Starbursts, blue stragglers, and binary stars in local superclusters and groups. II - the old disk and halo populations
Starbursts, blue stragglers, and binary stars in local superclusters and groups. II - the old disk and halo populations
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DOI:
10.1086/114993
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发表时间:
1989-02
期刊:
影响因子:
--
通讯作者:
O. Eggen;I. Iben
中科院分区:
文献类型:
--
作者:
O. Eggen;I. Iben
A study of the distribution in the HR diagram of stars in several old-disk population aggregates and in several halo-population aggregates indicates that the blue straggler phenomenon is ubiquitous. In all the cases considered, several stars are found to lie far from the locus defined by a semiempirical isochrone that best fits the distribution of the bulk of the stars in the aggregate. The results support the starburst interpretation of blue stragglers in young-disk aggregates. 162 references.