Progenitor with small reaction networks should not be used as initial conditions for core collapse

Autor:	Renzo, M., Goldberg, J. A., Grichener, A., Gottlieb, O., Cantiello, M.
Rok vydání:	2024
Předmět:	Astrophysics - Solar and Stellar Astrophysics Astrophysics - High Energy Astrophysical Phenomena
Druh dokumentu:	Working Paper
Popis:	Core collapse initial conditions are a bottleneck in understanding the explosion mechanism(s) of massive stars. Stellar evolution codes struggle after carbon burning, and either stop or adopt numerical simplifications missing crucial physics. The use of small nuclear reaction networks (NRN) that account for energy production but bypass weak reactions is typical, but insufficient to study the dynamics of the collapse. We advise against the use of progenitors computed with small NRN in expensive multi-dimensional simulations of core collapse, bounce, (jet formation), and explosion. Comment: accepted by RNAAS, input/output available at https://doi.org/10.5281/zenodo.11375523, code at https://github.com/mathren/CHE_net_comparison
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2406.02590 Zobrazit plný text záznamu View this record from Arxiv