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Neutron star equation of state in density dependent relativistic Hartree-Fock theory

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【Author】 SUN Bao-Yuan1 MENG Jie1,2,3,4;1) 1 (School of Physics, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China) 2 (Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China) 3 (Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China) 4 (Department of Physics, University of Stellenbosch, Stellenbosch, South Africa)

【机构】 School of Physics, and State Key Laboratory of Nuclear Physics and Technology, Peking University； Institute of Theoretical Physics, Chinese Academy of Sciences； Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator； Department of Physics, University of Stellenbosch；

【摘要】 The equation of state of neutron stars is studied in the newly developed density dependent relativistic Hartree-Fock (DDRHF) theory with the effective interaction PKO1 and applied to describe the properties of neutron stars. The results are compared with the recent observational data of compact stars and those calculated with the relativistic mean field (RMF) effective interactions. The maximum mass of neutron stars calculated with PKO1 is about 2.45 M ⊙, which consists with high pulsar mass from PSR B1516+02B recently reported. The influence of Fock terms on the cooling of neutron stars is discussed as well.更多还原

【Abstract】 The equation of state of neutron stars is studied in the newly developed density dependent relativistic Hartree-Fock (DDRHF) theory with the effective interaction PKO1 and applied to describe the properties of neutron stars. The results are compared with the recent observational data of compact stars and those calculated with the relativistic mean field (RMF) effective interactions. The maximum mass of neutron stars calculated with PKO1 is about 2.45 M ⊙, which consists with high pulsar mass from PSR B1516+02B recently reported. The influence of Fock terms on the cooling of neutron stars is discussed as well.更多还原

【关键词】 neutron stars； equation of state； relativistic Hartree-Fock theory； maximum mass；
【Key words】 neutron stars； equation of state； relativistic Hartree-Fock theory； maximum mass；

【基金】 Supported by National Natural Science Foundation of China (10435010, 10775004, 10221003);Major State Basic Research Development Program (2007CB815000)

【文献出处】中国物理C ,Chinese Physics C , 编辑部邮箱 ,2009年S1期

【分类号】P145.6
【下载频次】20

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