Nucleosynthesis in a massive star associated with magnetohydrodynamical jets from collapsars

Journal Article · Mon Nov 12 00:00:00 EST 2012 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4763437· OSTI ID:22075781

Ono, M; Hashimoto, M; Fujimoto, S; Kotake, K; Yamada, S ^[1]

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1. Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan and Department of Physics, Kyushu University, Fukuoka 812-8581 (Japan)

We investigate the nucleosynthesis during the stellar evolution and the jet-like supernova explosion of a massive star of 70 M{sub Circled-Dot-Operator} having the solar metallicity in the main sequence stage. The nucleosynthesis calculations have been performed with large nuclear reaction networks, where the weak s-, p-, and r-processes are taken into account. As a result s-elements of 60 > A > 90 and r-elements of 90 > A > 160 are highly overproduced relative to the solar system abundances. We find that the Sr-Y-Zr isotopes are primarily synthesized in the explosive nucleosynthesis which could be one of the sites of the lighter element primary process (LEPP).

• OSTI ID: 22075781
• Journal Information: AIP Conference Proceedings, Vol. 1484, Issue 1; Conference: Conference on origin of matter and evolution of galaxies 2011, Wako (Japan), 14-17 Nov 2011; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ASTROPHYSICS
BLACK HOLES
ELEMENT ABUNDANCE
EXPLOSIONS
INTERMEDIATE MASS NUCLEI
JETS
MAGNETOHYDRODYNAMICS
MASS
NUCLEAR REACTIONS
NUCLEOSYNTHESIS
R PROCESS
S PROCESS
SOLAR SYSTEM
STRONTIUM ISOTOPES
SUPERNOVAE
YTTRIUM ISOTOPES
ZIRCONIUM ISOTOPES