Results 11 to 20 of about 53,561 (244)
Chaotic Amplification of Neutrino Chemical Potentials by Neutrino Oscillations in Big Bang Nucleosynthesis [PDF]
, 1996 We investigate in detail the parameter space of active-sterile neutrino oscillations that amplifies neutrino chemical potentials at the epoch of Big Bang Nucleosynthesis.
A. Balysh +27 more
core +4 more sources
Nucleosynthesis Around Black Holes [PDF]
, 1999 Study of nucleosynthesis in accretion disks around black holes was initiated by Chakrabarti et al. (1987). In the present work we do the similar analysis using the state-of-the-art disk model, namely, Advective Accretion Disks.
Mukhopadhyay, Banibrata
core +4 more sources
Neutrino Effects in Nucleosynthesis [PDF]
Neutrino Physics, 2000 The nucleosynthesis within a Type II supernova occurs in an intense neutrino flux. I discuss some of the effects associated with neutrino interactions, including direct synthesis in the neutrino process, the role of neutrinos in controlling the r-process
Haxton, W. C.
core +5 more sources
Leptonic Photons and Nucleosynthesis [PDF]
Physics Letters B, 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 +4 more sources
Proton-rich nucleosynthesis and nuclear physics [PDF]
, 2012 Although the detailed conditions for explosive nucleosynthesis are derived from astrophysical modeling, nuclear physics determines fundamental patterns in abundance yields, not only for equilibrium processes. Focussing on the nu p- and the gamma-process,
Froehlich, C., Rauscher, T.
core +4 more sources
Nucleosynthesis in Supernovae [PDF]
Physical Review Letters, 1999 Core collapse supernovae are dominated by energy transport from neutrinos. Therefore, some supernova properties could depend on symetries and features of the standard model weak interactions. The cross section for neutrino capture is larger than that for
Horowitz, C. J., Li, Gang
core +2 more sources
Eighteen Years of Kilonova Discoveries with Swift
Universe, 2023 Swift has now completed 18 years of mission, during which it discovered thousands of gamma-ray bursts as well as new classes of high-energy transient phenomena.
Eleonora Troja
doaj +1 more source
Universe, 2022 Presolar grains are microscopic dust grains that formed in the stellar winds or explosions of ancient stars that died before the formation of the solar system.
Nan Liu, Sergio Cristallo, Diego Vescovi
doaj +1 more source
The building blocks of the universe
HTS Teologiese Studies/Theological Studies, 2021 I review the state of knowledge of the composition of the universe for a non-specialist audience. The universe is built up of four components. These are radiation, baryonic (ordinary) matter, dark matter and dark energy.
Anslyn J. John
doaj +1 more source
Solar data uncertainty impacts on MCMC methods for r-process nucleosynthesis
Frontiers in Physics, 2022 In recent work, we developed a Markov Chain Monte Carlo (MCMC) procedure to predict the ground state masses capable of forming the observed Solar r-process rare-earth abundance peak.
Nicole Vassh +4 more
doaj +1 more source