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http://hdl.handle.net/20.500.12386/35018
Title: | Evolution and Final Fate of Solar Metallicity Stars in the Mass Range 7-15 M <inf>⊙</inf>. I. The Transition from Asymptotic Giant Branch to Super-AGB Stars, Electron Capture, and Core-collapse Supernova Progenitors | Authors: | LIMONGI, Marco ROBERTI, LORENZO CHIEFFI, ALESSANDRO Nomoto, Ken’ichi |
Issue Date: | 2024 | Journal: | ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES | Number: | 270 | Issue: | 2 | First Page: | 29 | Abstract: | According to a standard initial mass function, stars in the range 7-12 M ⊙ constitute ∼50% (by number) of the stars more massive than ∼7 M ⊙, but in spite of this, their evolutionary properties, and in particular their final fate, are still scarcely studied. In this paper, we present a detailed study of the evolutionary properties of solar metallicity nonrotating stars in the range 7-15 M ⊙, from the pre-main-sequence phase up to the presupernova stage or an advanced stage of the thermally pulsing phase, depending on the initial mass. We find that (1) the 7.00 M ⊙ star develops a degenerate CO core and evolves as a classical asymptotic giant branch (AGB) star in the sense that it does not ignite the C-burning reactions, (2) stars with initial mass M ≥ 9.22 M ⊙ end their lives as core-collapse supernovae, (3) stars in the range 7.50 ≤ M/M ⊙ ≤ 9.20 develop a degenerate ONeMg core and evolve through the thermally pulsing super-AGB phase, (4) stars in the mass range 7.50 ≤ M/M ⊙ ≤ 8.00 end their lives as hybrid CO/ONeMg or ONeMg WDs, and (5) stars with initial mass in the range 8.50 ≤ M/M ⊙ ≤ 9.20 may potentially explode as electron-capture supernovae. | URI: | http://hdl.handle.net/20.500.12386/35018 | URL: | https://iopscience.iop.org/article/10.3847/1538-4365/ad12c1 https://api.elsevier.com/content/abstract/scopus_id/85183657339 |
ISSN: | 0365-0138 | DOI: | 10.3847/1538-4365/ad12c1 | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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2024ApJS_270_29part1.pdf | Articolo Prima Parte | 10 MB | Adobe PDF | View/Open |
2024ApJS_270_29part2.pdf | Articolo Seconda Parte | 7.18 MB | Adobe PDF | View/Open |
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