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Impact of the New Measurement of the 12C + 12C Fusion Cross Section on the Final Compactness of Massive Stars

Journal
Date Issued
2021
Author(s)
•
•
•
La Cognata, Marco
•
Lamia, Livio
•
Palmerini, Sara
•
Pizzone, Rosario Gianluca
•
Spartà, Roberta
•
Tumino, Aurora
DOI
Abstract
We discuss how the new measurement of the 12C + 12C fusion cross section carried out with the Trojan Horse Method affects the compactness of a star, i.e., basically the binding energy of the inner mantle, at the onset of the core collapse. In particular, we find that this new cross section significantly changes the dependence of the compactness on the initial mass with respect to previous findings obtained in Chieffi & Limongi by adopting the classical cross section provided by Caughlan & Fowler. A non-monotonic but well-defined behavior is also confirmed in this case and no scatter of the compactness around the main trend is found. Such an occurrence could impact the possible explodability of the stars.
Volume
916
Issue
2
Start page
79
Uri
Url
Issn Identifier
0004-637X
Ads BibCode
2021ApJ...916...79C
Rights
open.access
File(s)
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