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arXiv · 2608.05582

Influence of effective mass of the relativistic mean field theory on core collapse supernovae and compact objects

Kohsuke Sumiyoshi·Hajime Togashi·Shun Furusawa·Shuying Li·Hong Shen·Ken'ichiro Nakazato·Hideyuki Suzuki
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Abstract

We study the influence of the effective mass in the relativistic mean field (RMF) theory on the properties of the central core of collapse-driven supernovae and the formation of compact objects. Influence of the effective mass has been so far studied within the non-relativistic frameworks. In order to clarify the role of the effective mass in the relativistic frameworks, which is different from non-relativistic ones, we adopt the set of equation of state (EOS) tables using the parameterizations TM1e and TM1m, which have different effective masses but with the same saturation properties, in the RMF theory. We show that choices of the effective mass in supernova matter affect both the stiffness of the EOS through pressure and the thermodynamical behavior through temperature under the RMF frameworks. We explore differences in matter evolution with neutrino emissions by performing a set of numerical simulations of the gravitational collapse and bounce of massive stars and the cooling of the proto-neutron stars. The EOS with large effective mass leads to compact proto-neutron stars and early collapse to black holes with high densities and temperatures due to the softness. It leads to high energy neutrinos in long emission from the proto-neutron star cooling and in short burst from the black hole formation.

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Kohsuke Sumiyoshi, Hajime Togashi, Shun Furusawa, Shuying Li, Hong Shen, Ken'ichiro Nakazato, Hideyuki Suzuki. 2026-08-06. Influence of effective mass of the relativistic mean field theory on core collapse supernovae and compact objects. https://arxiv.org/abs/2608.05582

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