Observing the signatures of AGB s-process nucleosynthesis in planetary nebulae: An origins story
Frontiers in Astronomy and Space Sciences, 2022 I relate an anecdotal history of the beginnings of a new initiative in studies of the chemical composition of planetary nebulae: namely, investigating abundances of elements beyond the iron-peak through infrared spectroscopy.
Harriet L. Dinerstein
doaj +1 more source
Nucleosynthesis in the Innermost Ejecta of Neutrino-driven Supernova Explosions in Two Dimensions [PDF]
, 2017 We examine nucleosynthesis in the innermost neutrino-processed ejecta (a few ) of self-consistent two-dimensional explosion models of core-collapse supernovae (CCSNe) for six progenitor stars with different initial masses.
S. Wanajo +3 more
semanticscholar +1 more source
r-process Nucleosynthesis from Three-dimensional Magnetorotational Core-collapse Supernovae [PDF]
Astrophysical Journal, 2017 We investigate r-process nucleosynthesis in 3D general-relativistic magnetohydrodynamic simulations of rapidly rotating strongly magnetized core collapse.
P. Mösta +6 more
semanticscholar +1 more source
Big Bang nucleosynthesis revisited via Trojan Horse Method measurements [PDF]
, 2014 Nuclear reaction rates are among the most important input for understanding the primordial nucleosynthesis and therefore for a quantitative description of the early Universe.
Bertulani, C. A. +8 more
core +4 more sources
The Physics of Core-Collapse Supernovae: Explosion Mechanism and Explosive Nucleosynthesis
UniverseRecent developments in multi-dimensional simulations of core-collapse supernovae have considerably improved our understanding of this complex phenomenon.
Luca Boccioli, Lorenzo Roberti
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Active–Sterile Neutrino Oscillations in Neutrino-driven Winds: Implications for Nucleosynthesis [PDF]
Astrophysical Journal, 2019 A protoneutron star produced in a core-collapse supernova (CCSN) drives a wind by its intense neutrino emission. We implement active–sterile neutrino oscillations in a steady-state model of this neutrino-driven wind to study their effects on the dynamics
Zewei Xiong, Meng-Ru Wu, Y. Qian
semanticscholar +1 more source
Geostandards and Geoanalytical Research, Volume 48, Issue 2, Page 331-343, June 2024.Key Points Corrected for the Earth's magnetic field, the SHRIMP's IMF depends on the mineral species, not the chemical composition. The IMF arises from the force constant difference between "hard" and "soft" bonds, which is characteristic of each mineral. This permitted the calculation of IMF‐correction factors for most common Mg‐bearing minerals.
Fernando Bea +7 more
wiley +1 more source
Mixing and Magnetic Fields in Asymptotic Giant Branch Stars in the Framework of FRUITY Models
Universe, 2021 In the last few years, the modeling of asymptotic giant branch (AGB) stars has been much investigated, both focusing on nucleosynthesis and stellar evolution aspects. Recent advances in the input physics required for stellar computations made it possible
Diego Vescovi
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Incomplete neutrino decoupling effect on big bang nucleosynthesis [PDF]
Physical Review D, 2019 In the primordial Universe, neutrino decoupling occurs only slightly before electron-positron annihilations, leading to an increased neutrino energy density with order $10^{-2}$ spectral distortions compared to the standard instantaneous decoupling ...
Julien Froustey, C. Pitrou
semanticscholar +1 more source
The bulk mineralogy, elemental composition, and water content of the Winchcombe CM chondrite fall
Meteoritics &Planetary Science, Volume 59, Issue 5, Page 1006-1028, May 2024.Abstract On the microscale, the Winchcombe CM carbonaceous chondrite contains a number of lithological units with a variety of degrees of aqueous alteration. However, an understanding of the average hydration state is useful when comparing to other meteorites and remote observations of airless bodies.
H. C. Bates +8 more
wiley +1 more source