activity
20152026
most citedA new possibility of the fast neutrino-flavor conversion in the pre-shock region of core-collapse supernova

104 citations · 385 across the 15 of their papers we have counts for

collaborators

15 papers

astro-ph.HE2026

Dynamic Competition of Fast and Collisional Neutrino Flavor Instabilities with Collisional Damping in Spatially Inhomogeneous Systems

Shota Takahashi, Hiroki Nagakura, Masamichi Zaizen +2

Neutrino flavor evolution in dense astrophysical environments such as core-collapse supernova (CCSN) is influenced by collective effects. While the Fast Flavor Instability (FFI) an…

astro-ph.HE2026

Comprehensive neutrino light curves and spectra: from pre-supernova evolution to early supernova phase

Chinami Kato, Hiroki Nagakura, Akira Ito +4

We present the first systematic study of neutrino emissions from massive stars, continuously tracking the late evolutionary stages through the early core-collapse supernova phase.…

astro-ph.HE2024

Inspecting neutrino flavor instabilities during proto-neutron star cooling phase in supernova: I. Spherically symmetric model

Masamichi Zaizen, Sherwood Richers, Hiroki Nagakura +2

In the standard model of core-collapse supernova (CCSN), all neutrinos are assumed to be in pure flavor eigenstates in CCSN cores, but the assumption becomes invalid if neutrino di…

astro-ph.HE2023★ 2 cited

Collisional flavor swap with neutrino self-interactions

Chinami Kato, Hiroki Nagakura, Lucas Johns

Neutrinos play pivotal roles in determining fluid dynamics, nucleosynthesis, and their observables in core-collapse supernova (CCSN) and binary neutron star merger (BNSM). In this…

astro-ph.HE2023★ 15 cited

Flavor conversions with energy-dependent neutrino emission and absorption

Chinami Kato, Hiroki Nagakura, Masamichi Zaizen

Fast neutrino flavor conversions (FFCs) and collisional flavor instabilities (CFIs) potentially affect the dynamics of core-collapse supernovae (CCSNe) and binary neutron star merg…

astro-ph.HE2022★ 32 cited

Effects of energy-dependent scatterings on fast neutrino flavor conversions

Chinami Kato, Hiroki Nagakura

Neutrino self-interactions in a dense neutrino gas can induce collective neutrino flavor conversions. Fast neutrino flavor conversions (FFCs), one of the collective neutrino conver…