Cosmogenic radionuclides reveal an extreme solar particle storm near a solar minimum 9125 years BP
During solar storms, the Sun expels large amounts of energetic particles (SEP) that can react with the Earth’s atmospheric constituents and produce cosmogenic radionuclides such as 14C, 10Be and 36Cl. Here we present 10Be and 36Cl data measured in ice cores from Greenland and Antarctica. The data co...
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ftethz:oai:www.research-collection.ethz.ch:20.500.11850/527622 2023-05-15T13:41:37+02:00 Cosmogenic radionuclides reveal an extreme solar particle storm near a solar minimum 9125 years BP Paleari, Chiara I. Mekhaldi, Florian Adolphi, Florian Christl, Marcus Vockenhuber, Christof Gautschi, Philip Beer, Jürg Brehm, Nicolas Erhardt, Tobias Synal, Hans-Arno Wacker, Lukas Wilhelms, Frank Muscheler, Raimund 2022-01-11 application/application/pdf https://hdl.handle.net/20.500.11850/527622 https://doi.org/10.3929/ethz-b-000527622 en eng Nature info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-021-27891-4 info:eu-repo/semantics/altIdentifier/wos/000741852200066 info:eu-repo/grantAgreement/EC/H2020/824096 http://hdl.handle.net/20.500.11850/527622 doi:10.3929/ethz-b-000527622 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International CC-BY Nature Communications, 13 (1) info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2022 ftethz https://doi.org/20.500.11850/527622 https://doi.org/10.3929/ethz-b-000527622 https://doi.org/10.1038/s41467-021-27891-4 2023-02-13T00:59:50Z During solar storms, the Sun expels large amounts of energetic particles (SEP) that can react with the Earth’s atmospheric constituents and produce cosmogenic radionuclides such as 14C, 10Be and 36Cl. Here we present 10Be and 36Cl data measured in ice cores from Greenland and Antarctica. The data consistently show one of the largest 10Be and 36Cl production peaks detected so far, most likely produced by an extreme SEP event that hit Earth 9125 years BP (before present, i.e., before 1950 CE), i.e., 7176 BCE. Using the 36Cl/10Be ratio, we demonstrate that this event was characterized by a very hard energy spectrum and was possibly up to two orders of magnitude larger than any SEP event during the instrumental period. Furthermore, we provide 10Be-based evidence that, contrary to expectations, the SEP event occurred near a solar minimum. ISSN:2041-1723 Article in Journal/Newspaper Antarc* Antarctica Greenland ETH Zürich Research Collection Greenland |
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ETH Zürich Research Collection |
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ftethz |
language |
English |
description |
During solar storms, the Sun expels large amounts of energetic particles (SEP) that can react with the Earth’s atmospheric constituents and produce cosmogenic radionuclides such as 14C, 10Be and 36Cl. Here we present 10Be and 36Cl data measured in ice cores from Greenland and Antarctica. The data consistently show one of the largest 10Be and 36Cl production peaks detected so far, most likely produced by an extreme SEP event that hit Earth 9125 years BP (before present, i.e., before 1950 CE), i.e., 7176 BCE. Using the 36Cl/10Be ratio, we demonstrate that this event was characterized by a very hard energy spectrum and was possibly up to two orders of magnitude larger than any SEP event during the instrumental period. Furthermore, we provide 10Be-based evidence that, contrary to expectations, the SEP event occurred near a solar minimum. ISSN:2041-1723 |
format |
Article in Journal/Newspaper |
author |
Paleari, Chiara I. Mekhaldi, Florian Adolphi, Florian Christl, Marcus Vockenhuber, Christof Gautschi, Philip Beer, Jürg Brehm, Nicolas Erhardt, Tobias Synal, Hans-Arno Wacker, Lukas Wilhelms, Frank Muscheler, Raimund |
spellingShingle |
Paleari, Chiara I. Mekhaldi, Florian Adolphi, Florian Christl, Marcus Vockenhuber, Christof Gautschi, Philip Beer, Jürg Brehm, Nicolas Erhardt, Tobias Synal, Hans-Arno Wacker, Lukas Wilhelms, Frank Muscheler, Raimund Cosmogenic radionuclides reveal an extreme solar particle storm near a solar minimum 9125 years BP |
author_facet |
Paleari, Chiara I. Mekhaldi, Florian Adolphi, Florian Christl, Marcus Vockenhuber, Christof Gautschi, Philip Beer, Jürg Brehm, Nicolas Erhardt, Tobias Synal, Hans-Arno Wacker, Lukas Wilhelms, Frank Muscheler, Raimund |
author_sort |
Paleari, Chiara I. |
title |
Cosmogenic radionuclides reveal an extreme solar particle storm near a solar minimum 9125 years BP |
title_short |
Cosmogenic radionuclides reveal an extreme solar particle storm near a solar minimum 9125 years BP |
title_full |
Cosmogenic radionuclides reveal an extreme solar particle storm near a solar minimum 9125 years BP |
title_fullStr |
Cosmogenic radionuclides reveal an extreme solar particle storm near a solar minimum 9125 years BP |
title_full_unstemmed |
Cosmogenic radionuclides reveal an extreme solar particle storm near a solar minimum 9125 years BP |
title_sort |
cosmogenic radionuclides reveal an extreme solar particle storm near a solar minimum 9125 years bp |
publisher |
Nature |
publishDate |
2022 |
url |
https://hdl.handle.net/20.500.11850/527622 https://doi.org/10.3929/ethz-b-000527622 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica Greenland |
genre_facet |
Antarc* Antarctica Greenland |
op_source |
Nature Communications, 13 (1) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-021-27891-4 info:eu-repo/semantics/altIdentifier/wos/000741852200066 info:eu-repo/grantAgreement/EC/H2020/824096 http://hdl.handle.net/20.500.11850/527622 doi:10.3929/ethz-b-000527622 |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/20.500.11850/527622 https://doi.org/10.3929/ethz-b-000527622 https://doi.org/10.1038/s41467-021-27891-4 |
_version_ |
1766153026632941568 |