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Discovery of an exceptionally strong β-decay transition of 20 F and implications for the fate of intermediate-mass stars
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| Veröffentlicht in: | Physical review letters 123(2019,26) Artikel-Nummer 262701, 6 Seiten |
|---|---|
| Personen und Körperschaften: | , |
| Titel: | Discovery of an exceptionally strong β-decay transition of 20 F and implications for the fate of intermediate-mass stars/ O.S. Kirsebom, S. Jones, D.F. Strömberg, G. Martínez-Pinedo, K. Langanke, F.K. Röpke, B.A. Brown, T. Eronen, H.O.U. Fynbo, M. Hukkanen, A. Idini, A. Jokinen, A. Kankainen, J. Kostensalo, I. Moore, H. Möller, S.T. Ohlmann, H. Penttilä, K. Riisager, S. Rinta-Antila, P.C. Srivastava, J. Suhonen, W.H. Trzaska, and J. Äystö |
| Format: | E-Book-Kapitel |
| Sprache: | Englisch |
| veröffentlicht: |
24 December 2019
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| Gesamtaufnahme: |
: Physical review letters, 123(2019,26) Artikel-Nummer 262701, 6 Seiten
, volume:123 |
| Quelle: | Verbunddaten SWB Lizenzfreie Online-Ressourcen |
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| 245 | 1 | 0 | |a Discovery of an exceptionally strong β-decay transition of 20 F and implications for the fate of intermediate-mass stars |c O.S. Kirsebom, S. Jones, D.F. Strömberg, G. Martínez-Pinedo, K. Langanke, F.K. Röpke, B.A. Brown, T. Eronen, H.O.U. Fynbo, M. Hukkanen, A. Idini, A. Jokinen, A. Kankainen, J. Kostensalo, I. Moore, H. Möller, S.T. Ohlmann, H. Penttilä, K. Riisager, S. Rinta-Antila, P.C. Srivastava, J. Suhonen, W.H. Trzaska, and J. Äystö |
| 246 | 3 | 3 | |a Discovery of an exceptionally strong beta-decay transition of twenty F and implications for the fate of intermediate-mass stars |
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| 520 | |a A significant fraction of stars between 7 and 11 solar masses are thought to become supernovae, but the explosion mechanism is unclear. The answer depends critically on the rate of electron capture on 20Ne in the degenerate oxygen-neon stellar core. However, because of the unknown strength of the transition between the ground states of 20Ne and 20F, it has not previously been possible to fully constrain the rate. By measuring the transition, we establish that its strength is exceptionally large and that it enhances the capture rate by several orders of magnitude. This has a decisive impact on the evolution of the core, increasing the likelihood that the star is (partially) disrupted by a thermonuclear explosion rather than collapsing to form a neutron star. Importantly, our measurement resolves the last remaining nuclear physics uncertainty in the final evolution of degenerate oxygen-neon stellar cores, allowing future studies to address the critical role of convection, which at present is poorly understood. | ||
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| contents | A significant fraction of stars between 7 and 11 solar masses are thought to become supernovae, but the explosion mechanism is unclear. The answer depends critically on the rate of electron capture on 20Ne in the degenerate oxygen-neon stellar core. However, because of the unknown strength of the transition between the ground states of 20Ne and 20F, it has not previously been possible to fully constrain the rate. By measuring the transition, we establish that its strength is exceptionally large and that it enhances the capture rate by several orders of magnitude. This has a decisive impact on the evolution of the core, increasing the likelihood that the star is (partially) disrupted by a thermonuclear explosion rather than collapsing to form a neutron star. Importantly, our measurement resolves the last remaining nuclear physics uncertainty in the final evolution of degenerate oxygen-neon stellar cores, allowing future studies to address the critical role of convection, which at present is poorly understood. |
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| spelling | Kirsebom, Oliver S. VerfasserIn (DE-588)1204440964 (DE-627)1689739584 aut, Discovery of an exceptionally strong β-decay transition of 20 F and implications for the fate of intermediate-mass stars O.S. Kirsebom, S. Jones, D.F. Strömberg, G. Martínez-Pinedo, K. Langanke, F.K. Röpke, B.A. Brown, T. Eronen, H.O.U. Fynbo, M. Hukkanen, A. Idini, A. Jokinen, A. Kankainen, J. Kostensalo, I. Moore, H. Möller, S.T. Ohlmann, H. Penttilä, K. Riisager, S. Rinta-Antila, P.C. Srivastava, J. Suhonen, W.H. Trzaska, and J. Äystö, Discovery of an exceptionally strong beta-decay transition of twenty F and implications for the fate of intermediate-mass stars, 24 December 2019, 6, Text txt rdacontent, Computermedien c rdamedia, Online-Ressource cr rdacarrier, Im Titel ist 20 hochgestellt, Gesehen am 11.02.2020, A significant fraction of stars between 7 and 11 solar masses are thought to become supernovae, but the explosion mechanism is unclear. The answer depends critically on the rate of electron capture on 20Ne in the degenerate oxygen-neon stellar core. However, because of the unknown strength of the transition between the ground states of 20Ne and 20F, it has not previously been possible to fully constrain the rate. By measuring the transition, we establish that its strength is exceptionally large and that it enhances the capture rate by several orders of magnitude. This has a decisive impact on the evolution of the core, increasing the likelihood that the star is (partially) disrupted by a thermonuclear explosion rather than collapsing to form a neutron star. Importantly, our measurement resolves the last remaining nuclear physics uncertainty in the final evolution of degenerate oxygen-neon stellar cores, allowing future studies to address the critical role of convection, which at present is poorly understood., Röpke, Friedrich 1974- VerfasserIn (DE-588)128587024 (DE-627)376258608 (DE-576)297228757 aut, Enthalten in Physical review letters College Park, Md. : APS, 1958 123(2019,26) Artikel-Nummer 262701, 6 Seiten Online-Ressource (DE-627)268756899 (DE-600)1472655-5 (DE-576)077609441 1079-7114 nnns, volume:123 year:2019 number:26 pages:262701 extent:6, https://doi.org/10.1103/PhysRevLett.123.262701 Verlag Resolving-System kostenfrei Volltext, https://link.aps.org/doi/10.1103/PhysRevLett.123.262701 Verlag, https://doi.org/10.1103/PhysRevLett.123.262701 LFER, https://link.aps.org/doi/10.1103/PhysRevLett.123.262701 LFER, LFER 2020-05-04T09:20:43Z |
| spellingShingle | Kirsebom, Oliver S., Röpke, Friedrich, Discovery of an exceptionally strong β-decay transition of 20 F and implications for the fate of intermediate-mass stars, A significant fraction of stars between 7 and 11 solar masses are thought to become supernovae, but the explosion mechanism is unclear. The answer depends critically on the rate of electron capture on 20Ne in the degenerate oxygen-neon stellar core. However, because of the unknown strength of the transition between the ground states of 20Ne and 20F, it has not previously been possible to fully constrain the rate. By measuring the transition, we establish that its strength is exceptionally large and that it enhances the capture rate by several orders of magnitude. This has a decisive impact on the evolution of the core, increasing the likelihood that the star is (partially) disrupted by a thermonuclear explosion rather than collapsing to form a neutron star. Importantly, our measurement resolves the last remaining nuclear physics uncertainty in the final evolution of degenerate oxygen-neon stellar cores, allowing future studies to address the critical role of convection, which at present is poorly understood. |
| title | Discovery of an exceptionally strong β-decay transition of 20 F and implications for the fate of intermediate-mass stars |
| title_alt | Discovery of an exceptionally strong beta-decay transition of twenty F and implications for the fate of intermediate-mass stars |
| title_auth | Discovery of an exceptionally strong β-decay transition of 20 F and implications for the fate of intermediate-mass stars |
| title_full | Discovery of an exceptionally strong β-decay transition of 20 F and implications for the fate of intermediate-mass stars O.S. Kirsebom, S. Jones, D.F. Strömberg, G. Martínez-Pinedo, K. Langanke, F.K. Röpke, B.A. Brown, T. Eronen, H.O.U. Fynbo, M. Hukkanen, A. Idini, A. Jokinen, A. Kankainen, J. Kostensalo, I. Moore, H. Möller, S.T. Ohlmann, H. Penttilä, K. Riisager, S. Rinta-Antila, P.C. Srivastava, J. Suhonen, W.H. Trzaska, and J. Äystö |
| title_fullStr | Discovery of an exceptionally strong β-decay transition of 20 F and implications for the fate of intermediate-mass stars O.S. Kirsebom, S. Jones, D.F. Strömberg, G. Martínez-Pinedo, K. Langanke, F.K. Röpke, B.A. Brown, T. Eronen, H.O.U. Fynbo, M. Hukkanen, A. Idini, A. Jokinen, A. Kankainen, J. Kostensalo, I. Moore, H. Möller, S.T. Ohlmann, H. Penttilä, K. Riisager, S. Rinta-Antila, P.C. Srivastava, J. Suhonen, W.H. Trzaska, and J. Äystö |
| title_full_unstemmed | Discovery of an exceptionally strong β-decay transition of 20 F and implications for the fate of intermediate-mass stars O.S. Kirsebom, S. Jones, D.F. Strömberg, G. Martínez-Pinedo, K. Langanke, F.K. Röpke, B.A. Brown, T. Eronen, H.O.U. Fynbo, M. Hukkanen, A. Idini, A. Jokinen, A. Kankainen, J. Kostensalo, I. Moore, H. Möller, S.T. Ohlmann, H. Penttilä, K. Riisager, S. Rinta-Antila, P.C. Srivastava, J. Suhonen, W.H. Trzaska, and J. Äystö |
| title_in_hierarchy | Discovery of an exceptionally strong β-decay transition of 20 F and implications for the fate of intermediate-mass stars / O.S. Kirsebom, S. Jones, D.F. Strömberg, G. Martínez-Pinedo, K. Langanke, F.K. Röpke, B.A. Brown, T. Eronen, H.O.U. Fynbo, M. Hukkanen, A. Idini, A. Jokinen, A. Kankainen, J. Kostensalo, I. Moore, H. Möller, S.T. Ohlmann, H. Penttilä, K. Riisager, S. Rinta-Antila, P.C. Srivastava, J. Suhonen, W.H. Trzaska, and J. Äystö, |
| title_short | Discovery of an exceptionally strong β-decay transition of 20 F and implications for the fate of intermediate-mass stars |
| title_sort | discovery of an exceptionally strong β decay transition of 20 f and implications for the fate of intermediate mass stars |
| url | https://doi.org/10.1103/PhysRevLett.123.262701, https://link.aps.org/doi/10.1103/PhysRevLett.123.262701 |