Open AccessMagnetized rotational neutron star and the MR relations
Author(s) -
Chinatsu Watanabe,
Kota Yanase,
N. Yoshinaga
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1643/1/012067
Subject(s) - physics , neutron star , radius , rotation (mathematics) , hadron , solar mass , magnetic field , astrophysics , stars , nuclear physics , geometry , quantum mechanics , computer security , mathematics , computer science
Radii and masses of neutron stars are calculated for various EoSs using a perturbative approach. Also increased masses are calculated due to magnetic fields. Moreover, the radius of a neutron star is calculated as a function of its increased total mass by rotation. As for the EoSs, we adopt 5 hadronic EoSs in relativistic mean field (RMF) theory to calculate the mass-radius relations (MR relations). It is found that the total masses are over twice the solar mass for all 5 hadronic EoSs in the presence of magnetic fields together with rotation. Three obtained EoSs (GM1, TM2- ωρ -a and TM2- ωρ -b) are found to be in the range of the observation. Hybrid stars are calculated to have masses more than twice the solar mass in a rapid rotation for 5 EoSs.