What question did this study set out to answer?

This research aims to understand how uncertainties in nuclear reaction rates affect iron-group nuclide production during core-collapse supernovae.

January 23, 2026Monthly Notices of the Royal Astronomical SocietyOpen Access

Uncertainties in the production of iron-group nuclides in core-collapse supernovae from Monte Carlo variations of reaction rates

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This research aims to understand how uncertainties in nuclear reaction rates affect iron-group nuclide production during core-collapse supernovae.
Development of a Monte Carlo-based nucleosynthesis code to address reaction rate uncertainties
Application of 1D explosion models with varying progenitor metallicities and masses
Detailed post-process nucleosynthesis calculations
Monte Carlo analyses to identify key nuclear reactions influencing abundance predictions
Most nuclear reactions had minimal impact on iron-group nuclide production.
A few key reactions were identified as significantly influencing the synthesis of radioactive nuclei.
The study confirmed several traditional nuclear reactions had a strong effect on producing 44Ti.
Conclusions cannot rely on a single reaction rate due to the complexity of the processes involved.

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Implication

This investigation analyzes reaction rate uncertainties impacting iron-group nuclide production in core-collapse supernovae, suggesting significant effects on observable outcomes.

Cite This Study

Nishimura et al. (2026) studied this question.

synapsesocial.com/papers/69730f78c8125b09b0d1f488 https://doi.org/10.1093/mnras/stag152

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Implication

This investigation analyzes reaction rate uncertainties impacting iron-group nuclide production in core-collapse supernovae, suggesting significant effects on observable outcomes.

Uncertainties in the production of iron-group nuclides in core-collapse supernovae from Monte Carlo variations of reaction rates

Key Points

Discussion

Implication

Cite This Study

Uncertainties in the production of iron-group nuclides in core-collapse supernovae from Monte Carlo variations of reaction rates

Key Points

Discussion

Implication

Cite This Study

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