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NLTE Spectra of Kilonovae
Quentin Pognan, Jon Grumer, Anders Jerkstrand +1
The electromagnetic transient following a binary neutron star merger is known as a kilonova (KN). Owing to rapid expansion velocities and small ejecta masses, KNe rapidly transitio…
Transition probabilities of near-infrared Ce III lines from stellar spectra: applications to kilonovae
Nanae Domoto, Jae-Joon Lee, Masaomi Tanaka +6
Kilonova spectra provide us with information of r-process nucleosynthesis in neutron star mergers. However, it is still challenging to identify individual elements in the spectra m…
Kilonovae of binary neutron star mergers leading to short-lived remnant neutron star formation
Kyohei Kawaguchi, Sho Fujibayashi, Nanae Domoto +3
We study kilonova emission from binary neutron star (BNS) mergers for the case that a remnant massive neutron star (MNS) forms and collapses to a black hole within ms after th…
Cerium features in kilonova near-infrared spectra: implication from a chemically peculiar star
Masaomi Tanaka, Nanae Domoto, Wako Aoki +14
Observations of the kilonova from a neutron star merger event GW170817 opened a way to directly study r-process nucleosynthesis by neutron star mergers. It is, however, challenging…
Nucleosynthesis in neutrino-heated ejecta and neutrino-driven winds of core-collapse supernovae; neutrino-induced nucleosynthesis
Shinya Wanajo
The innermost ejecta of core-collapse supernovae are considered to be the sources of some iron-group and heavier nuclei. The ejecta are predominantly driven by neutrino heating, pr…