Results 41 to 50 of about 3,128 (211)
The Influence of Nuclear Reactions and Nuclear Structure in Astrophysics
EPJ Web of Conferences, 2017 Nuclear reactions play an important role for the energy production and the nucleosynthesis in stars. New facilities, able to accelerate radioactive nuclei or high-intensity stable beams have allowed us to measure in the laboratory reactions involving ...
Rehm K. E.
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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
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Exploring the origin of the rarest stable isotopes naturally occurring on Earth with real photon beams [PDF]
EPJ Web of ConferencesThis lecture brings into focus research work that aims to advance fundamental knowledge on a forefront topic in nuclear astrophysics – the nucleosynthesis beyond Fe of the rarest stable isotopes naturally occurring on Earth (the origin of p-nuclei).
Banu Adriana
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θ-dependence of light nuclei and nucleosynthesis
Physical Review Research, 2020 We investigate the impact of the QCD vacuum at nonzero θ on the properties of light nuclei, Big Bang nucleosynthesis, and stellar nucleosynthesis. Our analysis starts with a calculation of the θ-dependence of the neutron-proton mass difference and ...
Dean Lee +4 more
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Stellar signatures of inhomogeneous big bang nucleosynthesis [PDF]
Physical Review D, 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 $η= 10^{-10} - 10^{-1}$. Our study is motivated by the possible survival of rare dense regions in the early universe, the most extreme of which, above a critical threshold ...
Alexandre Arbey +2 more
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On the production and survival of carbon fuel for superbursts on accreting neutron stars : implications for mass donor evolution [PDF]
, 2006 We have investigated the physical conditions under which accreting neutron stars in low-mass X-ray binaries can both produce and preserve sufficient quantities of carbon fuel to trigger superbursts.
Mukhopadhyay, Banibrata +3 more
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Atomic Data for Stellar Nucleosynthesis [PDF]
Proceedings of the International Astronomical Union, 2015 AbstractStellar chemical composition analyses can only yield reliable abundances if the atomic transition parameters are accurately determined. During the last couple of decades a renewed emphasis on laboratory spectroscopy has produced large sets of useful atomic transition probabilities for species of interest to stellar spectroscopists.
Christopher Sneden +3 more
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Stellar Evolution and Convection in 3D Hydrodynamic Simulations of a Complete Burning Phase
GalaxiesOur understanding of stellar evolution and nucleosynthesis is limited by the uncertainties coming from the complex multi-dimensional processes in stellar interiors, such as convection and nuclear burning. Three-dimensional stellar models can improve this
Federico Rizzuti +8 more
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Outstanding problems in nuclear astrophysics: recent progress at TRIUMF
AIP Advances, 2014 Recent experimental and theoretical efforts at TRIUMF on nuclear reactions relevant to big bang nucleosynthesis, quiescent stellar fusion, classical novae, and Type I X-ray bursts are described.
B. Davids
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Bridging the Gap: Elusive Explosions in the Local Universe [PDF]
, 2011 For centuries, we have known that our dynamic universe is adorned by cosmic fireworks: energetic and ephemeral beacons of light from a single star that are a million (nova) to a billion (supernova) times brighter than our sun. However, it had been an age-
Kasliwal, Mansi Manoj
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