Short-lived 244Pu points to compact binary mergers as sites for heavy r-process nucleosynthesis
The origin of heavy elements produced through rapid neutron capture ('r-process') by seed nuclei is one of the current nucleosynthesis mysteries. Core collapse supernovae (cc-SNe) and compact binary mergers are considered as possible sites. The first produces small amounts of material at a...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Kenta Hotokezaka [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2015 |
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| Übergeordnetes Werk: |
Enthalten in: Nature physics - Basingstoke : Nature Publishing Group, 2005, 11(2015), 12, Seite 1042 |
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| Übergeordnetes Werk: |
volume:11 ; year:2015 ; number:12 ; pages:1042 |
| Links: |
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| DOI / URN: |
10.1038/nphys3574 |
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OLC1974314626 |
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| 520 | |a The origin of heavy elements produced through rapid neutron capture ('r-process') by seed nuclei is one of the current nucleosynthesis mysteries. Core collapse supernovae (cc-SNe) and compact binary mergers are considered as possible sites. The first produces small amounts of material at a high event rate whereas the latter produces large amounts in rare events. Radioactive elements with the right lifetime can break the degeneracy between high-rate/low-yield and low-rate/high-yield scenarios. Among radioactive elements, most interesting is 244Pu (half-life of 81 million years), for which both the current accumulation of live 244Pu particles accreted via interstellar particles in the Earth's deep-sea floor and the Early Solar System (ESS) abundances have been measured. Interestingly, the estimated 244Pu abundance in the current interstellar medium inferred from deep-sea measurements is significantly lower than that corresponding to the ESS measurements. Here we show that both the current and ESS abundances of 244Pu are naturally explained within the low-rate/high-yield scenario. The inferred event rate remarkably agrees with compact binary merger rates estimated from Galactic neutron star binaries and from short gamma-ray bursts. Furthermore, the ejected mass of r-process elements per event agrees with both theoretica and observational macronova/kilonova estimates. | ||
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10.1038/nphys3574 doi PQ20160430 (DE-627)OLC1974314626 (DE-599)GBVOLC1974314626 (PRQ)p575-a7c47303ef560636a4aea0e9b1ed3c656fc1b8230af62b8d859d276df66ecbee0 (KEY)0590766720150000011001201042shortlived244pupointstocompactbinarymergersassites DE-627 ger DE-627 rakwb eng 530 DNB 33.00 bkl Kenta Hotokezaka verfasserin aut Short-lived 244Pu points to compact binary mergers as sites for heavy r-process nucleosynthesis 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The origin of heavy elements produced through rapid neutron capture ('r-process') by seed nuclei is one of the current nucleosynthesis mysteries. Core collapse supernovae (cc-SNe) and compact binary mergers are considered as possible sites. The first produces small amounts of material at a high event rate whereas the latter produces large amounts in rare events. Radioactive elements with the right lifetime can break the degeneracy between high-rate/low-yield and low-rate/high-yield scenarios. Among radioactive elements, most interesting is 244Pu (half-life of 81 million years), for which both the current accumulation of live 244Pu particles accreted via interstellar particles in the Earth's deep-sea floor and the Early Solar System (ESS) abundances have been measured. Interestingly, the estimated 244Pu abundance in the current interstellar medium inferred from deep-sea measurements is significantly lower than that corresponding to the ESS measurements. Here we show that both the current and ESS abundances of 244Pu are naturally explained within the low-rate/high-yield scenario. The inferred event rate remarkably agrees with compact binary merger rates estimated from Galactic neutron star binaries and from short gamma-ray bursts. Furthermore, the ejected mass of r-process elements per event agrees with both theoretica and observational macronova/kilonova estimates. Neutron stars Double stars Astrophysics Radioactive materials Tsvi Piran oth Michael Paul oth Enthalten in Nature physics Basingstoke : Nature Publishing Group, 2005 11(2015), 12, Seite 1042 (DE-627)503328537 (DE-600)2210466-5 (DE-576)251841693 1745-2473 nnns volume:11 year:2015 number:12 pages:1042 http://dx.doi.org/10.1038/nphys3574 Volltext http://search.proquest.com/docview/1766115185 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_70 GBV_ILN_170 GBV_ILN_2185 33.00 AVZ AR 11 2015 12 1042 |
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10.1038/nphys3574 doi PQ20160430 (DE-627)OLC1974314626 (DE-599)GBVOLC1974314626 (PRQ)p575-a7c47303ef560636a4aea0e9b1ed3c656fc1b8230af62b8d859d276df66ecbee0 (KEY)0590766720150000011001201042shortlived244pupointstocompactbinarymergersassites DE-627 ger DE-627 rakwb eng 530 DNB 33.00 bkl Kenta Hotokezaka verfasserin aut Short-lived 244Pu points to compact binary mergers as sites for heavy r-process nucleosynthesis 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The origin of heavy elements produced through rapid neutron capture ('r-process') by seed nuclei is one of the current nucleosynthesis mysteries. Core collapse supernovae (cc-SNe) and compact binary mergers are considered as possible sites. The first produces small amounts of material at a high event rate whereas the latter produces large amounts in rare events. Radioactive elements with the right lifetime can break the degeneracy between high-rate/low-yield and low-rate/high-yield scenarios. Among radioactive elements, most interesting is 244Pu (half-life of 81 million years), for which both the current accumulation of live 244Pu particles accreted via interstellar particles in the Earth's deep-sea floor and the Early Solar System (ESS) abundances have been measured. Interestingly, the estimated 244Pu abundance in the current interstellar medium inferred from deep-sea measurements is significantly lower than that corresponding to the ESS measurements. Here we show that both the current and ESS abundances of 244Pu are naturally explained within the low-rate/high-yield scenario. The inferred event rate remarkably agrees with compact binary merger rates estimated from Galactic neutron star binaries and from short gamma-ray bursts. Furthermore, the ejected mass of r-process elements per event agrees with both theoretica and observational macronova/kilonova estimates. Neutron stars Double stars Astrophysics Radioactive materials Tsvi Piran oth Michael Paul oth Enthalten in Nature physics Basingstoke : Nature Publishing Group, 2005 11(2015), 12, Seite 1042 (DE-627)503328537 (DE-600)2210466-5 (DE-576)251841693 1745-2473 nnns volume:11 year:2015 number:12 pages:1042 http://dx.doi.org/10.1038/nphys3574 Volltext http://search.proquest.com/docview/1766115185 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_70 GBV_ILN_170 GBV_ILN_2185 33.00 AVZ AR 11 2015 12 1042 |
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10.1038/nphys3574 doi PQ20160430 (DE-627)OLC1974314626 (DE-599)GBVOLC1974314626 (PRQ)p575-a7c47303ef560636a4aea0e9b1ed3c656fc1b8230af62b8d859d276df66ecbee0 (KEY)0590766720150000011001201042shortlived244pupointstocompactbinarymergersassites DE-627 ger DE-627 rakwb eng 530 DNB 33.00 bkl Kenta Hotokezaka verfasserin aut Short-lived 244Pu points to compact binary mergers as sites for heavy r-process nucleosynthesis 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The origin of heavy elements produced through rapid neutron capture ('r-process') by seed nuclei is one of the current nucleosynthesis mysteries. Core collapse supernovae (cc-SNe) and compact binary mergers are considered as possible sites. The first produces small amounts of material at a high event rate whereas the latter produces large amounts in rare events. Radioactive elements with the right lifetime can break the degeneracy between high-rate/low-yield and low-rate/high-yield scenarios. Among radioactive elements, most interesting is 244Pu (half-life of 81 million years), for which both the current accumulation of live 244Pu particles accreted via interstellar particles in the Earth's deep-sea floor and the Early Solar System (ESS) abundances have been measured. Interestingly, the estimated 244Pu abundance in the current interstellar medium inferred from deep-sea measurements is significantly lower than that corresponding to the ESS measurements. Here we show that both the current and ESS abundances of 244Pu are naturally explained within the low-rate/high-yield scenario. The inferred event rate remarkably agrees with compact binary merger rates estimated from Galactic neutron star binaries and from short gamma-ray bursts. Furthermore, the ejected mass of r-process elements per event agrees with both theoretica and observational macronova/kilonova estimates. Neutron stars Double stars Astrophysics Radioactive materials Tsvi Piran oth Michael Paul oth Enthalten in Nature physics Basingstoke : Nature Publishing Group, 2005 11(2015), 12, Seite 1042 (DE-627)503328537 (DE-600)2210466-5 (DE-576)251841693 1745-2473 nnns volume:11 year:2015 number:12 pages:1042 http://dx.doi.org/10.1038/nphys3574 Volltext http://search.proquest.com/docview/1766115185 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_70 GBV_ILN_170 GBV_ILN_2185 33.00 AVZ AR 11 2015 12 1042 |
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10.1038/nphys3574 doi PQ20160430 (DE-627)OLC1974314626 (DE-599)GBVOLC1974314626 (PRQ)p575-a7c47303ef560636a4aea0e9b1ed3c656fc1b8230af62b8d859d276df66ecbee0 (KEY)0590766720150000011001201042shortlived244pupointstocompactbinarymergersassites DE-627 ger DE-627 rakwb eng 530 DNB 33.00 bkl Kenta Hotokezaka verfasserin aut Short-lived 244Pu points to compact binary mergers as sites for heavy r-process nucleosynthesis 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The origin of heavy elements produced through rapid neutron capture ('r-process') by seed nuclei is one of the current nucleosynthesis mysteries. Core collapse supernovae (cc-SNe) and compact binary mergers are considered as possible sites. The first produces small amounts of material at a high event rate whereas the latter produces large amounts in rare events. Radioactive elements with the right lifetime can break the degeneracy between high-rate/low-yield and low-rate/high-yield scenarios. Among radioactive elements, most interesting is 244Pu (half-life of 81 million years), for which both the current accumulation of live 244Pu particles accreted via interstellar particles in the Earth's deep-sea floor and the Early Solar System (ESS) abundances have been measured. Interestingly, the estimated 244Pu abundance in the current interstellar medium inferred from deep-sea measurements is significantly lower than that corresponding to the ESS measurements. Here we show that both the current and ESS abundances of 244Pu are naturally explained within the low-rate/high-yield scenario. The inferred event rate remarkably agrees with compact binary merger rates estimated from Galactic neutron star binaries and from short gamma-ray bursts. Furthermore, the ejected mass of r-process elements per event agrees with both theoretica and observational macronova/kilonova estimates. Neutron stars Double stars Astrophysics Radioactive materials Tsvi Piran oth Michael Paul oth Enthalten in Nature physics Basingstoke : Nature Publishing Group, 2005 11(2015), 12, Seite 1042 (DE-627)503328537 (DE-600)2210466-5 (DE-576)251841693 1745-2473 nnns volume:11 year:2015 number:12 pages:1042 http://dx.doi.org/10.1038/nphys3574 Volltext http://search.proquest.com/docview/1766115185 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_70 GBV_ILN_170 GBV_ILN_2185 33.00 AVZ AR 11 2015 12 1042 |
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10.1038/nphys3574 doi PQ20160430 (DE-627)OLC1974314626 (DE-599)GBVOLC1974314626 (PRQ)p575-a7c47303ef560636a4aea0e9b1ed3c656fc1b8230af62b8d859d276df66ecbee0 (KEY)0590766720150000011001201042shortlived244pupointstocompactbinarymergersassites DE-627 ger DE-627 rakwb eng 530 DNB 33.00 bkl Kenta Hotokezaka verfasserin aut Short-lived 244Pu points to compact binary mergers as sites for heavy r-process nucleosynthesis 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The origin of heavy elements produced through rapid neutron capture ('r-process') by seed nuclei is one of the current nucleosynthesis mysteries. Core collapse supernovae (cc-SNe) and compact binary mergers are considered as possible sites. The first produces small amounts of material at a high event rate whereas the latter produces large amounts in rare events. Radioactive elements with the right lifetime can break the degeneracy between high-rate/low-yield and low-rate/high-yield scenarios. Among radioactive elements, most interesting is 244Pu (half-life of 81 million years), for which both the current accumulation of live 244Pu particles accreted via interstellar particles in the Earth's deep-sea floor and the Early Solar System (ESS) abundances have been measured. Interestingly, the estimated 244Pu abundance in the current interstellar medium inferred from deep-sea measurements is significantly lower than that corresponding to the ESS measurements. Here we show that both the current and ESS abundances of 244Pu are naturally explained within the low-rate/high-yield scenario. The inferred event rate remarkably agrees with compact binary merger rates estimated from Galactic neutron star binaries and from short gamma-ray bursts. Furthermore, the ejected mass of r-process elements per event agrees with both theoretica and observational macronova/kilonova estimates. Neutron stars Double stars Astrophysics Radioactive materials Tsvi Piran oth Michael Paul oth Enthalten in Nature physics Basingstoke : Nature Publishing Group, 2005 11(2015), 12, Seite 1042 (DE-627)503328537 (DE-600)2210466-5 (DE-576)251841693 1745-2473 nnns volume:11 year:2015 number:12 pages:1042 http://dx.doi.org/10.1038/nphys3574 Volltext http://search.proquest.com/docview/1766115185 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_70 GBV_ILN_170 GBV_ILN_2185 33.00 AVZ AR 11 2015 12 1042 |
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short-lived 244pu points to compact binary mergers as sites for heavy r-process nucleosynthesis |
| title_auth |
Short-lived 244Pu points to compact binary mergers as sites for heavy r-process nucleosynthesis |
| abstract |
The origin of heavy elements produced through rapid neutron capture ('r-process') by seed nuclei is one of the current nucleosynthesis mysteries. Core collapse supernovae (cc-SNe) and compact binary mergers are considered as possible sites. The first produces small amounts of material at a high event rate whereas the latter produces large amounts in rare events. Radioactive elements with the right lifetime can break the degeneracy between high-rate/low-yield and low-rate/high-yield scenarios. Among radioactive elements, most interesting is 244Pu (half-life of 81 million years), for which both the current accumulation of live 244Pu particles accreted via interstellar particles in the Earth's deep-sea floor and the Early Solar System (ESS) abundances have been measured. Interestingly, the estimated 244Pu abundance in the current interstellar medium inferred from deep-sea measurements is significantly lower than that corresponding to the ESS measurements. Here we show that both the current and ESS abundances of 244Pu are naturally explained within the low-rate/high-yield scenario. The inferred event rate remarkably agrees with compact binary merger rates estimated from Galactic neutron star binaries and from short gamma-ray bursts. Furthermore, the ejected mass of r-process elements per event agrees with both theoretica and observational macronova/kilonova estimates. |
| abstractGer |
The origin of heavy elements produced through rapid neutron capture ('r-process') by seed nuclei is one of the current nucleosynthesis mysteries. Core collapse supernovae (cc-SNe) and compact binary mergers are considered as possible sites. The first produces small amounts of material at a high event rate whereas the latter produces large amounts in rare events. Radioactive elements with the right lifetime can break the degeneracy between high-rate/low-yield and low-rate/high-yield scenarios. Among radioactive elements, most interesting is 244Pu (half-life of 81 million years), for which both the current accumulation of live 244Pu particles accreted via interstellar particles in the Earth's deep-sea floor and the Early Solar System (ESS) abundances have been measured. Interestingly, the estimated 244Pu abundance in the current interstellar medium inferred from deep-sea measurements is significantly lower than that corresponding to the ESS measurements. Here we show that both the current and ESS abundances of 244Pu are naturally explained within the low-rate/high-yield scenario. The inferred event rate remarkably agrees with compact binary merger rates estimated from Galactic neutron star binaries and from short gamma-ray bursts. Furthermore, the ejected mass of r-process elements per event agrees with both theoretica and observational macronova/kilonova estimates. |
| abstract_unstemmed |
The origin of heavy elements produced through rapid neutron capture ('r-process') by seed nuclei is one of the current nucleosynthesis mysteries. Core collapse supernovae (cc-SNe) and compact binary mergers are considered as possible sites. The first produces small amounts of material at a high event rate whereas the latter produces large amounts in rare events. Radioactive elements with the right lifetime can break the degeneracy between high-rate/low-yield and low-rate/high-yield scenarios. Among radioactive elements, most interesting is 244Pu (half-life of 81 million years), for which both the current accumulation of live 244Pu particles accreted via interstellar particles in the Earth's deep-sea floor and the Early Solar System (ESS) abundances have been measured. Interestingly, the estimated 244Pu abundance in the current interstellar medium inferred from deep-sea measurements is significantly lower than that corresponding to the ESS measurements. Here we show that both the current and ESS abundances of 244Pu are naturally explained within the low-rate/high-yield scenario. The inferred event rate remarkably agrees with compact binary merger rates estimated from Galactic neutron star binaries and from short gamma-ray bursts. Furthermore, the ejected mass of r-process elements per event agrees with both theoretica and observational macronova/kilonova estimates. |
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Short-lived 244Pu points to compact binary mergers as sites for heavy r-process nucleosynthesis |
| url |
http://dx.doi.org/10.1038/nphys3574 http://search.proquest.com/docview/1766115185 |
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