Results 41 to 50 of about 66,893 (303)
Mergers of Binary Neutron Star Systems: A Multimessenger Revolution
Frontiers in Astronomy and Space Sciences, 2021 On August 17, 2017, less than two years after the direct detection of gravitational radiation from the merger of two∼30 M⊙ black holes, a binary neutron star merger was identified as the source of a gravitational wave signal of ∼100 s duration that ...
Elena Pian
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Binary Neutron Star Mergers: Mass Ejection, Electromagnetic Counterparts, and Nucleosynthesis [PDF]
Astrophysical Journal, 2018 We present a systematic numerical relativity study of the mass ejection and the associated electromagnetic transients and nucleosynthesis from binary neutron star (NS) mergers.
D. Radice +5 more
semanticscholar +1 more source
Massive Star Modeling and Nucleosynthesis
Frontiers in Astronomy and Space Sciences, 2021 After a brief introduction to stellar modeling, the main lines of massive star evolution are reviewed, with a focus on the nuclear reactions from which the star gets the needed energy to counterbalance its gravity.
Sylvia Ekström
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Neutron-Driven Nucleosynthesis in Stellar Plasma
Frontiers in Physics, 2022 A large uncertainty for the slow neutron capture nucleosynthesis (s-process) models is caused by the amount of neutrons available to the process itself.
R. Spartà +24 more
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Design study of a HPGe detector array for β-decay investigation in laboratory ECR plasmas
Frontiers in Physics, 2022 In the frame of the PANDORA project, a new experimental approach aims at measuring in-plasma β-decay rate as a function of thermodynamical conditions of the environment, namely a laboratory magnetized plasma able to mimic some stellar-like conditions ...
Eugenia Naselli +12 more
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Big bang nucleosynthesis constraints on sterile neutrino and lepton asymmetry of the Universe [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 We consider the cosmological effects of sterile neutrinos with the masses of 150–450 MeV . The decay of sterile neutrinos changes the thermal history of the Universe and affects the energy density of radiation at recombination and the big bang ...
G. Gelmini +4 more
semanticscholar +1 more source
Kilonova Emission and Heavy Element Nucleosynthesis
Universe, 2023 The binary neutron star merger observed and localized on 17 August 2017 by the LIGO and Virgo gravitational interferometers and by numerous telescopes on the ground and in orbit linked in an unambiguous way the coalescence of double neutron stars with ...
Elena Pian
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Hydrogen Tunneling in Stoichiometric and Catalytic Reactions involving Transition Metals
ChemCatChem, Volume 15, Issue 24, December 19, 2023., 2023 An overview on the importance of the participation of hydrogen tunneling in E−H bond activation reactions (E=C, O, Si…) mediated by transition metals is presented. Understanding when hydrogen tunneling occurs can be a powerful tool for designing new catalysts to perform challenging reactions.
Jon M. Matxain, Miguel A. Huertos
wiley +1 more source
Annalen der Physik, Volume 535, Issue 12, December 2023., 2023 This article describes the implementation of low‐frequency axion haloscope setups inside the future BabyIAXO magnet. The RADES proposal has a potential sensitivity to the axion‐photon coupling down to values corresponding to the KSVZ model, in the mass range between 1 and 2 μ$\umu$eV.
Saiyd Ahyoune +29 more
wiley +1 more source
Atoms, 2023 The nucleosynthesis of chemical elements has been established to be the result of a variety of different types of nuclear reactions in stars. Under the extreme temperatures and densities encountered in such environments, nuclear isomers can be populated ...
Eric B. Norman
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