Results 61 to 70 of about 23,786 (180)
Nucleosynthesis in stellar flares
, 2008 12 pages, 3 figures, contribution to the Proceedings of the XIXemes Rencontres de Blois, Matter and energy in the Universe, Blois, France, May ...
Tatischeff, V. +2 more
openaire +2 more sources
On the Origin of the Early Solar System Radioactivities. Problems with the AGB and Massive Star Scenarios [PDF]
, 2018 Recent improvements in stellar models for intermediate-mass and massive stars are recalled, together with their expectations for the synthesis of radioactive nuclei of lifetime $\tau \lesssim 25$ Myr, in order to re-examine the origins of now extinct ...
Busso, M. +9 more
core +2 more sources
Alpha clustering and the stellar nucleosynthesis of carbon [PDF]
Zeitschrift f�r Physik A: Hadrons and Nuclei, 1994 The astrophysical S--factor and reaction rates for the triple--alpha process are calculated in the direct--capture model. It is shown that the stellar carbon production is extremely sensitive to small variations in the N--N interaction.
Oberhummer, H. +6 more
openaire +3 more sources
The s-process in stellar sites
EPJ Web of Conferences, 2018 Stars are marvellous caldrons where all the elements of the Universe (apartfrom hydrogen and helium) have been synthesized. The solar system chemical distri-butionis the result of many pollution episodes from already extinct stellar generations, occurred
Cristallo Sergio
doaj +1 more source
Neutron capture on ^{205}Tl: depicting the abundance pattern of lead isotopes in s-process nucleosynthesis [PDF]
, 2018 Proposal: Neutron capture on 205Tl: depicting the abundance pattern of lead isotopes in s-process nucleosynthesisWe propose to use the TOF technique to measure the neutron capture cross section of 205Tl(n,gamma) over the full energy range of stellar ...
Calviño Tavares, Francisco +3 more
core +1 more source
Massive Stars and their Supernovae
, 2010 Massive stars and their supernovae are prominent sources of radioactive isotopes, the observations of which thus can help to improve our astrophysical models of those.
Diehl, Roland +3 more
core +1 more source
Chemical evolution models with a new stellar nucleosynthesis [PDF]
Monthly Notices of the Royal Astronomical Society, 1995 Numerical models for the chemical evolution of the Galaxy have been computed with the new stellar yields published by Maeder (1992). These metallicity dependent yields represent an important improvement in the chemical evolution of galaxies but there are still uncertainties in the stellar evolution which prevent completely satisfactory results.
Giovagnoli, A., Tosi, M.
openaire +3 more sources
Nucleosynthesis of Elements in Low to Intermediate Mass Stars through the AGB Phase
, 1997 We present a review of the main phases of stellar evolution with particular emphasis on the nucleosynthesis and mixing mechanisms in low- and intermediate-mass stars. In addition to explicit studies of the effects of the first, second and third dredge-up,
Boothroyd, Arnold I., Lattanzio, John C.
core +2 more sources
The production of proton-rich isotopes beyond iron: The ?-process in stars [PDF]
, 2016 © 2016 World Scientific Publishing Company. Beyond iron, a small fraction of the total abundances in the Solar System is made of proton-rich isotopes, the p-nuclei.
, , Pignatari, Marco, Travaglio, Claudia
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The Astrophysical Journal, 2023 Rotating massive stars with initial progenitor masses M _prog ∼ 25–140 M _⊙ can leave rapidly rotating black holes to become collapsars. The black holes and the surrounding accretion disks may develop powerful jets by magnetohydrodynamics instabilities ...
Shing-Chi Leung +2 more
doaj +1 more source