Results 61 to 70 of about 67,641 (245)

r-process nucleosynthesis: connecting rare-isotope beam facilities with the cosmos [PDF]

Journal of Physics G: Nuclear and Particle Physics, 2018
This is an exciting time for the study of r-process nucleosynthesis. Recently, a neutron star merger GW170817 was observed in extraordinary detail with gravitational waves and electromagnetic radiation from radio to gamma rays.
C. Horowitz, A. Arcones, B. Côté, I. Dillmann, W. Nazarewicz, I. Roederer, H. Schatz, A. Aprahamian, D. Atanasov, A. Bauswein, T. Beers, J. Bliss, M. Brodeur, J. Clark, A. Frebel, F. Foucart, C. Hansen, O. Just, A. Kankainen, G. McLaughlin, J. Kelly, S. Liddick, D. Lee, J. Lippuner, D. Martin, J. Mendoza-Temis, B. Metzger, M. Mumpower, G. Perdikakis, J. Pereira, B. O’Shea, R. Reifarth, A. Rogers, D. Siegel, A. Spyrou, R. Surman, Xiao-Dong Tang, T. Uesaka, Meng Wang   +38 more
semanticscholar   +1 more source

Nucleosynthesis in O-Ne-Mg Supernovae [PDF]

, 2007
We have studied detailed nucleosynthesis in the shocked surface layers of an Oxygen-Neon-Magnesium core collapse supernova with an eye to determining if the conditions are suitable for r process nucleosynthesis.
B. Müller, H.-T. Janka, Hillebrandt W., Poelarends A. J., R. D. Hoffman, Thielemann F.-K., Witti J.   +6 more
core   +3 more sources

Isomers in the Cosmos

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
doaj   +1 more source

Mixing Uncertainties in Low-Metallicity AGB Stars: The Impact on Stellar Structure and Nucleosynthesis

Universe, 2021
The slow neutron-capture process (s-process) efficiency in low-mass AGB stars (1.5 < M/M⊙ < 3) critically depends on how mixing processes in stellar interiors are handled, which is still affected by considerable uncertainties.
Umberto Battino, Claudia Lederer-Woods, Borbála Cseh, Pavel Denissenkov, Falk Herwig   +4 more
doaj   +1 more source

Leptonic Photons and Nucleosynthesis [PDF]

, 1996
Should $U(1)$ long-range forces be associated to electron, muon and/or tau quantum number then their ''fine structure constants" are seen to be bound by nucleosynthesis data to be less than about $1.7 \times 10^{-11}$.
Grifols, J. A., Masso, E.
core   +2 more sources

Insights into AGB Nucleosynthesis Thanks to Spectroscopic Abundance Measurements in Intrinsic and Extrinsic Stars

Universe, 2022
The foundations of stellar nucleosynthesis have been established more than 70 years ago. Since then, much progress has been made, both on the theoretical side, with stellar evolution and nucleosynthesis models of increasing complexity, using more and ...
Sophie Van Eck, Shreeya Shetye, Lionel Siess   +2 more
doaj   +1 more source

Neutron Star Mergers and Nucleosynthesis of Heavy Elements [PDF]

, 2017
The existence of neutron star mergers has been supported since the discovery of the binary pulsar and the observation of its orbital energy loss, consistent with General Relativity.
F. Thielemann, M. Eichler, I. Panov, B. Wehmeyer   +3 more
semanticscholar   +1 more source

Full Transport General Relativistic Radiation Magnetohydrodynamics for Nucleosynthesis in Collapsars [PDF]

Astrophysical Journal, 2019
We model a compact black hole-accretion disk system in the collapsar scenario with full transport, frequency dependent, general relativistic radiation magnetohydrodynamics.
J. Miller, T. Sprouse, C. Fryer, B. Ryan, J. Dolence, M. Mumpower, R. Surman   +6 more
semanticscholar   +1 more source

Direct reactions for astrophysical p-capture rates with ORRUBA and GODDESS

Frontiers in Physics
Understanding the nucleosynthesis and energy generation in quiescent and explosive stellar burning requires a detailed understanding of reaction rates on many unstable nuclides.
S. D. Pain
doaj   +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
doaj   +1 more source