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| Content Provider | Springer Nature Link |
|---|---|
| Author | Zhao, Xian Feng |
| Copyright Year | 2014 |
| Abstract | The effect of the f 0(975) and φ(1020) mesons on the properties of the massive neutron star PSR J0348+0432 is examined in the framework of the relativistic mean-field theory by choosing the suitable hyperon coupling constants. It is found that, compared with that without the f 0(975) and φ(1020) mesons, the radius of the neutron star PSR J0348+0432 increases from R = 12.072 km to R = 12.08 km (i.e. by 0.07%), the central energy density ɛ c decreases from 5.6695 fm−4 to 5.6492 fm−4 (i.e. by 0.36%), the central pressure decreases from 1.585 fm−4 to 1.58 fm−4 (i.e. by 0.32%), the moment of inertia increases from 1.4592 × 1045 g · cm2 to 1.4615 × 1045 g · cm2 (i.e. by 0.16%) and the surface gravitational redshift decreases from z = 0.4026 to z = 0.4022 (i.e. by 0.1%). Our results show that the effect of the f 0(975) and φ(1020) mesons on the properties of the massive neutron star PSR J0348+0432 is very small (i.e. no more than 0.5%) and therefore they do not play a major role. |
| Starting Page | 1 |
| Ending Page | 6 |
| Page Count | 6 |
| File Format | |
| ISSN | 14346001 |
| Journal | The European Physical Journal A - Hadrons and Nuclei |
| Volume Number | 50 |
| Issue Number | 5 |
| e-ISSN | 1434601X |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2014-05-02 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Nuclear Physics, Heavy Ions, Hadrons Particle and Nuclear Physics Nuclear Fusion |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nuclear and High Energy Physics |
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