Rotations and Abundances of Blue Horizontal-Branch Stars in Globular Cluster M15
نویسندگان
چکیده
منابع مشابه
00 02 11 9 v 1 4 F eb 2 00 0 Rotations and Abundances of Blue Horizontal - Branch Stars in Globular Cluster
High-resolution optical spectra of eighteen blue horizontal-branch (BHB) stars in the globular cluster M15 indicate that their stellar rotation rates and photospheric compositions vary strongly as a function of effective temperature. Among the cooler stars in the sample, at Teff ∼ 8500K, metal abundances are in rough agreement with the canonical cluster metallicity, and the v sin i rotations ap...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2000
ISSN: 0004-637X
DOI: 10.1086/312524