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Failed supernova simulations beyond black hole formation
Takami Kuroda, Masaru Shibata
We present an axisymmetric failed supernova simulation beyond black hole formation, for the first time with numerical relativity and two-moment multi energy neutrino transport. To…
Synthetic radio images of structured GRB and kilonova afterglows
Vsevolod Nedora, Tim Dietrich, Masaru Shibata
In this paper, we compute and analyze synthetic radio images of gamma-ray bursts and kilonova afterglows. For modeling the former, we consider GRB170817A-inspired set of parameters…
Spontaneous Scalarization as a New Core-Collapse Supernova Mechanism and its Multi-Messenger Signals
Takami Kuroda, Masaru Shibata
We perform multi-dimensional core-collapse supernova (CCSN) simulations in a massive scalar-tensor theory for the first time with a realistic equation of state and multi-energy neu…
Numerical-relativity simulation for tidal disruption of white dwarfs by a supermassive black hole
Alan Tsz Lok Lam, Masaru Shibata, Kenta Kiuchi
We study tidal disruption of white dwarfs in elliptic orbits with the eccenticity of -- by a non-spinning supermassive black hole of mass in…
Actinide-boosting r Process in Black Hole-Neutron Star Merger Ejecta
Shinya Wanajo, Sho Fujibayashi, Kota Hayashi +3
We examine nucleosynthesis in the ejecta of black hole-neutron star mergers based on the results of long-term neutrino-radiation-magnetohydrodynamics simulations for the first time…
Collapse of rotating massive stars leading to black hole formation and energetic supernovae
Sho Fujibayashi, Yuichiro Sekiguchi, Masaru Shibata +1
We explore a possible scenario of the explosion as a result of core collapses of rotating massive stars that leave a black hole by performing a radiation-viscous-hydrodynamics simu…