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In order to study the processes creating intermediate and heavy nuclei in massive stars it is necessary to provide neutron capture cross sections and reaction rates close to stability and for moderately unstable neutron-rich nuclei.…

Astrophysics · Physics 2007-05-23 T. Rauscher , A. Heger , S. E. Woosley , R. D. Hoffman

A brief survey of nuclide abundances in the solar-system and in cosmic rays and of the believed mechanisms of their synthesis is given. The role of spallation processes in nucleosynthesis is discussed. A short review of recent measurements,…

Astrophysics · Physics 2007-05-23 Stepan G. Mashnik

We determine the influence of a variation of the fundamental ``constants'' on the predicted helium abundance in Big Bang Nucleosynthesis. The analytic estimate is performed in two parts: the first step determines the dependence of the…

Astrophysics · Physics 2008-11-26 Christian M. Mueller , Gregor Schaefer , Christof Wetterich

The sources of nuclear uncertainties in nova nucleosynthesis have been identified using hydrodynamical nova models. Experimental efforts have followed and significantly reduced those uncertainties. This is important for the evaluation of…

Astrophysics · Physics 2009-06-23 Alain Coc

During its hot, dense, early evolution the Universe was a primordial nuclear reactor, synthesizing the light nuclides D, 3He, 4He and 7Li in the first thousand seconds. The presently observed abundances of these relic nuclides provide a…

Astrophysics · Physics 2007-05-23 G. Steigman

One of the most compelling pieces of evidence of the Hot Big Bang model is the realisation and confirmation that some nuclides were created shortly after the Big Bang. This process is referred to as Big Bang nucleosynthesis (or, sometimes,…

Cosmology and Nongalactic Astrophysics · Physics 2024-09-11 Ryan Cooke

This paper is superseded by Arxiv:1911.07334. Big-bang nucleosynthesis (BBN) is a valuable tool to constrain the physics of the early universe and is the only probe of the radiation-dominated epoch. A fundamental assumption in BBN is that…

Cosmology and Nongalactic Astrophysics · Physics 2020-07-01 Nishanth Sasankan , Atul Kedia , Motohiko Kusakabe , Grant J Mathews

The r-process, or the rapid neutron-capture process, of stellar nucleosynthesis is called for to explain the production of the stable (and some long-lived radioactive) neutron-rich nuclides heavier than iron that are observed in stars of…

Astrophysics · Physics 2008-11-26 M. Arnould , S. Goriely , K. Takahashi

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

Primordial nucleosynthesis provides a probe of the Universe during its early evolution. Given the progress exploring the constituents, structure, and recent evolution of the Universe, it is timely to review the status of Big Bang…

Astrophysics · Physics 2009-06-23 Gary Steigman

Rigorous statistical methods for estimating thermonuclear reaction rates and nucleosynthesis are becoming increasingly established in nuclear astrophysics. The main challenge being faced is that experimental reaction rates are highly…

Nuclear Experiment · Physics 2015-06-22 Christian Iliadis , Richard Longland , Alain Coc , F. X. Timmes , Art E. Champagne

Nucleosynthesis beyond Fe poses additional challenges not encountered when studying astrophysical processes involving light nuclei. Generally higher temperatures and nuclear level densities lead to stronger contributions of transitions on…

Nuclear Experiment · Physics 2022-10-26 T. Rauscher

Half a century has passed since the foundation of nuclear astrophysics. Since then, this discipline has reached its maturity. Today, nuclear astrophysics constitutes a multidisciplinary crucible of knowledge that combines the achievements…

Solar and Stellar Astrophysics · Physics 2015-05-28 Jordi Jose , Christian Iliadis

The Big Bang Nucleosynthesis (BBN) model is a cornerstone for the understanding of the evolution of the early universe, making seminal predictions that are in outstanding agreement with the present observation of light element abundances in…

Nuclear Theory · Physics 2023-02-15 Carlos A. Bertulani , Francis W. Hall , Benjamin I. Santoyo

Atomic nuclei are transformed into each other in the cosmos by nuclear reactions inside stars: -- the process of nucleosynthesis. The basic concepts of determining nuclear reaction rates inside stars and how they manage to burn their fuel…

Astrophysics · Physics 2007-05-23 A. Ray

WThe current status of big bang nucleosynthesis is reviewed with an emphasis on the comparison between the observational determination of the light element abundances of \D, \he3, \he4 and \li7 and the predictions from theory. In…

Astrophysics · Physics 2009-09-15 Keith A. Olive , Sean T. Scully

We summarize the history, theory, observational status, and implications of big-bang nucleosynthesis.

Astrophysics · Physics 2007-05-23 Scott Burles , Kenneth M. Nollett , Michael S. Turner

In this review, we emphasize the interplay between astrophysical observations, modeling, and nuclear physics laboratory experiments. Several important nuclear cross sections for astrophysics have long been identified e.g.…

Nuclear Experiment · Physics 2016-05-26 Alain Coc , Fairouz Hammache , Juergen Kiener

This review highlights current (and future) hot topics in astrophysics where atomic or molecular input data are (or will be) essential, with special emphasis on topics relating to nucleosynthesis and cosmochemistry. We first discuss issues…

Astrophysics · Physics 2009-11-10 A. Jorissen

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…

Solar and Stellar Astrophysics · Physics 2013-04-04 T. Rauscher , C. Fröhlich