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 14 C, 10 Be and 36 Cl. Here we present 10 Be and 36 Cl data measured in ice cores from Greenland and Antarctica. The da...
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fteawag:oai:dora:eawag_24335 2023-06-18T03:38:13+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 https://doi.org/10.1038/s41467-021-27891-4 eng eng Springer Nature Nature Communications--Nat. Commun.--journals:2180--2041-1723 eawag:24335 doi:10.1038/s41467-021-27891-4 scopus: 2-s2.0-85122816802 pmid: 35017519 journal id: journals:2180 e-issn: 2041-1723 ut: 000741852200066 Journal Article Text 2022 fteawag https://doi.org/10.1038/s41467-021-27891-4 2023-06-04T23:49:55Z 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 14 C, 10 Be and 36 Cl. Here we present 10 Be and 36 Cl data measured in ice cores from Greenland and Antarctica. The data consistently show one of the largest 10 Be and 36 Cl 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 36 Cl/ 10 Be 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 10 Be-based evidence that, contrary to expectations, the SEP event occurred near a solar minimum. Article in Journal/Newspaper Antarc* Antarctica Greenland DORA Eawag Greenland Nature Communications 13 1 |
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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 14 C, 10 Be and 36 Cl. Here we present 10 Be and 36 Cl data measured in ice cores from Greenland and Antarctica. The data consistently show one of the largest 10 Be and 36 Cl 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 36 Cl/ 10 Be 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 10 Be-based evidence that, contrary to expectations, the SEP event occurred near a solar minimum. |
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 |
Springer Nature |
publishDate |
2022 |
url |
https://doi.org/10.1038/s41467-021-27891-4 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica Greenland |
genre_facet |
Antarc* Antarctica Greenland |
op_relation |
Nature Communications--Nat. Commun.--journals:2180--2041-1723 eawag:24335 doi:10.1038/s41467-021-27891-4 scopus: 2-s2.0-85122816802 pmid: 35017519 journal id: journals:2180 e-issn: 2041-1723 ut: 000741852200066 |
op_doi |
https://doi.org/10.1038/s41467-021-27891-4 |
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Nature Communications |
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13 |
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1 |
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1769003128747720704 |