Tree-rings reveal two strong solar proton events in 7176 and 5259 BCE
The Sun sporadically produces eruptive events leading to intense fluxes of solar energetic particles (SEPs) that dramatically disrupt the near-Earth radiation environment. Such events have been directly studied for the last decades but little is known about the occurrence and magnitude of rare, extr...
Published in: | Nature Communications |
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2022
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Online Access: | https://pure.qub.ac.uk/en/publications/e01774a4-ff51-4735-add2-504a6bfee3ea https://doi.org/10.1038/s41467-022-28804-9 https://pureadmin.qub.ac.uk/ws/files/481025791/s41467_022_28804_9.pdf |
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ftqueensubelpubl:oai:pure.qub.ac.uk/portal:publications/e01774a4-ff51-4735-add2-504a6bfee3ea 2024-09-09T19:44:56+00:00 Tree-rings reveal two strong solar proton events in 7176 and 5259 BCE Brehm, Nicolas Christl, Marcus Knowles, Timothy D.J. Casanova, Emmanuelle Evershed, Richard P. Adolphi, Florian Muscheler, Raimund Synal, Hans Arno Mekhaldi, Florian Paleari, Chiara I. Leuschner, Hanns Hubert Bayliss, Alex Nicolussi, Kurt Pichler, Thomas Schlüchter, Christian Pearson, Charlotte L. Salzer, Matthew W. Fonti, Patrick Nievergelt, Daniel Hantemirov, Rashit Brown, David M. Usoskin, Ilya Wacker, Lukas 2022-12 application/pdf https://pure.qub.ac.uk/en/publications/e01774a4-ff51-4735-add2-504a6bfee3ea https://doi.org/10.1038/s41467-022-28804-9 https://pureadmin.qub.ac.uk/ws/files/481025791/s41467_022_28804_9.pdf eng eng https://pure.qub.ac.uk/en/publications/e01774a4-ff51-4735-add2-504a6bfee3ea info:eu-repo/semantics/openAccess Brehm , N , Christl , M , Knowles , T D J , Casanova , E , Evershed , R P , Adolphi , F , Muscheler , R , Synal , H A , Mekhaldi , F , Paleari , C I , Leuschner , H H , Bayliss , A , Nicolussi , K , Pichler , T , Schlüchter , C , Pearson , C L , Salzer , M W , Fonti , P , Nievergelt , D , Hantemirov , R , Brown , D M , Usoskin , I & Wacker , L 2022 , ' Tree-rings reveal two strong solar proton events in 7176 and 5259 BCE ' , Nature Communications , vol. 13 , 1196 . https://doi.org/10.1038/s41467-022-28804-9 /dk/atira/pure/subjectarea/asjc/1600/1600 name=General Chemistry /dk/atira/pure/subjectarea/asjc/1300/1300 name=General Biochemistry,Genetics and Molecular Biology /dk/atira/pure/subjectarea/asjc/1000 name=General /dk/atira/pure/subjectarea/asjc/3100/3100 name=General Physics and Astronomy article 2022 ftqueensubelpubl https://doi.org/10.1038/s41467-022-28804-9 2024-06-18T14:45:09Z The Sun sporadically produces eruptive events leading to intense fluxes of solar energetic particles (SEPs) that dramatically disrupt the near-Earth radiation environment. Such events have been directly studied for the last decades but little is known about the occurrence and magnitude of rare, extreme SEP events. Presently, a few events that produced measurable signals in cosmogenic radionuclides such as 14 C, 10 Be and 36 Cl have been found. Analyzing annual 14 C concentrations in tree-rings from Switzerland, Germany, Ireland, Russia, and the USA we discovered two spikes in atmospheric 14 C occurring in 7176 and 5259 BCE. The ~2% increases of atmospheric 14 C recorded for both events exceed all previously known 14 C peaks but after correction for the geomagnetic field, they are comparable to the largest event of this type discovered so far at 775 CE. These strong events serve as accurate time markers for the synchronization with floating tree-ring and ice core records and provide critical information on the previous occurrence of extreme solar events which may threaten modern infrastructure. Article in Journal/Newspaper ice core Queen's University Belfast Research Portal Nature Communications 13 1 |
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Queen's University Belfast Research Portal |
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ftqueensubelpubl |
language |
English |
topic |
/dk/atira/pure/subjectarea/asjc/1600/1600 name=General Chemistry /dk/atira/pure/subjectarea/asjc/1300/1300 name=General Biochemistry,Genetics and Molecular Biology /dk/atira/pure/subjectarea/asjc/1000 name=General /dk/atira/pure/subjectarea/asjc/3100/3100 name=General Physics and Astronomy |
spellingShingle |
/dk/atira/pure/subjectarea/asjc/1600/1600 name=General Chemistry /dk/atira/pure/subjectarea/asjc/1300/1300 name=General Biochemistry,Genetics and Molecular Biology /dk/atira/pure/subjectarea/asjc/1000 name=General /dk/atira/pure/subjectarea/asjc/3100/3100 name=General Physics and Astronomy Brehm, Nicolas Christl, Marcus Knowles, Timothy D.J. Casanova, Emmanuelle Evershed, Richard P. Adolphi, Florian Muscheler, Raimund Synal, Hans Arno Mekhaldi, Florian Paleari, Chiara I. Leuschner, Hanns Hubert Bayliss, Alex Nicolussi, Kurt Pichler, Thomas Schlüchter, Christian Pearson, Charlotte L. Salzer, Matthew W. Fonti, Patrick Nievergelt, Daniel Hantemirov, Rashit Brown, David M. Usoskin, Ilya Wacker, Lukas Tree-rings reveal two strong solar proton events in 7176 and 5259 BCE |
topic_facet |
/dk/atira/pure/subjectarea/asjc/1600/1600 name=General Chemistry /dk/atira/pure/subjectarea/asjc/1300/1300 name=General Biochemistry,Genetics and Molecular Biology /dk/atira/pure/subjectarea/asjc/1000 name=General /dk/atira/pure/subjectarea/asjc/3100/3100 name=General Physics and Astronomy |
description |
The Sun sporadically produces eruptive events leading to intense fluxes of solar energetic particles (SEPs) that dramatically disrupt the near-Earth radiation environment. Such events have been directly studied for the last decades but little is known about the occurrence and magnitude of rare, extreme SEP events. Presently, a few events that produced measurable signals in cosmogenic radionuclides such as 14 C, 10 Be and 36 Cl have been found. Analyzing annual 14 C concentrations in tree-rings from Switzerland, Germany, Ireland, Russia, and the USA we discovered two spikes in atmospheric 14 C occurring in 7176 and 5259 BCE. The ~2% increases of atmospheric 14 C recorded for both events exceed all previously known 14 C peaks but after correction for the geomagnetic field, they are comparable to the largest event of this type discovered so far at 775 CE. These strong events serve as accurate time markers for the synchronization with floating tree-ring and ice core records and provide critical information on the previous occurrence of extreme solar events which may threaten modern infrastructure. |
format |
Article in Journal/Newspaper |
author |
Brehm, Nicolas Christl, Marcus Knowles, Timothy D.J. Casanova, Emmanuelle Evershed, Richard P. Adolphi, Florian Muscheler, Raimund Synal, Hans Arno Mekhaldi, Florian Paleari, Chiara I. Leuschner, Hanns Hubert Bayliss, Alex Nicolussi, Kurt Pichler, Thomas Schlüchter, Christian Pearson, Charlotte L. Salzer, Matthew W. Fonti, Patrick Nievergelt, Daniel Hantemirov, Rashit Brown, David M. Usoskin, Ilya Wacker, Lukas |
author_facet |
Brehm, Nicolas Christl, Marcus Knowles, Timothy D.J. Casanova, Emmanuelle Evershed, Richard P. Adolphi, Florian Muscheler, Raimund Synal, Hans Arno Mekhaldi, Florian Paleari, Chiara I. Leuschner, Hanns Hubert Bayliss, Alex Nicolussi, Kurt Pichler, Thomas Schlüchter, Christian Pearson, Charlotte L. Salzer, Matthew W. Fonti, Patrick Nievergelt, Daniel Hantemirov, Rashit Brown, David M. Usoskin, Ilya Wacker, Lukas |
author_sort |
Brehm, Nicolas |
title |
Tree-rings reveal two strong solar proton events in 7176 and 5259 BCE |
title_short |
Tree-rings reveal two strong solar proton events in 7176 and 5259 BCE |
title_full |
Tree-rings reveal two strong solar proton events in 7176 and 5259 BCE |
title_fullStr |
Tree-rings reveal two strong solar proton events in 7176 and 5259 BCE |
title_full_unstemmed |
Tree-rings reveal two strong solar proton events in 7176 and 5259 BCE |
title_sort |
tree-rings reveal two strong solar proton events in 7176 and 5259 bce |
publishDate |
2022 |
url |
https://pure.qub.ac.uk/en/publications/e01774a4-ff51-4735-add2-504a6bfee3ea https://doi.org/10.1038/s41467-022-28804-9 https://pureadmin.qub.ac.uk/ws/files/481025791/s41467_022_28804_9.pdf |
genre |
ice core |
genre_facet |
ice core |
op_source |
Brehm , N , Christl , M , Knowles , T D J , Casanova , E , Evershed , R P , Adolphi , F , Muscheler , R , Synal , H A , Mekhaldi , F , Paleari , C I , Leuschner , H H , Bayliss , A , Nicolussi , K , Pichler , T , Schlüchter , C , Pearson , C L , Salzer , M W , Fonti , P , Nievergelt , D , Hantemirov , R , Brown , D M , Usoskin , I & Wacker , L 2022 , ' Tree-rings reveal two strong solar proton events in 7176 and 5259 BCE ' , Nature Communications , vol. 13 , 1196 . https://doi.org/10.1038/s41467-022-28804-9 |
op_relation |
https://pure.qub.ac.uk/en/publications/e01774a4-ff51-4735-add2-504a6bfee3ea |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41467-022-28804-9 |
container_title |
Nature Communications |
container_volume |
13 |
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1 |
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1809914585463914496 |