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Cepheids with Giant Companions. I. Revealing a Numerous Population of Double-lined Binary Cepheids* (dagger)

Pilecki, B; Pietrzynski, G; Anderson, RI; Gieren, W; Taormina, M; Narloch, W; Evans, NR; Storm, J

Pilecki, B (corresponding author), Polish Acad Sci, Ctr Astron Mikolaja Kopernika, Bartycka 18, PL-00716 Warsaw, Poland.

ASTROPHYSICAL JOURNAL, 2021; 910 (2):

Abstract

Masses of classical Cepheids of 3-11 M are predicted by theory but those measured clump between 3.6-5 M. As a result, their mass-luminosity relation i......

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