Beryllium abundance in turn-off stars of NGC 6752
نویسندگان
چکیده
منابع مشابه
Beryllium abundance in turn-off stars of NGC 6752
Aims. To measure the beryllium abundance in two TO stars of the Globular Cluster NGC 6752, one oxygen rich and sodium poor, the other presumably oxygen poor and sodium rich. Be abundances in these stars are used to put on firmer grounds the hypothesis of Be as cosmochronometer and to investigate the formation of Globular Clusters. Methods. We present near UV spectra with resolution R∼ 45000 obt...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2007
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20066260