Open AccessEnergy Momentum Squared Gravity in Doneva-Jazadjiev anisotropic pressure model of non-rotating neutron stars
Author(s) -
Hanifa,
M. D. Danarianto,
A. Sulaksono
Publication year - 2022
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 - 10.1088/1742-6596/2214/1/012003
Subject(s) - neutron star , physics , equation of state , radius , anisotropy , stars , momentum (technical analysis) , nuclear physics , classical mechanics , quantum electrodynamics , astrophysics , quantum mechanics , computer security , computer science , finance , economics
We implement the Doneva-Yazadjiev (DY) anisotropic model of neutron stars into Energy Momentum Squared Gravity (EMSG) theory. We have shown that the Tolmann-Oppenheimer-Volkoff (TOV) equation within this model can be expressed in the terms of effective pressure and energy density. The structure of neutron stars (NS) is then calculated by using Basic Standard Parameter equation of state with hyperons in the center. We found that the combined model is able to adjust the mass-radius relation of the NS. We also found that this model could affect boundary limit of EMSG parameter, α , in the term of stability.