Physical conditions for the r-process

S. Wanajo, T. Tachibana, S. Goriely

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recent works show that the r-process can proceed by competition between neutron capture and β-decay in low temperature environments (< 5 x 108 K; cold r-process) where photo-disintegration plays no role. This is in contrast to the traditional picture of the r-process in high temperature environments (∼ 1 x 109 K; hot r-process) where the (n, γ)-(γ, n) equilibrium holds. In this study, we explore nucleosynthesis calculations based on a site-independent model to elucidate the physical conditions leading to cold and hot r-processes.

Original languageEnglish
Title of host publicationOrigin of Matter and Evolution of Galaxies 2011
Pages217-224
Number of pages8
DOIs
Publication statusPublished - 2012 Dec 1
EventInternational Symposium on Origin of Matter and Evolutions of Galaxies 2011, OMEG 2011 - Wako, Japan
Duration: 2011 Nov 142011 Nov 17

Publication series

NameAIP Conference Proceedings
Volume1484
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Symposium on Origin of Matter and Evolutions of Galaxies 2011, OMEG 2011
CountryJapan
CityWako
Period11/11/1411/11/17

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Keywords

  • abundances
  • nuclear reactions
  • nucleosynthesis

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Wanajo, S., Tachibana, T., & Goriely, S. (2012). Physical conditions for the r-process. In Origin of Matter and Evolution of Galaxies 2011 (pp. 217-224). (AIP Conference Proceedings; Vol. 1484). https://doi.org/10.1063/1.4763398