AMS measurements of cosmogenic and supernova-ejected radionuclides in deep-sea sediment cores

J. Feige; A. Wallner; L. K. Fifield; G. Korschinek; S. Merchel; G. Rugel; P. Steier; S. R. Winkler; R. Golser

doi:10.1051/epjconf/20136303003

AMS measurements of cosmogenic and supernova-ejected radionuclides in deep-sea sediment cores

J. Feige (Korresp. Autor*in), A. Wallner, L. K. Fifield, G. Korschinek, S. Merchel, G. Rugel, P. Steier, S. R. Winkler, R. Golser

Isotopenphysik

Veröffentlichungen: Beitrag in Buch › Beitrag in Konferenzband

Abstract

Samples of two deep-sea sediment cores from the Indian Ocean are analyzed with accelerator mass spectrometry (AMS) to search for traces of recent supernova activity ~2 Myr ago. Here, long-lived radionuclides, which are synthesized in massive stars and ejected in supernova explosions, namely ²⁶Al, ⁵³Mn and ⁶⁰Fe, are extracted from the sediment samples. The cosmogenic isotope ¹⁰Be, which is mainly produced in the Earth's atmosphere, is analyzed for dating purposes of the marine sediment cores. The first AMS measurement results for ¹⁰Be and ²⁶Al are presented, which represent for the first time a detailed study in the time period of 1.7-3.1 Myr with high time resolution. Our first results do not support a significant extraterrestrial signal of ²⁶Al above terrestrial background. However, there is evidence that, like ¹⁰Be, ²⁶Al might be a valuable isotope for dating of deep-sea sediment cores for the past few million years.

Originalsprache	Englisch
Titel	Heavy Ion Accelerator Symposium 2013
Redakteure*innen	C Simenel, M Evers, T Kibedi, DH Luong, M Reed, M Srncik, A Wallner
Herausgeber (Verlag)	E D P Sciences
Seitenumfang	5
DOIs	https://doi.org/10.1051/epjconf/20136303003
Publikationsstatus	Veröffentlicht - 2013
Veranstaltung	Symposium on Heavy Ion Accelerator - Canberra, Australien Dauer: 8 Apr. 2013 → 12 Apr. 2013

Publikationsreihe

Reihe	EPJ Web of Conferences
Band	63
ISSN	2100-014X

Konferenz

Konferenz	Symposium on Heavy Ion Accelerator
Land/Gebiet	Australien
Ort	Canberra
Zeitraum	8/04/13 → 12/04/13

ÖFOS 2012

103005 Atomphysik

UN SDGs

Dieser Output leistet einen Beitrag zu folgendem(n) Ziel(en) für nachhaltige Entwicklung

Zugriff auf Dokument

10.1051/epjconf/20136303003Lizenz: Andere

http://arxiv.org/abs/1311.3481

Zitationsweisen

Feige, J., Wallner, A., Fifield, L. K., Korschinek, G., Merchel, S., Rugel, G., Steier, P., Winkler, S. R., & Golser, R. (2013). AMS measurements of cosmogenic and supernova-ejected radionuclides in deep-sea sediment cores. in C. Simenel, M. Evers, T. Kibedi, DH. Luong, M. Reed, M. Srncik, & A. Wallner (Hrsg.), Heavy Ion Accelerator Symposium 2013 [03003] E D P Sciences. EPJ Web of Conferences Band 63 https://doi.org/10.1051/epjconf/20136303003

@inproceedings{e176d271745746e4a0bc566153c2636f,

title = "AMS measurements of cosmogenic and supernova-ejected radionuclides in deep-sea sediment cores",

abstract = "Samples of two deep-sea sediment cores from the Indian Ocean are analyzed with accelerator mass spectrometry (AMS) to search for traces of recent supernova activity ~2 Myr ago. Here, long-lived radionuclides, which are synthesized in massive stars and ejected in supernova explosions, namely 26Al, 53Mn and 60Fe, are extracted from the sediment samples. The cosmogenic isotope 10Be, which is mainly produced in the Earth's atmosphere, is analyzed for dating purposes of the marine sediment cores. The first AMS measurement results for 10Be and 26Al are presented, which represent for the first time a detailed study in the time period of 1.7-3.1 Myr with high time resolution. Our first results do not support a significant extraterrestrial signal of 26Al above terrestrial background. However, there is evidence that, like 10Be, 26Al might be a valuable isotope for dating of deep-sea sediment cores for the past few million years.",

keywords = "MARINE-SEDIMENTS, HALF-LIFE, BE-10, FE-60, AL-26, ACCELERATOR, NUCLIDES, FACILITY, VERA, MASS",

author = "J. Feige and A. Wallner and Fifield, {L. K.} and G. Korschinek and S. Merchel and G. Rugel and P. Steier and Winkler, {S. R.} and R. Golser",

year = "2013",

doi = "10.1051/epjconf/20136303003",

language = "English",

series = "EPJ Web of Conferences",

publisher = "E D P Sciences",

editor = "C Simenel and M Evers and T Kibedi and DH Luong and M Reed and M Srncik and A Wallner",

booktitle = "Heavy Ion Accelerator Symposium 2013",

note = "Symposium on Heavy Ion Accelerator ; Conference date: 08-04-2013 Through 12-04-2013",

}

Feige, J, Wallner, A, Fifield, LK, Korschinek, G, Merchel, S, Rugel, G, Steier, P, Winkler, SR & Golser, R 2013, AMS measurements of cosmogenic and supernova-ejected radionuclides in deep-sea sediment cores. in C Simenel, M Evers, T Kibedi, DH Luong, M Reed, M Srncik & A Wallner (Hrsg.), Heavy Ion Accelerator Symposium 2013 ., 03003, E D P Sciences, EPJ Web of Conferences, Bd. 63, Symposium on Heavy Ion Accelerator, Canberra, Australien, 8/04/13. https://doi.org/10.1051/epjconf/20136303003

AMS measurements of cosmogenic and supernova-ejected radionuclides in deep-sea sediment cores. / Feige, J. (Korresp. Autor*in); Wallner, A.; Fifield, L. K. et al.

Heavy Ion Accelerator Symposium 2013 . Hrsg. / C Simenel; M Evers; T Kibedi; DH Luong; M Reed; M Srncik; A Wallner. E D P Sciences, 2013. 03003 (EPJ Web of Conferences, Band 63).

Veröffentlichungen: Beitrag in Buch › Beitrag in Konferenzband

TY - GEN

T1 - AMS measurements of cosmogenic and supernova-ejected radionuclides in deep-sea sediment cores

AU - Feige, J.

AU - Wallner, A.

AU - Fifield, L. K.

AU - Korschinek, G.

AU - Merchel, S.

AU - Rugel, G.

AU - Steier, P.

AU - Winkler, S. R.

AU - Golser, R.

PY - 2013

Y1 - 2013

N2 - Samples of two deep-sea sediment cores from the Indian Ocean are analyzed with accelerator mass spectrometry (AMS) to search for traces of recent supernova activity ~2 Myr ago. Here, long-lived radionuclides, which are synthesized in massive stars and ejected in supernova explosions, namely 26Al, 53Mn and 60Fe, are extracted from the sediment samples. The cosmogenic isotope 10Be, which is mainly produced in the Earth's atmosphere, is analyzed for dating purposes of the marine sediment cores. The first AMS measurement results for 10Be and 26Al are presented, which represent for the first time a detailed study in the time period of 1.7-3.1 Myr with high time resolution. Our first results do not support a significant extraterrestrial signal of 26Al above terrestrial background. However, there is evidence that, like 10Be, 26Al might be a valuable isotope for dating of deep-sea sediment cores for the past few million years.

AB - Samples of two deep-sea sediment cores from the Indian Ocean are analyzed with accelerator mass spectrometry (AMS) to search for traces of recent supernova activity ~2 Myr ago. Here, long-lived radionuclides, which are synthesized in massive stars and ejected in supernova explosions, namely 26Al, 53Mn and 60Fe, are extracted from the sediment samples. The cosmogenic isotope 10Be, which is mainly produced in the Earth's atmosphere, is analyzed for dating purposes of the marine sediment cores. The first AMS measurement results for 10Be and 26Al are presented, which represent for the first time a detailed study in the time period of 1.7-3.1 Myr with high time resolution. Our first results do not support a significant extraterrestrial signal of 26Al above terrestrial background. However, there is evidence that, like 10Be, 26Al might be a valuable isotope for dating of deep-sea sediment cores for the past few million years.

KW - MARINE-SEDIMENTS

KW - HALF-LIFE

KW - BE-10

KW - FE-60

KW - AL-26

KW - ACCELERATOR

KW - NUCLIDES

KW - FACILITY

KW - VERA

KW - MASS

U2 - 10.1051/epjconf/20136303003

DO - 10.1051/epjconf/20136303003

M3 - Contribution to proceedings

T3 - EPJ Web of Conferences

BT - Heavy Ion Accelerator Symposium 2013

A2 - Simenel, C

A2 - Evers, M

A2 - Kibedi, T

A2 - Luong, DH

A2 - Reed, M

A2 - Srncik, M

A2 - Wallner, A

PB - E D P Sciences

T2 - Symposium on Heavy Ion Accelerator

Y2 - 8 April 2013 through 12 April 2013

ER -

Feige J, Wallner A, Fifield LK, Korschinek G, Merchel S, Rugel G et al. AMS measurements of cosmogenic and supernova-ejected radionuclides in deep-sea sediment cores. in Simenel C, Evers M, Kibedi T, Luong DH, Reed M, Srncik M, Wallner A, Hrsg., Heavy Ion Accelerator Symposium 2013 . E D P Sciences. 2013. 03003. (EPJ Web of Conferences, Band 63). doi: 10.1051/epjconf/20136303003