title: 60Fe anomaly in a deep-sea manganese crust and implications for a nearby supernova source.
abstract: A nearby supernova (SN) explosion in the past can be confirmed by the detection of radioisotopes on Earth that were produced and ejected by the SN. We have now measured a well resolved time profile of the 60Fe concentration in a deep-sea ferromanganese crust and found a highly significant increase 2.8 Myr ago. The amount of 60Fe is compatible with the deposition of ejecta from a SN at a distance of a few 10 pc. The well defined time of the SN explosion makes it possible to search for plausible correlations with other events in Earth's history.
authors.affiliation: Technische Universität München, Fakultät für Physik, James-Franck-Strasse 1, 85747 Garching, Germany.
authors.forename: K
authors.initials: K
authors.lastname: Knie
authors.forename: G
authors.initials: G
authors.lastname: Korschinek
authors.forename: T
authors.initials: T
authors.lastname: Faestermann
authors.forename: E A
authors.initials: EA
authors.lastname: Dorfi
authors.forename: G
authors.initials: G
authors.lastname: Rugel
authors.forename: A
authors.initials: A
authors.lastname: Wallner