Massive Neutron Stars with Antikaon Condensates in a Density Dependent Hadron Field Theory

Prasanta Char; Sarmistha Banik

doi:10.1103/PhysRevC.90.015801

Massive Neutron Stars with Antikaon Condensates in a Density Dependent Hadron Field Theory

High Energy Astrophysical Phenomena 2014-07-11 v1 Nuclear Theory

Authors: Prasanta Char , Sarmistha Banik

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Abstract

The measurement of $1.97 \pm 0.04 M_{solar}$ for PSR J1614-2230 and $2.01 \pm 0.04M_{solar}$ for PSR J0348+0432 puts a strong constraint on the neutron star equation of state and its exotic composition at higher densities. In this paper, we investigate the possibility of exotic equation of state within the observational mass constraint of $2M_{solar}$ in the framework of relativistic mean field model with density-dependent couplings. We particularly study the effect of antikaon condensates in the presence of hyperons on the mass-radius relationship of the neutron star.

Keywords

neutron stars antikaon condensates density dependent hadron field theory equation of state hyperons mass-radius relationship relativistic mean field model

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@article{arxiv.1406.4961,
  title  = {Massive Neutron Stars with Antikaon Condensates in a Density Dependent Hadron Field Theory},
  author = {Prasanta Char and Sarmistha Banik},
  journal= {arXiv preprint arXiv:1406.4961},
  year   = {2014}
}

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6 figures, submitted to Phy. Rev. C

Massive Neutron Stars with Antikaon Condensates in a Density Dependent Hadron Field Theory

Abstract

Keywords

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