Initial Shock Waves for Explosive Nucleosynthesis in Type II Supernova | Zendy

Shigehiro Nagataki | Zendy; Masaaki Hashimoto | Zendy; Shoichi Yamada | Zendy

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Initial Shock Waves for Explosive Nucleosynthesis in Type II Supernova

Author(s) -

Shigehiro Nagataki,

Masaaki Hashimoto,

Shoichi Yamada

Publication year - 1998

Publication title -

publications of the astronomical society of japan

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.99

H-Index - 110

eISSN - 2053-051X

pISSN - 0004-6264

DOI - 10.1093/pasj/50.1.67

Subject(s) - nucleosynthesis , physics , supernova , ejecta , explosive material , astrophysics , stellar nucleosynthesis , shock wave , kinetic energy , type ii supernova , shock (circulatory) , supernova remnant , stellar evolution , nuclear fusion , astronomy , stars , nuclear physics , mechanics , classical mechanics , medicine , chemistry , organic chemistry

We have performed 1-dimensional calculations for explosive nucleosynthesis incollapse-driven supernova and investigated its sensitivity to the initial formof the shock wave. We have found the tendency that the peak temperature becomeshigher around the mass cut if the input energy is injected more in the form ofkinetic energy rather than internal energy. Then, the mass cut becomes larger,and, as a result, neutron-rich matter is less included in the ejecta; this isfavorable for producing the observational data compared with a previous model.Our results imply that the standard method to treat various processes forstellar evolution, such as convection and electron capture during the siliconburning stage, are still compatible with the calculation of explosivenucleosynthesis.Comment: 20 pages, 6 figures, LaTe

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