Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Nanae Domoto"'
Autor:
Nanae Domoto, Jae-Joon Lee, Masaomi Tanaka, Ho-Gyu Lee, Wako Aoki, Miho N. Ishigaki, Shinya Wanajo, Daiji Kato, Kenta Hotokezaka
Publikováno v:
The Astrophysical Journal, Vol 956, Iss 2, p 113 (2023)
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 mainly due to the lack of experimentally accurate atomic data for heav
Externí odkaz:
https://doaj.org/article/4bec255a384f4ab49587cfa56cb17cfd
Autor:
Masaomi Tanaka, Nanae Domoto, Wako Aoki, Miho N. Ishigaki, Shinya Wanajo, Kenta Hotokezaka, Kyohei Kawaguchi, Daiji Kato, Jae-Joon Lee, Ho-Gyu Lee, Teruyuki Hirano, Takayuki Kotani, Masayuki Kuzuhara, Jun Nishikawa, Masashi Omiya, Motohide Tamura, Akitoshi Ueda
Publikováno v:
The Astrophysical Journal, Vol 953, Iss 1, p 17 (2023)
Observations of the kilonova from the neutron star merger event GW170817 opened a way to study r -process nucleosynthesis directly using neutron star mergers. It is, however, challenging to identify individual elements in kilonova spectra due to a la
Externí odkaz:
https://doaj.org/article/ca019640d22649b0890be5142bb15d80
Autor:
Smaranika Banerjee, Masaomi Tanaka, Daiji Kato, Gediminas Gaigalas, Kyohei Kawaguchi, Nanae Domoto
Publikováno v:
The astrophysical journal, Bristol : Institute of Physics Publishing, 2022, vol. 934, no. 2, art. no. 117, p. [1-13]
We investigate the effect of the presence of lanthanides (Z = 57- 71) on the kilonova at t~hours after the neutron star merger for the first time. For this purpose, we calculate the atomic structures and the opacities for selected lanthanides: Nd (Z
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c36dd7688b5f70ebea639d631d84e18
http://arxiv.org/abs/2204.06861
http://arxiv.org/abs/2204.06861
Autor:
Masaomi Tanaka, Daiji Kato, Gediminas Gaigalas, Kyohei Kawaguchi, Laima Radžiūtė, Pavel Rynkun, Smaranika Banerjee, Nanae Domoto
Publikováno v:
Proceedings of the International Astronomical Union. 16:127-134
Coalescence of binary neutron stars gives rise to kilonova, thermal emission powered by radioactive decays of newly synthesized r-process nuclei. Observational properties of kilonova are largely affected by bound-bound opacities of r-process elements
Publikováno v:
The Astrophysical Journal
The observations of GW170817/AT2017gfo have provided us with evidence that binary neutron star mergers are sites of $r$-process nucleosynthesis. However, the observed signatures in the spectra of GW170817/AT2017gfo have not been fully decoded especia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b894a3dea87183e8ae124b6194e784e
Publikováno v:
The Astrophysical Journal
Binary neutron star (NS) mergers have been expected to synthesize r-process elements and emit radioactively powered radiation, called kilonova. Although r-process nucleosynthesis was confirmed by the observations of GW170817/AT2017gfo, no trace of in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5dc32d9ecba7f7dcf435e06bbeed2759
http://arxiv.org/abs/2103.15284
http://arxiv.org/abs/2103.15284
Autor:
Tatsuki Hasegawa, Masaomi Tanaka, Nobuya Nishimura, Kyohei Kawaguchi, Sei Saito, Nanae Domoto
Publikováno v:
EPJ Web of Conferences. 260:11011
We investigate the effects of r-process elements on the electromagnetic wave emission from peculiar core-collapse supernovae. We perform a series of radiative transfer simulations based on one-dimensional hydrodynamical explosion models. Varying the