Thermal impacts on the properties of nuclear matter and young neutron star

Kumar, Ankit and Das, H. C. and Bhuyan, M. and Patra, S. K. (2021) Thermal impacts on the properties of nuclear matter and young neutron star. Nuclear Physics A, 1015. ISSN 0375-9474, DOI

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We present a methodical study of the thermal and nuclear properties for the hot nuclear matter using relativistic-mean field theory. We examine the effects of temperature on the binding energy, pressure, thermal index, symmetry energy, and its derivative for the symmetric nuclear matter using temperature-dependent relativistic mean-field formalism for the well-known G2* and recently developed IOPB-I parameter sets. The critical temperature for the liquid-gas phase transition in an asymmetric nuclear matter system has also been calculated and collated with the experimentally available data. We investigate the approach of the thermal index as a function of nucleon density in the wake of relativistic and non-relativistic formalism. The computation of neutrino emissivity through the direct Urca process for the supernovae remnants has also been performed, which manifests some exciting results about the thermal stabilization and evolution of the newly born proto-neutron star. The central temperature and the maximum mass of the proto-neutron star have also been calculated for different entropy values. (C) 2021 Elsevier B.V. All rights reserved.

Item Type: Article
Funders: FOSTECT Project FOSTECT.2019B.04, Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) Fundacao Amazonia de Amparo a Estudos e Pesquisas (FAPESPA) (2017/05660-0)
Uncontrolled Keywords: Neutron star; Equation of state; Symmetry energy
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 15 Apr 2022 07:38
Last Modified: 15 Apr 2022 07:38

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