R-process nucleosynthesis in supernova explosion

M. Saruwatari, Masa-Aki Hashimoto, K. Kotake, S. Yamada

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

Abstract

We investigate the possibility of the r-process during the magnetohydrodynamical (MHD) explosion of supernova in a massive star of 13M with the effects of neutrinos included. Contrary to the case of the spherical explosion, jet-like explosion due to the combined effects of rotation and magnetic field lowers the electron fraction significantly inside the layers. We find that the ejected material of low electron fraction responsible for the r-process comes out from the inner deep region of the core that is made up of iron-group nuclei. This leads to the production of the second to third peak in the solar r-process elements. We suggest that there are some variations in the r-process nucleosynthesis according to the initial conditions of rotational and magnetic fields.

Original languageEnglish
Title of host publicationFrontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3
Pages420-422
Number of pages3
DOIs
Publication statusPublished - Nov 24 2011
Event3rd International Conference on Frontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3 - Rhodes, Greece
Duration: Aug 23 2010Aug 27 2010

Publication series

NameAIP Conference Proceedings
Volume1377
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other3rd International Conference on Frontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3
CountryGreece
CityRhodes
Period8/23/108/27/10

Fingerprint

nuclear fusion
supernovae
explosions
massive stars
magnetic fields
electrons
neutrinos
iron
nuclei

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Plant Science
  • Physics and Astronomy(all)
  • Nature and Landscape Conservation

Cite this

Saruwatari, M., Hashimoto, M-A., Kotake, K., & Yamada, S. (2011). R-process nucleosynthesis in supernova explosion. In Frontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3 (pp. 420-422). (AIP Conference Proceedings; Vol. 1377). https://doi.org/10.1063/1.3628432

R-process nucleosynthesis in supernova explosion. / Saruwatari, M.; Hashimoto, Masa-Aki; Kotake, K.; Yamada, S.

Frontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3. 2011. p. 420-422 (AIP Conference Proceedings; Vol. 1377).

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

Saruwatari, M, Hashimoto, M-A, Kotake, K & Yamada, S 2011, R-process nucleosynthesis in supernova explosion. in Frontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3. AIP Conference Proceedings, vol. 1377, pp. 420-422, 3rd International Conference on Frontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3, Rhodes, Greece, 8/23/10. https://doi.org/10.1063/1.3628432
Saruwatari M, Hashimoto M-A, Kotake K, Yamada S. R-process nucleosynthesis in supernova explosion. In Frontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3. 2011. p. 420-422. (AIP Conference Proceedings). https://doi.org/10.1063/1.3628432
Saruwatari, M. ; Hashimoto, Masa-Aki ; Kotake, K. ; Yamada, S. / R-process nucleosynthesis in supernova explosion. Frontiers in Nuclear Structure, Astrophysics, and Reactions, FINUSTAR 3. 2011. pp. 420-422 (AIP Conference Proceedings).
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