195 citations · 1.1k across the 22 of their papers we have counts for
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Influence of effective mass of the relativistic mean field theory on core collapse supernovae and compact objects
Kohsuke Sumiyoshi, Hajime Togashi, Shun Furusawa +4
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 co…
Role of symmetry energy at subnuclear densities in protoneutron star crusts
Ken'ichiro Nakazato, Hajime Togashi, Kohsuke Sumiyoshi +1
The impact of matter properties at subnuclear densities on the evolution of protoneutron stars is investigated. Several models of nuclear equation of state (EOS) are constructed wi…
Effects of nuclear matter and composition in core-collapse supernovae and long-term proto-neutron star cooling
Kohsuke Sumiyoshi, Shun Furusawa, Hiroki Nagakura +4
We study the influence of hot and dense matter in core-collapse supernovae by adopting up-to-date nuclear equation of state (EOS) based on the microscopic nuclear many-body framewo…
Merger and post-merger of binary neutron stars with a quark-hadron crossover equation of state
Yong-Jia Huang, Luca Baiotti, Toru Kojo +6
Fully general-relativistic binary-neutron-star (BNS) merger simulations with quark-hadron crossover (QHC) equations of state (EOSs) are studied for the first time. In contrast to E…
Universal relation for supernova gravitational waves
Hajime Sotani, Tomoya Takiwaki, Hajime Togashi
Using the numerical simulation data for two-dimensional core-collapse supernova, we examine the protoneutron star (PNS) asteroseismology with the relativistic Cowling approximation…
Numerical Study of Stellar Core Collapse and Neutrino Emission Using the Nuclear Equation of State Obtained by the Variational Method
Ken'ichiro Nakazato, Kohsuke Sumiyoshi, Hajime Togashi
Core-collapse simulations of massive stars are performed using the equation of state (EOS) based on the microscopic variational calculation with realistic nuclear forces. The proge…
Phenomenological QCD equations of state for neutron star dynamics: Nuclear-2SC continuity and evolving effective couplings
Toru Kojo, Defu Hou, Jude Okafor +1
We delineate the quark-hadron continuity by constructing QCD equations of state for neutron star dynamics, covering the wide range of charge chemical potential () and temperat…
New Neutron Star Equation of State with Quark-Hadron Crossover
Gordon Baym, Shun Furusawa, Tetsuo Hatsuda +2
We present a much improved equation of state for neutron star matter, QHC19, with a smooth crossover from the hadronic regime at lower densities to the quark regime at higher densi…
Comparing treatments of weak reactions with nuclei in simulations of core-collapse supernovae
Hiroki Nagakura, Shun Furusawa, Hajime Togashi +3
We perform an extensive study of the influence of nuclear weak interactions on core-collapse supernovae (CCSNe), paying particular attention to consistency between nuclear abundanc…
Heavy Nuclei as Thermal Insulation for Proto-Neutron Stars
Ken'ichiro Nakazato, Hideyuki Suzuki, Hajime Togashi
A proto-neutron star (PNS) is a newly formed compact object in a core collapse supernova. In this Letter, the neutrino emission from the cooling process of a PNS is investigated us…
A new equation of state for core-collapse supernovae based on realistic nuclear forces and including a full nuclear ensemble
S. Furusawa, H. Togashi, H. Nagakura +4
We have constructed a nuclear equation of state (EOS) that includes a full nuclear ensemble for use in core-collapse supernova simulations. It is based on the EOS for uniform nucle…