中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Direct Urca Processes Involving Proton S-1(0) Superfluidity in Neutron Star Cooling

文献类型:期刊论文

作者Huang, XL; Xu, Y; Yu, Z4; Zhang, XJ; Fan, CB; Liu, GZ; Zhao, EG; Liu, CZ
刊名COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期2018
卷号69期号:4页码:425-433
关键词PROCESSES INVOLVING HYPERONS NUCLEAR-MATTER X-RAY MAGNETIC-FIELDS PULSAR EMISSION CORES
ISSN号0253-6102
DOI10.1088/0253-6102/69/4/425
英文摘要A detailed description of the baryon direct Urca processes A: n -> p + e + (v) over bar (e), B: Lambda -> p + e + (v) over bar (e), and C: Xi(-) -> Lambda + e + (v) over bar (e), related to the neutron star cooling is given in the relativistic mean field approximation. The contributions of the reactions B and C on the neutrino luminosity are calculated by means of the relativistic expressions of the neutrino energy losses. Our results show that the total neutrino luminosities of the reactions A, B and C within the mass range (1.603-2.067) M-circle dot ((1.515-1.840) M-circle dot for TM1 model) for GM1 model are larger than the corresponding values for neutron star without hyperons. Furthermore, although the neutrino emissivity of the reaction A is suppressed with the appearance of the proton S-1(0) superfluid, the contribution of the reactions B and C can still quicken a massive neutron star cooling. In particular, the reaction C in PSR J1614-2230 and J0348+0432 is not suppressed by the proton S-1(0) superfluid due to the higher threshold density of the reaction C, which will further speed up the two pulsars cooling.
学科主题Physics
语种英语
源URL[http://ir.itp.ac.cn/handle/311006/22928]  
专题理论物理研究所_理论物理所1978-2010年知识产出
作者单位1.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
2.Jilin Univ, Ctr Theoret Phys, Changchun 130023, Jilin, Peoples R China
3.Nanjing Forestry Univ, Coll Sci, Nanjing 210037, Jiangsu, Peoples R China
4.Chinese Acad Sci, Natl Astron Observ, Changchun Observ, Changchun 130117, Jilin, Peoples R China
推荐引用方式
GB/T 7714
Huang, XL,Xu, Y,Yu, Z,et al. Direct Urca Processes Involving Proton S-1(0) Superfluidity in Neutron Star Cooling[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2018,69(4):425-433.
APA Huang, XL.,Xu, Y.,Yu, Z.,Zhang, XJ.,Fan, CB.,...&Liu, CZ.(2018).Direct Urca Processes Involving Proton S-1(0) Superfluidity in Neutron Star Cooling.COMMUNICATIONS IN THEORETICAL PHYSICS,69(4),425-433.
MLA Huang, XL,et al."Direct Urca Processes Involving Proton S-1(0) Superfluidity in Neutron Star Cooling".COMMUNICATIONS IN THEORETICAL PHYSICS 69.4(2018):425-433.

入库方式: OAI收割

来源:理论物理研究所

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