Cepheids with Giant Companions. II. Spectroscopic Confirmation of Nine New Double-Lined Binary Systems Composed of Two Cepheids

Bogumil Pilecki,Ian B. Thompson,Felipe Espinoza-Arancibia,Gergely Hajdu,Wolfgang Gieren,Monica Taormina,Grzegorz Pietrzynski,Weronika Narloch,Giuseppe Bono,Alexandre Gallenne,Pierre Kervella,Piotr Wielgorski,Bartlomiej Zgirski,Dariusz Graczyk,Paulina Karczmarek,Nancy R. Evans

ASTRONOMY & ASTROPHYSICS（2024）

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关键词
binaries: spectroscopic,stars: evolution,stars: oscillations,stars: variables: Cepheids
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