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Radioactively Powered Emission from Black Hole-Neutron Star Mergers
Masaomi Tanaka, Kenta Hotokezaka, Koutarou Kyutoku +4
Detection of electromagnetic counterparts of gravitational wave (GW) sources is important to unveil the nature of compact binary coalescences. We perform three-dimensional, time-de…
Progenitor models of the electromagnetic transient associated with the short GRB 130603B
Kenta Hotokezaka, Koutarou Kyutoku, Masaomi Tanaka +4
An electromagnetic transient powered by the radioactive decay of r-process elements, a so-called kilonova/macronova, is one of the possible observable consequences of compact binar…
Electron-capture supernovae as sources of 60Fe
Shinya Wanajo, Hans-Thomas Janka, Bernhard Mueller
We investigate the nucleosynthesis of the radionuclide 60Fe in electron-capture supernovae (ECSNe). The nucleosynthetic results are based on a self-consistent, two-dimensional simu…
The r-process in proto-neutron-star wind revisited
Shinya Wanajo
We examine the r-process in the neutrino-driven proto-neutron-star (PNS) wind of core-collapse supernovae in light of the recent findings of massive neutron stars in binaries as we…
Electron-capture supernovae as origin of 48Ca
Shinya Wanajo, Hans-Thomas Janka, Bernhard Mueller
We report that electron-capture supernovae (ECSNe), arising from collapsing oxygen-neon-magnesium cores, are a possible source of 48Ca, whose origin has remained a long-standing pu…