A Single-Year Cosmic Ray Event at 5410 BCE Registered in 14C of Tree Rings
Miyake, F. ; Panyushkina, I. P. ; Jull, A. J.T. ; Adolphi, F. LU ; Brehm, N. ; Helama, S. ; Kanzawa, K. ; Moriya, T. ; Muscheler, R. LU
and Nicolussi, K.
, et al.
(2021)
In Geophysical Research Letters
48(11).
- Abstract
The annual 14C data in tree rings is an outstanding proxy for uncovering extreme solar energetic particle (SEP) events in the past. Signatures of extreme SEP events have been reported in 774/775 CE, 992/993 CE, and ∼660 BCE. Here, we report another rapid increase of 14C concentration in tree rings from California, Switzerland, and Finland around 5410 BCE. These 14C data series show a significant increase of ∼6‰ in 5411–5410 BCE. The signature of 14C variation is very similar to the confirmed three SEP events and points to an extreme short-term flux of cosmic ray radiation into the atmosphere. The rapid 14C increase in 5411/5410 BCE rings occurred during a period of high solar... (More)
The annual 14C data in tree rings is an outstanding proxy for uncovering extreme solar energetic particle (SEP) events in the past. Signatures of extreme SEP events have been reported in 774/775 CE, 992/993 CE, and ∼660 BCE. Here, we report another rapid increase of 14C concentration in tree rings from California, Switzerland, and Finland around 5410 BCE. These 14C data series show a significant increase of ∼6‰ in 5411–5410 BCE. The signature of 14C variation is very similar to the confirmed three SEP events and points to an extreme short-term flux of cosmic ray radiation into the atmosphere. The rapid 14C increase in 5411/5410 BCE rings occurred during a period of high solar activity and 60 years after a grand 14C excursion during 5481–5471 BCE. The similarity of our 14C data to previous events suggests that the origin of the 5410 BCE event is an extreme SEP event.
(Less)
- author
- Miyake, F.
; Panyushkina, I. P.
; Jull, A. J.T.
; Adolphi, F.
LU
; Brehm, N.
; Helama, S.
; Kanzawa, K.
; Moriya, T.
; Muscheler, R.
LU
and Nicolussi, K.
, et al. (More)
- Miyake, F.
; Panyushkina, I. P.
; Jull, A. J.T.
; Adolphi, F.
LU
; Brehm, N.
; Helama, S.
; Kanzawa, K.
; Moriya, T.
; Muscheler, R.
LU
; Nicolussi, K.
; Oinonen, M.
; Salzer, M.
; Takeyama, M.
; Tokanai, F.
and Wacker, L.
(Less)
- organization
- publishing date
- 2021-06-16
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- cosmogenic nuclide, radiocarbon, solar activity, solar energetic particle, tree rings
- in
- Geophysical Research Letters
- volume
- 48
- issue
- 11
- article number
- e2021GL093419
- publisher
- American Geophysical Union (AGU)
- external identifiers
-
- scopus:85107880834
- pmid:34433990
- ISSN
- 0094-8276
- DOI
- 10.1029/2021GL093419
- language
- English
- LU publication?
- yes
- id
- 8bcfffea-4e7e-4d60-99d9-9d0ee07e441d
- date added to LUP
- 2021-06-28 10:02:45
- date last changed
- 2024-07-13 15:22:29
@article{8bcfffea-4e7e-4d60-99d9-9d0ee07e441d,
abstract = {{<p>The annual <sup>14</sup>C data in tree rings is an outstanding proxy for uncovering extreme solar energetic particle (SEP) events in the past. Signatures of extreme SEP events have been reported in 774/775 CE, 992/993 CE, and ∼660 BCE. Here, we report another rapid increase of <sup>14</sup>C concentration in tree rings from California, Switzerland, and Finland around 5410 BCE. These <sup>14</sup>C data series show a significant increase of ∼6‰ in 5411–5410 BCE. The signature of <sup>14</sup>C variation is very similar to the confirmed three SEP events and points to an extreme short-term flux of cosmic ray radiation into the atmosphere. The rapid <sup>14</sup>C increase in 5411/5410 BCE rings occurred during a period of high solar activity and 60 years after a grand <sup>14</sup>C excursion during 5481–5471 BCE. The similarity of our <sup>14</sup>C data to previous events suggests that the origin of the 5410 BCE event is an extreme SEP event.</p>}},
author = {{Miyake, F. and Panyushkina, I. P. and Jull, A. J.T. and Adolphi, F. and Brehm, N. and Helama, S. and Kanzawa, K. and Moriya, T. and Muscheler, R. and Nicolussi, K. and Oinonen, M. and Salzer, M. and Takeyama, M. and Tokanai, F. and Wacker, L.}},
issn = {{0094-8276}},
keywords = {{cosmogenic nuclide; radiocarbon; solar activity; solar energetic particle; tree rings}},
language = {{eng}},
month = {{06}},
number = {{11}},
publisher = {{American Geophysical Union (AGU)}},
series = {{Geophysical Research Letters}},
title = {{A Single-Year Cosmic Ray Event at 5410 BCE Registered in <sup>14</sup>C of Tree Rings}},
url = {{http://dx.doi.org/10.1029/2021GL093419}},
doi = {{10.1029/2021GL093419}},
volume = {{48}},
year = {{2021}},
}