Proper noun
Japanese Meaning
(天文学) 銀河系内に存在する恒星集団で、速度空間にソーセージ状のプロットを形成する。これは、約100億年前にGaia‐Enceladus銀河との銀河合体に起因し、主に銀河のハローに存在する星々から構成されると考えられている。
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(astronomy) A stellar population within the Milky Way Galaxy that forms a sausage-shaped plot in velocity-space, which is thought to originate from a galaxy merger 10 billion years ago, with the Gaia-Enceladus galaxy, composing mostly Milky Way halo stars.
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Gaia Sausage
Recent studies show that the Gaia Sausage contains a high fraction of metal-poor stars, offering clues about the Milky Way's ancient mergers.
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Recent studies show that the Gaia Sausage contains a high fraction of metal-poor stars, offering clues about the Milky Way's ancient mergers.
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