268 citations · 6.4k across the 137 of their papers we have counts for
137 papers
Leptonic and semi-leptonic neutrino interactions with muons in the proto-neutron star cooling
Ken'ichi Sugiura, Shun Furusawa, Kohsuke Sumiyoshi +1
It is known that muons are scarce just after the birth of a proto-neutron star via a supernova explosion but get more abundant as the proto-neutron star cools via neutrino emission…
A Lagrangian construction of rotating stars
Misa Ogata, Hirotada Okawa, Kotaro Fujisawa +3
We present a new formulation for numerically obtaining axisymmetric equilibrium structures of rotating stars in two spatial dimensions. With a view to apply it to the secular evolu…
Protoneutron Star Convection Simulated with a New General Relativistic Boltzmann Neutrino Radiation-Hydrodynamics Code
Ryuichiro Akaho, Akira Harada, Hiroki Nagakura +6
We investigate the protoneutron star (PNS) convection using our newly developed general relativistic Boltzmann neutrino radiation-hydrodynamics code. This is a pilot study for more…
A novel formulation for the evolution of relativistic rotating stars
Hirotada Okawa, Kotaro Fujisawa, Nobutoshi Yasutake +3
We present a new formulation to construct numerically equilibrium configurations of rotating stars in general relativity. Having in mind the application to their quasi static evolu…
Singularity-Avoiding Multi-Dimensional Root-Finder
Hirotada Okawa, Kotaro Fujisawa, Yu Yamamoto +3
We proposed in this paper a new method, which we named the W4 method, to solve nonlinear equation systems. It may be regarded as an extension of the Newton-Raphson~(NR) method to b…
Gravitational wave signals in the deci-Hz range from neutrinos during the proto-neutron star cooling phase
Lei Fu, Shoichi Yamada
We investigate the gravitational waves (GWs) at low frequencies produced by neutrinos that are emitted anisotropically from the proto-neutron star (PNS) during its cooling phase th…