The intermediate neutron-capture process in AGB stars
The intermediate neutron-capture process is thought to arise when protons are mixed in a convective helium-burning zone. This can happen during the early Thermally-Pulsing (TP) Asymptotic Giant Branch (AGB) phase of low-mass, low-metallicity stars. After discussing the differences between the s- and...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2023/05/epjconf_npa-x2023_07001.pdf |
| _version_ | 1797850775448190976 |
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| author | Choplin Arthur Siess Lionel Goriely Stephane |
| author_facet | Choplin Arthur Siess Lionel Goriely Stephane |
| author_sort | Choplin Arthur |
| collection | DOAJ |
| description | The intermediate neutron-capture process is thought to arise when protons are mixed in a convective helium-burning zone. This can happen during the early Thermally-Pulsing (TP) Asymptotic Giant Branch (AGB) phase of low-mass, low-metallicity stars. After discussing the differences between the s- and i-processes in AGB stars, we highlight some critical (n, γ) reactions for i-process nucleosynthesis that may be experimentally constrained by the β-Oslo method. We then compare our s- and i-process nucleosynthesis predictions to the abundances of the Carbon-Enhanced Metal-Poor star HE2258-6358, which shows a composition pattern midway between the s- and r-process. |
| first_indexed | 2024-04-09T19:05:48Z |
| format | Article |
| id | doaj.art-625fe2692f354c0784e451dc9605b9ea |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-04-09T19:05:48Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-625fe2692f354c0784e451dc9605b9ea2023-04-07T09:02:03ZengEDP SciencesEPJ Web of Conferences2100-014X2023-01-012790700110.1051/epjconf/202327907001epjconf_npa-x2023_07001The intermediate neutron-capture process in AGB starsChoplin Arthur0Siess Lionel1Goriely Stephane2Institut d’Astronomie et d’Astrophysique, Université Libre de Bruxelles (ULB), CP 226Institut d’Astronomie et d’Astrophysique, Université Libre de Bruxelles (ULB), CP 226Institut d’Astronomie et d’Astrophysique, Université Libre de Bruxelles (ULB), CP 226The intermediate neutron-capture process is thought to arise when protons are mixed in a convective helium-burning zone. This can happen during the early Thermally-Pulsing (TP) Asymptotic Giant Branch (AGB) phase of low-mass, low-metallicity stars. After discussing the differences between the s- and i-processes in AGB stars, we highlight some critical (n, γ) reactions for i-process nucleosynthesis that may be experimentally constrained by the β-Oslo method. We then compare our s- and i-process nucleosynthesis predictions to the abundances of the Carbon-Enhanced Metal-Poor star HE2258-6358, which shows a composition pattern midway between the s- and r-process.https://www.epj-conferences.org/articles/epjconf/pdf/2023/05/epjconf_npa-x2023_07001.pdf |
| spellingShingle | Choplin Arthur Siess Lionel Goriely Stephane The intermediate neutron-capture process in AGB stars EPJ Web of Conferences |
| title | The intermediate neutron-capture process in AGB stars |
| title_full | The intermediate neutron-capture process in AGB stars |
| title_fullStr | The intermediate neutron-capture process in AGB stars |
| title_full_unstemmed | The intermediate neutron-capture process in AGB stars |
| title_short | The intermediate neutron-capture process in AGB stars |
| title_sort | intermediate neutron capture process in agb stars |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2023/05/epjconf_npa-x2023_07001.pdf |
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