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

Abstract
HTML
Reference
Related

PDF

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

[1]

.Burbidge E M,Berbidge G R,Fowler W A et al.Rev.Mod.Phys.,1957,29:547-6502.LI Guang..Lie,LI Long.Nucl.Phys.Rev.,1999.16:201-206(in Chinese)(厉光烈,李龙.原子核物理评论,1999,16:201—206)3.ZHANG Miao..Jing,ZHAHG Bo,LI Guang..Lie.Nucl.Phys.Rev.,2002,19:321-328(in Chinese)(张妙静,张波,厉光烈.原子核物理评论,2002,19:321—328)4.Gilroy K K,Sneden C,Pilachowshi C A et al.Ap.J.,1988,327:298-3205.McWiliam A,Preston G W,Sneden C et al.Astrophys.J.,1995,109:2736-27566.McWiliam A,Preston G W,Sneden C et al.Astrophys.J.,1995,109:2757-27997.Sneden C,McWiliam A,Preston G W et al.Ap.J.,1996,467:819-8408.Cowan J J,Burris D L,Sneden C et al.Ap.J.Lett .,1995,439:51-549.Busso M,Picchio G,Gallino R et al.Ap.J.,1988,326:196-20710.Cowan J J,Sneden C,Truran J W et al.Ap.J.Lett .,1996,460:115-11811.Sneden C,Cowan J J,Lawler J E et al.ast ro..ph..030354212.ZHANG Bo,LI Ji ,ZHANG Cai..Xia et al.Ap.J.,1999,513:910-91813.ZHANG Bo,ZHANG Yan..Xia,LI Ji et al.Chin.J.Astron.Ast ro..phys.,2002,2:429- 44014.Burris D,Pilachowski C A,Armandroff T E et al.Ap.J.,2000,544:302-31915.ZHANG Miao..Jing,ZHANG Bo,LI Guang..Lie.Chin.Phys.Lett .,2003,20:962-96416.Jehin E,Magain P,Neuforge C et al.Astron.Astrophys.,1999,341:241-25517.Sneden C,Cowan J J,Ivans I I et al.Ap.J.Lett .,2000,533:139-14218.Cameron A G W.Ap.J.,2001,562:456 -46919.Wasserburg G J,QIAN Y Z.Ap.J.Let t.,2000,529:21-24

[1]	ZHAO Xian-Feng , WANG Shun-Jin , ZHANG Hua , JIA Huan-Yu . Effect of f₀(975) and φ(1020) Mesons on Neutron Star Mater. Chinese Physics C, 2007, 31(4): 345-349.
[2]	ZUO Wei , LI Ang , LUO Pei-Yan , YONG Gao-Chan . Properties of Proto-Neutron Star and Effect of Three-Body Forces. Chinese Physics C, 2006, 30(10): 956-960.
[3]	DING Wen-Bo , LIU Guang-Zhou . Condensations of K^－ and K⁰ in Neutron Star Matter. Chinese Physics C, 2006, 30(S2): 249-251.
[4]	CHEN Wei . Thermal Property of Protoneutron Star Matter. Chinese Physics C, 2006, 30(2): 118-122.
[5]	ZHU Zhao-Huan , BAN Shu-Fang , LI Jun , MENG Jie . Pesponse of the Neutron Star Properties to the Equation of State at Low Density. Chinese Physics C, 2005, 29(6): 565-569.
[6]	AN Yu-Kai , DAI Bo , MAI Zhen-Hong , CAI Jian-Wang , WU Zong-Hua . Elemental distribution at the interfaces of Ni₇₀Co₃₀/Cu magnetic multilayers by X-ray anomalous scattering. Chinese Physics C, 2005, 29(S1): 16-19.
[7]	SHEN Gang , MENG Jie , Hillhouse G . Direct URCA Process in Neutron Stars. Chinese Physics C, 2004, 28(S1): 99-101.
[8]	QIU You-Heng , DENG Li , YING Yang-Jun , XIAO Gang . Monte Carlo Simulation of Boron Neutron Capture Therapy. Chinese Physics C, 2003, 27(10): 936-942.
[9]	GUO Hua , LIU Bo , LI Xi-Guo , CHEN Yan-Jun . Kaon Condensation in Neutron Star Matter. Chinese Physics C, 2003, 27(2): 113-117.
[10]	JIA Huan-Yu , MENG Jie , ZHAO En-Guang , LI Jun , SANG Jian-Ping . Effect of Temperature on Hyperon Neutron Star. Chinese Physics C, 2003, 27(3): 200-205.
[11]	LIU Bo , GUO Hua . In-Medium Effects on Neutron Stars. Chinese Physics C, 2003, 27(8): 683-687.
[12]	ZHANG Miao-Jing , ZHANG Bo , LI Guang-Lie . Abundance Distribution in the Solar System and Slow Neutron Capture Elements in AGB Stars. Chinese Physics C, 2003, 27(11): 978-983.
[13]	ZHANG Miao-Jing , ZHANG Bo , LIU Ji-Hong , LI Guang-Lie . Abundances of Metal-Poor Stars and Slow Neutron-Capture Progress. Chinese Physics C, 2003, 27(4): 304-308.
[14]	LIU Jian-Feng , ZHAO Wei-Juan , SU Zong-Di . Study on γ-Ray Strength Function of Neutron Radiative Capture for Middle and Heavy Nuclei. Chinese Physics C, 2002, 26(12): 1254-1263.
[15]	LI Wen-Fei , 2< sup> , ZHANG Feng-Shou , CHEN Lie-Wen . Density Dependence of Proton Fraction in Neutron Stars. Chinese Physics C, 2001, 25(8): 759-764.
[16]	SUN Bao-Xi , JIA Huan-Yu , MENG Jie , ZHAO En-Guang . Neutron Star in Relativistic Mean-field Approximation. Chinese Physics C, 2000, 24(S1): 69-72.
[17]	Zhang Li , Wang Jicheng , Zhao Jinhua , Yang Yongfeng , Zheng Jiwen , Qin Zhi , Zhang Chun , Guo Tianrui . Detection of Weak γ-Activities of Neutron-Rich Isotopesin Element-Separated Sample. Chinese Physics C, 1997, 21(10): 891-896.
[18]	MU Yun-Shan , XU Hai-Shan , XIANG Zheng-Yu , LI Ye-Xiang , WANG Shi-Ming , LIU Jian-Feng . Fast Neutron Capture Cross Section of Natural Molybdenum. Chinese Physics C, 1991, 15(1): 66-70.
[19]	XIANG Zheng-Yu , XU Hai-Shan , LI Ye-Xiang , MU Yun-Shan , WANG Shi-Ming , LIU Jian-Feng . FAST NEUTRON CAPTURE CROSS SECTIONS OF FISSION PRODUCT NUCLIDE Eu. Chinese Physics C, 1989, 13(10): 938-941.
[20]	HO YU-KUN . NEUTRON CAPTURE GAMMA RAY SPECTRA AT LOW ENERGY. Chinese Physics C, 1981, 5(6): 732-740.

Access

Get Citation

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

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(3175)
PDF Downloads(557)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
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.

HTML

Reference (1)

Neutron Capture Elements in Poor-Metal Stars

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article