A neutron star with a strange quark star-like mass-radius relation

We study the structure of spherically symmetric and static objects in the presence of a nonminimally coupled scalar field having a potential of the form V(ϕ)=−μ2ϕ2∕2+λϕ4∕4. We numerically solve equations of the system using two different realistic equations of state for neutron matter and give the m...

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Bibliographic Details
Published inPHYSICS OF THE DARK UNIVERSE Vol. 28; p. 100488
Main Authors Savaş Arapoğlu, A., Emrah Yükselci, A.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.05.2020
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Summary:We study the structure of spherically symmetric and static objects in the presence of a nonminimally coupled scalar field having a potential of the form V(ϕ)=−μ2ϕ2∕2+λϕ4∕4. We numerically solve equations of the system using two different realistic equations of state for neutron matter and give the mass-radius relations as well as the radial profiles of the scalar field, densities and the mass function for a sample configuration. We show that a specific solution type encountered in such systems causes characteristic neutron star mass-radius relations to turn into the ones belonging to strange quark stars.
ISSN:2212-6864
2212-6864
DOI:10.1016/j.dark.2020.100488