Constraints the properties of neutron star matter from the mass of neutron star PSR J1614-2230 |
| |
| Authors: | Xian-Feng Zhao Huan-Yu Jia |
| |
| Institution: | 1. College of Mechanical and Electronic Engineering, Chuzhou University, Chuzhou, 239000, China
2. Institute for Modern Physics, Southwest Jiaotong University, Chengdu, 610031, China
|
| |
| Abstract: | The constraints on the properties of neutron star matter from the mass of neutron star PSR J1614-2230 are examined in the framework of the relativistic mean field theory. We find that there are little differences between the σ potentials of large mass neutron star and those of canonnical mass neutron star. For potentials of ω, ρ, neutrons and electrons, the values corresponding to the large mass neutron star are larger than those to the canonnical mass neutron star as the baryon number density is more than a certain value. We also find that for the relative particle number density of electrons, muons, neutrons and protons and the pressure of the neutron star, the values corresponding to the large mass neutron star are far larger than those to the canonnical mass neutron star. For the relative particle number density of hyperons Λ, Σ?, Σ0, Σ+ and Ξ?, the values corresponding to the large mass neutron star are far smaller than those to the canonnical mass neutron star. These mean that the larger mass of neutron star is more advantageous to the production of protons but is not advantageous to the production of hyperons. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
