Trojan Horse Investigation for AGB Stellar Nucleosynthesis [PDF]
Universe, 2022 Asymptotic Giant Branch (AGB) stars are among the most important astrophysical sites influencing the nucleosynthesis and the chemical abundances in the Universe. From a pure nuclear point of view, several processes take part during this peculiar stage of
Maria Letizia Sergi +17 more
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Electron Capture Cross Sections for Stellar Nucleosynthesis [PDF]
Advances in High Energy Physics, 2015 In the first stage of this work, we perform detailed calculations for the cross sections of the electron capture on nuclei under laboratory conditions.
P. G. Giannaka, T. S. Kosmas
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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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Underground laboratory JUNA shedding light on stellar nucleosynthesis [PDF]
Nuclear Science and Techniques, 2023 Extremely low background experiments to measure key nuclear reaction cross sections of astrophysical interest are conducted at the world's deepest underground laboratory, the Jingping Underground laboratory for Nuclear Astrophysics (JUNA). High precision
Toshitaka Kajino
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The nebular spectra of SN 2012aw and constraints on stellar nucleosynthesis from oxygen emission lines [PDF]
, 2014 We present nebular-phase optical and near-infrared spectroscopy of the Type IIP supernova SN 2012aw combined with non-local thermodynamic equilibrium radiative transfer calculations applied to ejecta from stellar evolution/explosion models.
Anders Jerkstrand +6 more
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Presolar Grain Isotopic Ratios as Constraints to Nuclear and Stellar Parameters of Asymptotic Giant Branch Star Nucleosynthesis [PDF]
Astrophysical Journal, 2021 Recent models for evolved low-mass stars (with M ≲ 3 M ⊙), undergoing the asymptotic giant branch (AGB) phase assume that magnetic flux-tube buoyancy drives the formation of 13C reservoirs in He-rich layers.
S. Palmerini +10 more
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Residual Abundances in GALAH DR3: Implications for Nucleosynthesis and Identification of Unique Stellar Populations [PDF]
Astrophysical Journal, 2022 We investigate the [X/Mg] abundances of 16 elements for 82,910 Galactic disk stars from GALAH+ DR3. We fit the median trends of low-Ia and high-Ia populations with a two-process model, which describes stellar abundances in terms of a prompt core-collapse
Emily J. Griffith +5 more
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The Dawes Review 2: Nucleosynthesis and Stellar Yields of Low- and Intermediate-Mass Single Stars [PDF]
Publications Astronomical Society of Australia, 2014 The chemical evolution of the Universe is governed by the chemical yields from stars, which in turn are determined primarily by the initial stellar mass.
Amanda I. Karakas, John C. Lattanzio
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Stellar signatures of inhomogeneous big bang nucleosynthesis [PDF]
, 2020 We evaluate abundance anomalies generated in patches of the Universe where the baryon-to-photon ratio was locally enhanced by possibly many orders of magnitude in the range η=10-10–10-1.
Alexandre Arbey +2 more
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Deep Mixing of 3 He: Reconciling Big Bang and Stellar Nucleosynthesis [PDF]
Science, 2006 Low-mass stars, ∼1 to 2 solar masses, near the Main Sequence are efficient at producing the helium isotope 3He, which they mix into the convective envelope on the giant branch and should distribute into the Galaxy by way of envelope loss. This process is
P. P. Eggleton +2 more
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