• The Potential Well-Depth $U^{(N)}_{\Sigma}$ Constraints on the Surface Gravitational Red-shift of a Proto Neutron Star

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      https://www.ias.ac.in/article/fulltext/joaa/032/03/0391-0399

    • Keywords

       

      Surface gravitational red-shift; the relativistic mean field thoery; proto neutron star.

    • Abstract

       

      The influence of the potential well depth $U^{(N)}_{\Sigma}$ of 𝛴 in nuclear matter on the surface gravitational red-shift of a proto neutron star is examined within the framework of the relativistic mean field theory for the baryon octet system. It is found that as $U^{(N)}_{\Sigma}$ increases from -35 MeV to +35 MeV, the surface gravitational red-shift increases and the influence of the negative $U^{(N)}_{\Sigma}$ on the surface gravitational red-shift is larger than that of the positive ones. Furthermore, the 𝑀max/𝑅 and the surface gravitational red-shift corresponding to the maximum mass all increase as the $U^{(N)}_{\Sigma}$ increases, 𝑀max and 𝑅 being the maximum mass of the proto neutron star and the corresponding radius respectively.

    • Author Affiliations

       

      Xian-Feng Zhao1

      1. Department of Electronics Engineering, Chuzhou University, Chuzhou 239000, China.
    • Dates

       
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