Neutron star core-crust transition and the crustal moment of inertia in the nonlinear relativistic Hartree approximation* * Supported in part by the National Natural Science Foundation of China (11775049, 12375112)
Niu Li, Si-Na Wei, Rong-Yao Yang, Jing Ye, Wei-Zhou Jiang
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引用次数: 0
Abstract
We investigate the effects of the σ meson mass (), symmetry energy, and slope of the symmetry energy on the neutron star core-crust transition density and the crustal moment of inertia () in the nonlinear relativistic Hartree approach (RHA), which includes vacuum polarization. Although the core-crust transition density (), pressure (), and neutron star radius (R), which are all dependent on the symmetry energy, contribute to determining , we find that changing only the slope of symmetry energy within a reasonable range is not sufficient to reach % to achieve the large glitches of the Vela pulsar. However, since all three factors (, , and R) increase with the increase in through scalar vacuum polarization, adjusting can easily achieve %.
期刊介绍:
Chinese Physics C covers the latest developments and achievements in the theory, experiment and applications of:
Particle physics;
Nuclear physics;
Particle and nuclear astrophysics;
Cosmology;
Accelerator physics.
The journal publishes original research papers, letters and reviews. The Letters section covers short reports on the latest important scientific results, published as quickly as possible. Such breakthrough research articles are a high priority for publication.
The Editorial Board is composed of about fifty distinguished physicists, who are responsible for the review of submitted papers and who ensure the scientific quality of the journal.
The journal has been awarded the Chinese Academy of Sciences ‘Excellent Journal’ award multiple times, and is recognized as one of China''s top one hundred key scientific periodicals by the General Administration of News and Publications.