Zobrazeno 1 - 10
of 200
pro vyhledávání: '"Martínez-Pinedo Gabriel"'
Decomposing theoretical nuclear mass predictions into a liquid-drop parametrization and local shell effects shows that r-process abundances are virtually insensitive to large variations of the masses which originate from nuclear bulk properties of th
Externí odkaz:
http://arxiv.org/abs/2412.03243
Autor:
Sneppen, Albert, Just, Oliver, Bauswein, Andreas, Damgaard, Rasmus, Watson, Darach, Shingles, Luke J., Collins, Christine E., Sim, Stuart A., Xiong, Zewei, Martinez-Pinedo, Gabriel, Soultanis, Theodoros, Vijayan, Vimal
The time until black hole formation in a binary neutron-star (NS) merger contains invaluable information about the nuclear equation of state (EoS) but has thus far been difficult to measure. We propose a new way to constrain the merger remnant's NS l
Externí odkaz:
http://arxiv.org/abs/2411.03427
Autor:
Pognan, Quentin, Wu, Meng-Ru, Martínez-Pinedo, Gabriel, da Silva, Ricardo Ferreira, Jerkstrand, Anders, Grumer, Jon, Flörs, Andreas
Neutron star (NS) mergers are known to produce heavy elements through rapid neutron capture (r-process) nucleosynthesis. Actinides are expected to be created solely by the r-process in the most neutron rich environments. Confirming if NS mergers prov
Externí odkaz:
http://arxiv.org/abs/2409.16210
Publikováno v:
EPJ Web of Conferences, Vol 290, p 02020 (2023)
Variation in the proton single-particle energy gaps is investigated within the framework of nuclear shell model. The change is identified to originate mainly from the central force of the proton-neutron interaction. The relationship between the nucle
Externí odkaz:
https://doaj.org/article/09f7ff54978b44a7870aad5e84ef0d67
Publikováno v:
Phys. Rev. C 110, 065803 (2024)
We compute $\beta$-decay half-lives of isotonic nuclear chains located at neutron shell closures $N=50$, $82$, $126$ and $184$, which are of particular importance for the $r$-process nucleosynthesis, and study the role of first-forbidden transitions
Externí odkaz:
http://arxiv.org/abs/2403.17115
Autor:
Xiong, Zewei, Wu, Meng-Ru, George, Manu, Lin, Chun-Yu, Largani, Noshad Khosravi, Fischer, Tobias, Martínez-Pinedo, Gabriel
Fast flavor conversions (FFCs) of neutrinos, which can occur in core-collapse supernovae (CCSNe), are multiangle effects. They depend on the angular distribution of the neutrino's electron lepton number (ELN). In this work, we present a comprehensive
Externí odkaz:
http://arxiv.org/abs/2402.19252
Publikováno v:
EPJ Web of Conferences, Vol 260, p 03002 (2022)
β-decay rates of neutron-rich nuclei, in particular those located at neutron shell closures, play a central role in simulations of the heavy-element nucleosynthesis and resulting abundance distributions. We present β-decay half-lives of even-even N
Externí odkaz:
https://doaj.org/article/3d797a44d1e34de19686873c2c4288a9
Publikováno v:
Phys. Rev. C 110, 015504 (2024)
We compute the static density and spin structure factors in the long wavelength limit for pure neutron matter at subsaturation densities relevant to core-collapse supernovae within the Brueckner-Hartree-Fock (BHF) approach. The BHF results are reliab
Externí odkaz:
http://arxiv.org/abs/2401.10737
Autor:
Collins, Christine E., Shingles, Luke J., Bauswein, Andreas, Sim, Stuart A., Soultanis, Theodoros, Vijayan, Vimal, Floers, Andreas, Just, Oliver, Leck, Gerrit, Lioutas, Georgios, Martínez-Pinedo, Gabriel, Sneppen, Albert, Watson, Darach, Xiong, Zewei
Recent analysis of the kilonova, AT2017gfo, has indicated that this event was highly spherical. This may challenge hydrodynamics simulations of binary neutron star mergers, which usually predict a range of asymmetries, and radiative transfer simulati
Externí odkaz:
http://arxiv.org/abs/2309.05579
Autor:
Fischer, Tobias, Guo, Gang, Langanke, Karlheinz, Martinez-Pinedo, Gabriel, Qian, Yong-Zhong, Wu, Meng-Ru
Publikováno v:
PPNP 137 (2024) 104107
Neutrinos are known to play important roles in many astrophysical scenarios from the early period of the big bang to current stellar evolution being a unique messenger of the fusion reactions occurring in the center of our sun. In particular, neutrin
Externí odkaz:
http://arxiv.org/abs/2308.03962