Cosmic ray production of 6Li by structure formation shocks in the early Galaxy

被引:2
|
作者
Inoue, S
Suzuki, TK
机构
[1] Max Planck Inst Astrophys, D-85741 Garching, Germany
[2] Univ Tokyo, Fac Sci, Dept Astron, Bunkyo Ku, Tokyo 1130033, Japan
[3] Natl Astron Observ, Mitaka, Tokyo 1888588, Japan
关键词
D O I
10.1016/S0375-9474(03)00681-X
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
We discuss the production of the element Li-6 in the early Galaxy by cosmic rays accelerated at structure formation shocks, driven by the hierarchical merging of sub-Galactic clumps during Galaxy formation. The salient features of this scenario are discussed and compared with observations of Li-6 in metal-poor halo stars, including a recent Subaru HDS result on the star HD140283. Some unique predictions of the model are clearly testable by future observations and may also provide important insight into how the Galaxy formed.
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页码:69C / 72C
页数:4
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