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Related papers: Calcium Excess in Novae: Beyond Nuclear Physics Un…

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Accurate chemical abundance measurements of X-ray emitting atmospheres pervading massive galaxies, galaxy groups, and clusters provide essential information on the star formation and chemical enrichment histories of these large scale…

High Energy Astrophysical Phenomena · Physics 2020-03-25 F. Mernier , N. Werner , K. Lakhchaura , J. de Plaa , L. Gu , J. S. Kaastra , J. Mao , A. Simionescu , I. Urdampilleta

Context: Recent reaction rate evaluations include reaction rate uncertainties that have been determined in a statistically meaningful manner. Furthermore, reaction rate probability density distributions have been determined and published in…

Instrumentation and Methods for Astrophysics · Physics 2015-06-11 Richard Longland

We present a Monte Carlo calculation of the astrophysical rate of the 15O(alpha,gamma)19Ne reaction based on an evaluation of published experimental data. By considering the likelihood distributions of individual resonance parameters…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Barry Davids , Richard H. Cyburt , Jordi José , Subramanian Mythili

We investigate the radial stability of neutron stars under conditions where their composition may or may not remain in chemical equilibrium during oscillations. Using different equations of state that include nucleons, hyperons, and/or…

High Energy Astrophysical Phenomena · Physics 2024-12-31 Martin O. Canullan-Pascual , German Lugones , Milva G. Orsaria , Ignacio F. Ranea-Sandoval

Reactions between atomic nuclei are measured in great detail in terrestrial laboratory experiments; transferring and extrapolating this knowledge to how the same reactions act within cosmic environments presents major challenges.…

High Energy Astrophysical Phenomena · Physics 2026-03-11 Roland Diehl , Michael Wiescher

Chemical reaction networks are central to all chemical models. Each rate coefficient has an associated uncertainty, which is generally not taken into account when calculating the chemistry. We performed the first uncertainty analysis of a…

Astrophysics of Galaxies · Physics 2025-11-18 M. Van de Sande , M. Gueguen , T. Danilovich , T. J. Millar

The effects of the nuclear structure uncertainties on the description of processes induced by coherent scattering of neutrinos on nuclei are investigated. A reference calculation based on a specific nuclear model is defined and the cross…

Nuclear Theory · Physics 2020-05-06 G. Co' , M. Anguiano , A. M. Lallena

Eruptions of classical novae are possible sources of lithium formation and gamma-ray emission. Nova remnants can also become Type Ia supernovae (SNe Ia). The contribution of novae to these phenomena depends on nova rates, which are not well…

Judging the significance and reproducibility of quantitative research requires a good understanding of relevant uncertainties, but it is often unclear how well these have been evaluated and what they imply. Reported scientific uncertainties…

Applications · Statistics 2017-01-20 David C. Bailey

Modeling the evolution of the elements in the Milky Way is a multidisciplinary and challenging task. In addition to simulating the 13 billion years evolution of our Galaxy, chemical evolution simulations must keep track of the elements…

The $\gamma$-process in core-collapse and/or type Ia supernova explosions is thought to explain the origin of the majority of the so-called $p$ nuclei (the 35 proton-rich isotopes between Se and Hg). Reaction rates for $\gamma$-process…

Nuclear Experiment · Physics 2015-03-09 G. G Kiss , T. Szücs , T. Rauscher , Zs Török , L. Csedreki , Zs Fülöp , Gy Gyürky , Z. Halász

The recently developed method Lasso Monte Carlo (LMC) for uncertainty quantification is applied to the characterisation of spent nuclear fuel. The propagation of nuclear data uncertainties to the output of calculations is an often required…

Computational Physics · Physics 2023-09-04 Arnau Albà , Andreas Adelmann , Dimitri Rochman

The discovery of novae as sources of ~GeV gamma-rays highlights the key role of shocks and relativistic particle acceleration in these transient systems. Although there is evidence for a spectral cut-off above energies ~1-100 GeV at…

High Energy Astrophysical Phenomena · Physics 2016-02-17 Brian D. Metzger , Damiano Caprioli , Indrek Vurm , Andrei Beloborodov , Imre Bartos , Andrey Vlasov

Big bang nucleosynthesis provides the earliest probe of standard model physics, at a time when the universe was less than a thousand seconds old. It determines the abundances of the lightest nuclides, which give rise to the subsequent…

Cosmology and Nongalactic Astrophysics · Physics 2020-05-27 Rafael S. de Souza , Tan Hong Kiat , Alain Coc , Christian Iliadis

The IceCube Neutrino Observatory is highly sensitive to neutrino bursts of $\mathcal{O}$(10) MeV energy that are would be generated by core collapse supernovae in our Galaxy. It will resolve temporal structures in supernova light curves…

High Energy Astrophysical Phenomena · Physics 2021-08-23 Alexander Fritz , David Kappesser

We have performed for the first time a complete $r$-process mass sensitivity study in the $N=82$ region. We take into account how an uncertainty in a single nuclear mass propagates to influence important quantities of neighboring nuclei,…

Nuclear Theory · Physics 2022-10-26 M. Mumpower , D. -L. Fang , R. Surman , M. Beard , A. Aprahamian

The simulation of heavy element nucleosynthesis requires input from yet-to-be-measured nuclear properties. The uncertainty in the values of these off-stability nuclear properties propagates to uncertainties in the predictions of elemental…

High Energy Astrophysical Phenomena · Physics 2024-04-08 M. R. Mumpower , T. M. Sprouse , J. M. Miller , K. A. Lund , J. Cabrera Garcia , N. Vassh , G. C. McLaughlin , R. Surman

Several anomalous elemental abundance ratios have been observed in the metal-poor star HD94028. We assume that its high [As/Ge] ratio is a product of a weak intermediate (i) neutron-capture process. Given that observational errors are…

Solar and Stellar Astrophysics · Physics 2020-01-08 John E. McKay , Pavel A. Denissenkov , Falk Herwig , Georgios Perdikakis , Hendrik Schatz

Accelerator-based neutrino oscillation experiments have the potential to revolutionise our understanding of fundamental physics, offering an opportunity to characterise charge-parity violation in the lepton sector; to determine the neutrino…

High Energy Physics - Experiment · Physics 2026-05-28 Stephen Dolan , Luke Pickering , Patrick Stowell , Callum Wilkinson , Clarence Wret

Classical novae produce radioactive nuclei which are emitters of gamma-rays in the MeV range. Some examples are the lines at 478 and 1275 keV (from 7Be and 22Na) and the positron-electron annihilation emission (511 keV line and a continuum…

High Energy Astrophysical Phenomena · Physics 2013-01-09 M. Hernanz
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