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Nuclear astrophysics simulations aiming to study the origin of the elements in stars require a multitude of nuclear physics input. Both systematic model dependent and statistically correlated uncertainties need to be considered. An…

Solar and Stellar Astrophysics · Physics 2013-10-18 M. G. Bertolli , F. Herwig , M. Pignatari , T. Kawano

The source of the Galactic Lithium (Li) has long been a puzzle. With the discovery of Li in novae, extensive research has been conducted. However, there still exists a significant disparity between the observed abundance of lithium in novae…

Solar and Stellar Astrophysics · Physics 2024-06-25 Jun Gao , Chunhua Zhu , Guoliang Lü , Jinlong Yu , Lin Li , Helei Liu , Sufen Guo

Nuclear reactions govern major aspects of the chemical evolution of galaxies and stars. Analytic study of the reaction rates and reaction probability integrals is attempted here. Exact expressions for the reaction rates and reaction…

Classical Analysis and ODEs · Mathematics 2009-09-25 Hans J. Haubold , Arak Mathai Mathai

The description of nuclear reactions induced by supernova neutrinos has witnessed significant progress during the recent years. At the energies and momentum transfers relevant for supernova neutrinos neutrino-nucleus cross sections are…

Nuclear Theory · Physics 2015-10-28 K. G. Balasi , K. Langanke , G. Martínez-Pinedo

The $\nu p$ process appears in proton-rich, hot matter which is expanding in a neutrino wind and may be realised in explosive environments such as core-collapse supernovae or in outflows from accretion disks. The impact of uncertainties in…

High Energy Astrophysical Phenomena · Physics 2020-03-30 T. Rauscher , N. Nishimura , G. Cescutti , R. Hirschi , A. St. J. Murphy , C. Fröhlich

New generation of neutron decay experiments, which can be done with high accuracy at new Spallation Neutron Sources, are very important for solution of current problems of fundamental physics and for tests of the Standard Model. The open…

Nuclear Theory · Physics 2016-09-08 Vladimir Gudkov

A novel technique has been developed, which will open exciting new opportunities for studying the very neutron-rich nuclei involved in the r-process. As a proof-of-principle, the $\gamma$-spectra from the $\beta$-decay of $^{76}$Ga have…

Precise nuclear reaction rates are needed for a detailed description of the production of elements in primordial nucleosynthesis and during the hydrostatic burning of stars to constrain the astrophysical models. The relevant reactions are…

Nuclear Theory · Physics 2009-09-29 C. A. Bertulani

Merging neutron stars produce "kilonovae"---electromagnetic transients powered by the decay of unstable nuclei synthesized via rapid neutron capture (the r-process) in material that is gravitationally unbound during inspiral and…

High Energy Astrophysical Phenomena · Physics 2021-09-29 Jennifer Barnes , Y. L. Zhu , K. A. Lund , T. M. Sprouse , N. Vassh , G. C. McLaughlin , M. R. Mumpower , R. Surman

Nuclear reaction rates determine the abundances of isotopes in stellar burning processes. A multitude of reactions determine the reaction flow pattern which is described in terms of reaction network simulations. The reaction rates are…

Instrumentation and Methods for Astrophysics · Physics 2010-11-03 M. Wiescher , T. Rauscher

Most gamma ray bursts are able to be explained using supernovae related phenomenon. Some measured results still lack compelling explanations and a contributory cause from nuclear criticality is proposed. This is shown to have general…

General Physics · Physics 2015-06-12 Robert Bruce Hayes

A classical nova results from runaway thermonuclear explosions on the surface of a white dwarf that accretes matter from a low-mass main-sequence stellar companion. In 2012 and 2013, three novae were detected in gamma rays and stood in…

High Energy Astrophysical Phenomena · Physics 2014-08-05 LAT Collaboration

Free nucleons propagating in water are known to produce gamma rays, which form a background to the searches for diffuse supernova neutrinos and sterile neutrinos carried out with Cherenkov detectors. As a consequence, the process of nucleon…

We review the Cosmology and Physics underlying Primordial Nucleosynthesis and survey current observational data in order to compare the predictions of Big Bang Nucleosynthesis with the inferred primordial abundances. From this comparison we…

Astrophysics · Physics 2008-11-26 Keith A. Olive , Gary Steigman , Terry P. Walker

There is a wide consensus in the astrophysics community that the mechanism underlying the observed Classical Nova eruptions is a surface thermonuclear runaway. We start this short review with the main observational facts that lead to the…

Solar and Stellar Astrophysics · Physics 2015-05-28 S. A. Glasner , J. W. Truran

The explosion of a white dwarf of mass 1.36 M$_\odot$ has been simulated in three dimensions with the aid of a SPH code. The explosion follows the delayed detonation paradigma. In this case the deflagration-detonation transition is induced…

Astrophysics · Physics 2009-11-07 Domingo Garcia-Senz , Eduardo Bravo

The treatment of nuclear effects in neutrino-nucleus interactions is one of the main sources of systematic uncertainty for the analysis and interpretation of data of neutrino oscillation experiments. Neutrinos interact with nuclei via…

High Energy Physics - Phenomenology · Physics 2020-01-29 Carlotta Giusti , Martin V. Ivanov

Nucleosynthesis processes involve reactions on several thousand nuclei, both close to and far off stability. The preparation of reaction rates to be used in astrophysical investigations requires experimental and theoretical input. In this…

Nuclear Theory · Physics 2009-11-13 T. Rauscher

We present a simple method for determining the (correlated) uncertainties of the light element abundances expected from big bang nucleosynthesis, which avoids the need for lengthy Monte Carlo simulations. Our approach helps to clarify the…

Astrophysics · Physics 2009-10-07 G. Fiorentini , E. Lisi , Subir Sarkar , F. L. Villante

The neutrino deficits observed in four solar neutrino experiments, relative to the theoretical predictions, have led to fresh insights into neutrino and solar physics. Neutrino emission from distant, energetic astronomical systems may form…