Search for supernova-produced 60Fe in a marine sediment

Simple item page
dc.creatorFitoussi, C.
dc.creatorRaisbeck, G. M.
dc.creatorKnie, K.
dc.creatorKorschinek, G.
dc.creatorFaestermann, T.
dc.creatorGoriely, S.
dc.creatorLunney, D.
dc.creatorPoutivtsev, M.
dc.creatorRugel, G.
dc.creatorWaelbroeck, C.
dc.creatorWallner, A.
dc.date2007-09-26
dc.date.accessioned2026-07-07T11:53:15Z
dc.date.available2026-07-07T11:53:15Z
dc.descriptionAn 60Fe 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 +/- 0.4 Myr ago [Knie et al., Phys. Rev. Lett. 93, 171103 (2004)]. To confirm this interpretation with better time resolution and obtain a more direct flux estimate, we measured 60Fe concentrations along a dated marine sediment. We find no 60Fe peak at the expected level from 1.7 to 3.2 Myr ago. However, applying the same chemistry used for the sediment, we confirm the 60Fe signal in the FeMn crust. The cause of the discrepancy is discussed.
dc.description15 pages, 5 figures, submitted to PRL
dc.identifierhttps://arxiv.org/abs/0709.4197
dc.identifierhttp://arxiv.org/abs/0709.4197
dc.identifierPhys.Rev.Lett.101:121101,2008
dc.identifierdoi:10.1103/PhysRevLett.101.121101
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/204472
dc.subjectAstrophysics
dc.titleSearch for supernova-produced 60Fe in a marine sediment
dc.typetext

Files

Collections

arXiv