Neutron Capture Elements in Poor-Metal Stars

ZHANG Miao-Jing; ZHANG Bo; LI Guang-Lie

Chinese Physics C> 2004, Vol. 28> Issue(1) : 30-36

Neutron Capture Elements in Poor-Metal Stars

College of Physics and Information Technology,Guangxi Normal University,Guilin 541004,China2 Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100039,China3 Department of Physics,Hebei Normal University,Shijiazhuang 050016,China4 Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000,China

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Abstract：
By means of the component coefficient equation and the updated data of abundances of the solar system, we calculate the element abundances of 64 poor-metal stars. The result shows that the rapid neutron capture process (r-process) is the main source of neutron capture elements in poor-metal stars. Besides, the yields of heavy neutron capture elements in stars whose metallicity is less than -2.5 may come from pure r-process. The producer of the heavy neutron capture elements may differ from that of the light.

References

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ZHANG Miao-Jing, ZHANG Bo and LI Guang-Lie. Neutron Capture Elements in Poor-Metal Stars[J]. Chinese Physics C, 2004, 28(1): 30-36.

ZHANG Miao-Jing, ZHANG Bo and LI Guang-Lie. Neutron Capture Elements in Poor-Metal Stars[J]. Chinese Physics C, 2004, 28(1): 30-36. shu

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Received: 2003-05-09
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Neutron Capture Elements in Poor-Metal Stars

Corresponding author: ZHANG Miao-Jing,

College of Physics and Information Technology,Guangxi Normal University,Guilin 541004,China2 Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100039,China3 Department of Physics,Hebei Normal University,Shijiazhuang 050016,China4 Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000,China

Received Date: 2003-05-09

Accepted Date: 1900-01-01

Available Online: 2004-01-05

Abstract: By means of the component coefficient equation and the updated data of abundances of the solar system, we calculate the element abundances of 64 poor-metal stars. The result shows that the rapid neutron capture process (r-process) is the main source of neutron capture elements in poor-metal stars. Besides, the yields of heavy neutron capture elements in stars whose metallicity is less than -2.5 may come from pure r-process. The producer of the heavy neutron capture elements may differ from that of the light.

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Neutron Capture Elements in Poor-Metal Stars

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