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Explosive nucleosynthesis in core-collapse supernovae and the titanium problem

Eichler, M. ; Perego, A. ; Hempel, M. ; Fröhlich, C. ; Ebinger, K. ; Casanova, J. ; Liebendörfer, M. ; Thielemann, F.-K. (2018)
Explosive nucleosynthesis in core-collapse supernovae and the titanium problem.
In: Journal of Physics: Conference Series, 940 (1)
doi: 10.1088/1742-6596/940/1/012040
Article, Bibliographie

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Abstract

Based on a new mechanism to drive spherically symmetric core-collapse supernovae, PUSH, we perform full network nucleosynthesis calculations for different progenitors. While the ⁵⁶⁻⁵⁸Ni yields match the observational data very well for certain progenitors, the ejected titanium masses in our calculations are lower than the values inferred from observations. We demonstrate the dependence of ejecta composition on the progenitor structure and the mass cut. Furthermore, we discuss possible solutions to the well-known problem of titanium underproduction.

Item Type: Article
Erschienen: 2018
Creators: Eichler, M. ; Perego, A. ; Hempel, M. ; Fröhlich, C. ; Ebinger, K. ; Casanova, J. ; Liebendörfer, M. ; Thielemann, F.-K.
Type of entry: Bibliographie
Title: Explosive nucleosynthesis in core-collapse supernovae and the titanium problem
Language: English
Date: 2018
Place of Publication: Bristol
Publisher: IOP Publishing
Journal or Publication Title: Journal of Physics: Conference Series
Volume of the journal: 940
Issue Number: 1
Collation: 3 Seiten
DOI: 10.1088/1742-6596/940/1/012040
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Abstract:

Based on a new mechanism to drive spherically symmetric core-collapse supernovae, PUSH, we perform full network nucleosynthesis calculations for different progenitors. While the ⁵⁶⁻⁵⁸Ni yields match the observational data very well for certain progenitors, the ejected titanium masses in our calculations are lower than the values inferred from observations. We demonstrate the dependence of ejecta composition on the progenitor structure and the mass cut. Furthermore, we discuss possible solutions to the well-known problem of titanium underproduction.

Identification Number: Artikel-ID: 012040
Additional Information:

Nuclear Physics in Astrophysics Conference (NPA VII) 18–22 May 2015, York, UK

Classification DDC: 500 Science and mathematics > 530 Physics
Divisions: 05 Department of Physics
05 Department of Physics > Institute of Nuclear Physics
Date Deposited: 17 May 2024 10:34
Last Modified: 17 May 2024 10:34
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