Supernova neutrinos in the proto-neutron star cooling phase and nuclear matter

Ken'Ichiro Nakazato, Hideyuki Suzuki

研究成果: ジャーナルへの寄稿会議記事査読


A proto-neutron star (PNS) is a newly formed compact object in a core collapse supernova. Using a series of phenomenological equations of state (EOS), we have systematically investigated the neutrino emission from the cooling phase of a PNS. The numerical code utilized in this study follows a quasi-static evolution of a PNS solving the general-relativistic stellar structure with neutrino diffusion. As a result, the cooling timescale evaluated from the neutrino light curve is found to be long for the EOS models with small neutron star radius and large effective mass of nucleons. It implies that extracting properties of a PNS (such as mass and radius) and the nuclear EOS is possible by a future supernova neutrino observation.

ジャーナルJournal of Physics: Conference Series
出版ステータス出版済み - 3月 20 2020
イベント16th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2019 - Toyama, 日本
継続期間: 9月 9 20199月 13 2019

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)


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