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Effects of the symmetry energy on strongly-magnetized neutron stars in the density-dependent RMF model

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Abstract

We investigate the structure of neutron stars with strong magnetic fields by using a density-dependent relativistic mean field model. The coupling constant between nucleons and the rho meson in the model is obtained by using the polytropic formula for the symmetry energy in the neutron star. With the density-dependent coupling constant, the effects of the symmetry energy on strongly-magnetized neutron stars are considered in detail for particle fractions and the equation of state. The consequent changes in the masses and the radii of the neutron star are discussed by using the roles of the symmetry energy in the neutron star.

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Authors and Affiliations

  1. General Education Curriculum Center, Hanyang University, Seoul, 133-791, Korea

    Chung-Yeol Ryu

  2. Department of Physics, Soongsil University, Seoul, 156-743, Korea

    Myung-Ki Cheoun

Authors
  1. Chung-Yeol Ryu
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  2. Myung-Ki Cheoun
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Correspondence to Myung-Ki Cheoun.

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Ryu, CY., Cheoun, MK. Effects of the symmetry energy on strongly-magnetized neutron stars in the density-dependent RMF model. Journal of the Korean Physical Society 63, 168–173 (2013). https://doi.org/10.3938/jkps.63.168

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  • DOI: https://doi.org/10.3938/jkps.63.168

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