Publications
Search for supernova-produced Fe-60 in a marine sediment
- Author(s)
- C Fitoussi, G M Raisbeck, Klaus Knie, Gunther Korschinek, Thomas Faestermann, Stéphane Goriely, D Lunney, Mikhail Poutivtsev, Georg Rugel, M Waelbroeck, Anton Wallner
- Abstract
An Fe60 peak in a deep-sea FeMn crust has been interpreted as due to the signature left by the ejecta of a supernova explosion close to the solar system 2.8±0.4Myr ago [Knie , Phys. Rev. Lett. 93, 171103 (2004)PRLTAO0031-900710.1103/PhysRevLett.93.171103]. In an attempt to confirm this interpretation with better time resolution and obtain a more direct flux estimate, we measured Fe60 concentrations along a dated marine sediment. We find no Fe60 peak at the expected level from 1.7 to 3.2 Myr ago. Possible causes for the discrepancy are discussed.
- Organisation(s)
- Isotope Physics
- External organisation(s)
- Université Paris XI - Paris-Sud, Technische Universität München, Laboratoire des Sciences du Climat et de l'Environment, Université Libre de Bruxelles
- Journal
- Physical Review Letters
- Volume
- 101
- No. of pages
- 4
- ISSN
- 0031-9007
- DOI
- https://doi.org/10.1103/PhysRevLett.101.121101
- Publication date
- 2008
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 1030 Physics, Astronomy
- Sustainable Development Goals
- SDG 14 - Life Below Water
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/2c60562c-b23e-4e9a-bbb9-1065e79e6b86