Zobrazeno 1 - 10
of 152
pro vyhledávání: '"Motohiko Kusakabe"'
Autor:
Zhenyu He, Toshitaka Kajino, Motohiko Kusakabe, Shan-Gui Zhou, Hiroyuki Koura, Satoshi Chiba, Haining Li, Yangming Lin
Publikováno v:
The Astrophysical Journal Letters, Vol 966, Iss 2, p L37 (2024)
The slow and intermediate neutron-capture processes, s - and i -processes, are believed to occur in asymptotic giant branch stars to provide half of the heavy atomic nuclei with A ≥ 90. We suggest a possibility that certain types of outflows found
Externí odkaz:
https://doaj.org/article/36500d780d134d1a9b907bb291d92c4f
Autor:
Hao Cheng, Bao-Hua Sun, Li-Hua Zhu, Motohiko Kusakabe, Yudong Luo, Toshitaka Kajino, Chang-Jian Wang, Xing-Qun Yao, Chuang-Ye He, Fu-Long Liu, Bing Guo
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 161 (2024)
Reliable photonuclear reaction rates in stellar conditions are essential for understanding the origin of the heavy stable neutron-deficient isotopes between ^74 Se and ^196 Hg, i.e., p -nuclei. However, many reaction rates of relevance still have to
Externí odkaz:
https://doaj.org/article/12c410f876594b7c8cb66e8051eb4e9a
Autor:
Azni Abdul Aziz, Nor Sofiah Ahmad, S. Ahn, Wako Aoki, Muruthujaya Bhuyan, Ke-Jung Chen, Gang Guo, K. I. Hahn, Toshitaka Kajino, Hasan Abu Kassim, D. Kim, Shigeru Kubono, Motohiko Kusakabe, A. Li, Haining Li, Z. H. Li, W. P. Liu, Z. W. Liu, Tohru Motobayashi, Kuo-Chuan Pan, T.-S. Park, Jian-Rong Shi, Xiaodong Tang, W. Wang, Liangjian Wen, Meng-Ru Wu, Hong-Liang Yan, Norhasliza Yusof
Publikováno v:
AAPPS Bulletin, Vol 31, Iss 1, Pp 1-31 (2021)
Abstract Nuclear astrophysics is an interdisciplinary research field of nuclear physics and astrophysics, seeking for the answer to a question, how to understand the evolution of the universe with the nuclear processes which we learn. We review the r
Externí odkaz:
https://doaj.org/article/b53f75ffcd554fea887d3d1b10c459c5
Autor:
Tomoyuki Maruyama, A. Baha Balantekin, Myung-Ki Cheoun, Toshitaka Kajino, Motohiko Kusakabe, Grant J. Mathews
Publikováno v:
Physics Letters B, Vol 824, Iss , Pp 136813- (2022)
We study neutrino and antineutrino emission from the direct Urca process in neutron-star matter in the presence of strong magnetic fields. We calculate the neutrino emissivity of the direct Urca process, whereby a neutron converts to a proton, an ele
Externí odkaz:
https://doaj.org/article/8c6c3fdcab074460b192c560ebbe58ab
Autor:
Eda Gjergo, Aleksei G. Sorokin, Anthony Ruth, Emanuele Spitoni, Francesca Matteucci, Xilong Fan, Jinning Liang, Marco Limongi, Yuta Yamazaki, Motohiko Kusakabe, Toshitaka Kajino
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 264, Iss 2, p 44 (2023)
This is the first of a series of papers that will introduce a user-friendly, detailed, and modular Galactic Chemical Evolution Model , GalCEM , that tracks isotope masses as a function of time in a given galaxy. The list of tracked isotopes automatic
Externí odkaz:
https://doaj.org/article/aae2b5d29dd442f8988085e72f51e524
Autor:
Heamin Ko, Dukjae Jang, Myung-Ki Cheoun, Motohiko Kusakabe, Hirokazu Sasaki, Xingqun Yao, Toshitaka Kajino, Takehito Hayakawa, Masaomi Ono, Toshihiko Kawano, Grant J. Mathews
We investigate the neutrino flavor change effects due to neutrino self-interaction and shock wave propagation, as well as the matter effects on the neutrino process in core-collapsing supernovae (CCSNe). For the hydrodynamics, we use two models: a si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd4ff7282d5ab72bacb23c9cb0c62a3d
http://arxiv.org/abs/2203.13365
http://arxiv.org/abs/2203.13365
Autor:
Tomoyuki Maruyama, A. Baha Balantekin, Myung-Ki Cheoun, Toshitaka Kajino, Motohiko Kusakabe, Grant J. Mathews
Publikováno v:
Proceedings of Particles and Nuclei International Conference 2021 — PoS(PANIC2021).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60110279cf75d0a9e2166edd7a04e32c
https://doi.org/10.22323/1.380.0320
https://doi.org/10.22323/1.380.0320
Autor:
Yini Lu, Motohiko Kusakabe
The dissipation effects of primordial magnetic fields on the primordial elemental abundances were investigated. When a magnetic field reconnects, its energy is converted to the kinetic energy of charged particles, as observed for solar energetic part
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db2c0e9b8845b5c02a1753ed2af8ec0f
http://arxiv.org/abs/2201.13039
http://arxiv.org/abs/2201.13039
Autor:
Michael A. Famiano, Grant Mathews, A. Baha Balantekin, Toshitaka Kajino, Motohiko Kusakabe, Kanji Mori
We report on the effects of strong magnetic fields on neutrino emission in the modified Urca process. We show that the effect of Landau levels on the various Urca pairs affects the neutrino emission spectrum and leads to an angular asymmetry in the n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b70e358038701c0a6442185d8701754
Publikováno v:
Physical Review D. 104
The amplitude of the primordial magnetic field (PMF) is constrained from observational limits on primordial nuclear abundances. Within this constraint, it is possible that nuclear motion is regulated by Coulomb scattering with electrons and positrons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5e6c5fe900884f8623df6e456716429
https://doi.org/10.1103/physrevd.104.123534
https://doi.org/10.1103/physrevd.104.123534