Can the Massive Neutron Star PSR J0348+0432 be a Hyperon Star?
Abstract
Whether the massive neutron star PSR J0348+0432 can change into a hyperon star is studied in the framework of the relative mean field theory by choosing the suitable hyperon coupling constants. We find that whether the mesons $\sigma^{*}$ and $\phi$ being considered or not, the neutron star PSR J0348+0432 all can change into a hyperon star and the hyperon star transition density are the same for the two cases. We also find that the canonical mass neutron star also can change into a hyperon star in a minor hyperon star transition density as the mesons $\sigma^{*}$ and $\phi$ are not considered. Our results confirms some of recent conclusions.
- Publication:
-
Acta Physica Polonica B
- Pub Date:
- 2017
- DOI:
- 10.5506/APhysPolB.48.171
- arXiv:
- arXiv:1712.08870
- Bibcode:
- 2017AcPPB..48..171Z
- Keywords:
-
- Nuclear Theory
- E-Print:
- 11 pages,7 figures, This paper was published in Acta Physica Polonica B, 2017, 48(2): 171-181