Influence of the weakly interacting light U boson on the properties of massive protoneutron stars
文献类型：期刊论文
| 作者 | Hong, Bin; Jia, Huan-Yu; Mu, Xue-Ling; Zhou, Xia |
| 刊名 | CHINESE PHYSICS C
 |
| 出版日期 | 2016-06-01 |
| 卷号 | 40页码:39-46 |
| 关键词 | massive protoneutron star relativistic mean field theory U bosons equation of state |
| ISSN号 | 1674-1137 |
| DOI | 10.1088/1674-1137/40/6/065101 |
| 英文摘要 | Considering the octet baryons in relativistic mean field theory and selecting entropy per baryon S=1, we calculate and discuss the influence of U bosons on the equation of state, mass-radius, moment of inertia and gravitational redshift of massive protoneutron stars (PNSs). The effective coupling constant g(U) of U bosons and nucleons is selected from 0 to 70 GeV-2. The results indicate that U bosons will stiffen the equation of state (EOS). The influence of U bosons on the pressure is more obvious at low density than high density, while the influence of U bosons on the energy density is more obvious at high density than low density. The U bosons play a significant role in increasing the maximum mass and radius of PNS. When the value of g(U) changes from 0 to 70 GeV-2, the maximum mass of a massive PNS increases from 2.11M(circle dot) to 2.58M(circle dot) and the radius of a PNS corresponding to PSR J0348+0432 increases from 13.71 km to 24.35 km. The U bosons will increase the moment of inertia and decrease the gravitational redshift of a PNS. For the PNS of the massive PSR J0348+0432, the radius and moment of inertia vary directly with g(U), and the gravitational redshift varies approximately inversely with g(U). |
| WOS关键词 | PULSAR PSR J1614-2230 ; NEUTRON-STARS ; HYPERNUCLEI ; POTENTIALS ; LAMBDA |
| 资助项目 | National Natural Science Foundation of China[11175147] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000377558800006 |
| 出版者 | CHINESE PHYSICAL SOC |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://119.78.100.186/handle/113462/42785]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Jia, Huan-Yu |
| 作者单位 | Southwest Jiaotong Univ, Inst Modern Phys, Chengdu 610031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hong, Bin,Jia, Huan-Yu,Mu, Xue-Ling,et al. Influence of the weakly interacting light U boson on the properties of massive protoneutron stars[J]. CHINESE PHYSICS C,2016,40:39-46. |
| APA | Hong, Bin,Jia, Huan-Yu,Mu, Xue-Ling,&Zhou, Xia.(2016).Influence of the weakly interacting light U boson on the properties of massive protoneutron stars.CHINESE PHYSICS C,40,39-46. |
| MLA | Hong, Bin,et al."Influence of the weakly interacting light U boson on the properties of massive protoneutron stars".CHINESE PHYSICS C 40(2016):39-46. |
入库方式： OAI收割
来源：近代物理研究所
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