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
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| 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 |
| DOI | 10.1088/0253-6102/69/4/425 |
| 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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