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题名: Direct Urca Processes with Hyperons in Cooling Neutron Stars
作者: Xu, Y ;  Liu, GZ ;  Wu, YR ;  Zhu, MF ;  Yu, Z ;  Wang, HY ;  Zhao, EG
刊名: CHINESE PHYSICS LETTERS
出版日期: 2011
卷号: 28, 期号:7, 页码:79701
关键词: DOUBLE HYPERFRAGMENT ;  SUPERFLUIDITY ;  HYPERNUCLEI ;  RADIATION ;  MATTER
学科分类: Physics
通讯作者: Xu, Y (reprint author), Jilin Univ, Ctr Theoret Phys, Changchun 130012, Peoples R China.
部门归属: [Xu Yan; Liu Guang-Zhou; Wu Yao-Rui; Zhu Ming-Feng; Wang Hong-Yan] Jilin Univ, Ctr Theoret Phys, Changchun 130012, Peoples R China; [Yu Zi] Nanjing Forestry Univ, Coll Sci, Nanjing 210037, Peoples R China; [Zhao En-Guang] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要: In the relativistic mean field approximation, the relativistic energy losses of the direct Urca processes with nucleons (N-DURCA) and hyperons (Y-DURCA) are studied in the degenerate baryon matter of neutron stars. We investigate the effects of hyperon degrees of freedom and the Y-DURCA processes on the N-DURCA processes, and the total neutrino emissivity of neutron star matter. The results show that the existence of hyperons decreases the abundance of protons and leptons, and can sharply suppress the neutrino emissivity of the N-DURCA processes.
资助者: National Natural Science Foundation of China [10675024, 11075063]; National Fundamental Project for Subsidy Funds of Personnel Training [J0730311]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000293141800090
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14327
Appears in Collections:理论物理所2011年知识产出_期刊论文

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Recommended Citation:
Xu, Y,Liu, GZ,Wu, YR,et al. Direct Urca Processes with Hyperons in Cooling Neutron Stars[J]. CHINESE PHYSICS LETTERS,2011,28(7):79701.
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