Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/35033
Title: | Explosion Mechanism of Core-collapse Supernovae: Role of the Si/Si-O Interface | Authors: | Boccioli, Luca ROBERTI, LORENZO LIMONGI, Marco Mathews, Grant J. CHIEFFI, ALESSANDRO |
Issue Date: | 2023 | Journal: | THE ASTROPHYSICAL JOURNAL | Number: | 949 | Issue: | 1 | First Page: | 17 | Abstract: | We present a simple criterion to predict the explodability of massive stars based on the density and entropy profiles before collapse. If a pronounced density jump is present near the Si/Si-O interface, the star will likely explode. We develop a quantitative criterion by using ∼1300 1D simulations where ν-driven turbulence is included via time-dependent mixing-length theory. This criterion correctly identifies the outcome of the supernova more than 90% of the time. We also find no difference in how this criterion performs on two different sets of progenitors, evolved using two different stellar evolution codes: FRANEC and KEPLER. The explodability as a function of mass of the two sets of progenitors is very different, showing: (i) that uncertainties in the stellar evolution prescriptions influence the predictions of supernova explosions; (ii) the most important properties of the pre-collapse progenitor that influence the explodability are its density and entropy profiles. We highlight the importance that ν-driven turbulence plays in the explosion by comparing our results to previous works. | URI: | http://hdl.handle.net/20.500.12386/35033 | URL: | https://iopscience.iop.org/article/10.3847/1538-4357/acc06a https://api.elsevier.com/content/abstract/scopus_id/85160326773 |
ISSN: | 0004-637X | DOI: | 10.3847/1538-4357/acc06a | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
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2023ApJ_949_17.pdf | PDF editoriale | 3.44 MB | Adobe PDF | View/Open |
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