Explosive nucleosynthesis in different Ye conditions

Nobuyuki Iwamoto; Hideyuki Umeda; Ken'Ichi Nomoto; Nozomu Tominaga; Friedrich Karl Thielemann; W. Raphael Hix

doi:10.1063/1.2234441

Explosive nucleosynthesis in different Y_e conditions

Nobuyuki Iwamoto, Hideyuki Umeda, Ken'Ichi Nomoto, Nozomu Tominaga, Friedrich Karl Thielemann, W. Raphael Hix

Theoretical and Computational Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

8 Scopus citations

Abstract

The influence of a large variation of Y_e on explosive yield is investigated. We calculate nucleosynthesis with the initial electron fraction Y_e ranging from 0.48 to 0.58 in explosive Si burning region in Population III, 25 M_⊙ supernovae. We obtain the significant overproduction of odd elements, K and Sc. In the Y_e < 0.5 cases light p-process nuclei are enhanced. We find that the abundance pattern taken from arbitrary mixture of each nucleosynthesis yield in various values of Y _e can reasonably explain that in observed extremely metal-poor stars.

Original language	English
Title of host publication	ORIGIN OF MATTER AND EVOLUTION OF GALAXIES
Subtitle of host publication	International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology
Pages	409-411
Number of pages	3
DOIs	https://doi.org/10.1063/1.2234441
State	Published - 2006
Event	ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology - Tokyo, Japan Duration: Nov 8 2005 → Nov 11 2005

Publication series

Name	AIP Conference Proceedings
Volume	847
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology
Country/Territory	Japan
City	Tokyo
Period	11/8/05 → 11/11/05

Keywords

Abundances
Nuclear reactions
Nucleosynthesis
Supernovae

Access to Document

10.1063/1.2234441

Cite this

Iwamoto, N., Umeda, H., Nomoto, KI., Tominaga, N., Thielemann, F. K., & Hix, W. R. (2006). Explosive nucleosynthesis in different Y_e conditions. In ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology (pp. 409-411). (AIP Conference Proceedings; Vol. 847). https://doi.org/10.1063/1.2234441

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title = "Explosive nucleosynthesis in different Ye conditions",

abstract = "The influence of a large variation of Ye on explosive yield is investigated. We calculate nucleosynthesis with the initial electron fraction Ye ranging from 0.48 to 0.58 in explosive Si burning region in Population III, 25 M⊙ supernovae. We obtain the significant overproduction of odd elements, K and Sc. In the Ye < 0.5 cases light p-process nuclei are enhanced. We find that the abundance pattern taken from arbitrary mixture of each nucleosynthesis yield in various values of Y e can reasonably explain that in observed extremely metal-poor stars.",

keywords = "Abundances, Nuclear reactions, Nucleosynthesis, Supernovae",

author = "Nobuyuki Iwamoto and Hideyuki Umeda and Ken'Ichi Nomoto and Nozomu Tominaga and Thielemann, {Friedrich Karl} and Hix, {W. Raphael}",

year = "2006",

doi = "10.1063/1.2234441",

language = "English",

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series = "AIP Conference Proceedings",

pages = "409--411",

booktitle = "ORIGIN OF MATTER AND EVOLUTION OF GALAXIES",

note = "ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology ; Conference date: 08-11-2005 Through 11-11-2005",

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Iwamoto, N, Umeda, H, Nomoto, KI, Tominaga, N, Thielemann, FK & Hix, WR 2006, Explosive nucleosynthesis in different Y_e conditions. in ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology. AIP Conference Proceedings, vol. 847, pp. 409-411, ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology, Tokyo, Japan, 11/8/05. https://doi.org/10.1063/1.2234441

Explosive nucleosynthesis in different Y_e conditions. / Iwamoto, Nobuyuki; Umeda, Hideyuki; Nomoto, Ken'Ichi et al.
ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Horizon of Nuclear Astrophysics and Cosmology. 2006. p. 409-411 (AIP Conference Proceedings; Vol. 847).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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