60Fe anomaly in a deep-sea manganese crust and implications for a nearby supernova source

Autor(en)

Klaus Knie, Gunther Korschinek, Thomas Faestermann, Ernst Dorfi, Georg Rugel, Anton Wallner

Abstrakt

The determination of a nearby supernova (SN) explosion confirmed by the detection of radioisotopes on Earth, was investigated. A well resolved time profile of the 60Fe concentration in a deep-sea ferromanganese crust was measured and a highly significant increase was also found. It was observed that the amount of 60Fe was compatible with the deposition of ejecta from a SN at a distance of a few 10 pc. The results show that a well defined time of the SN explosion makes it possible to search for plausible correlations with other events in Earth's history.

Organisation(en)

Institut für Astrophysik

Externe Organisation(en)

Technische Universität München

Journal

Physical Review Letters

Band

93

ISSN

0031-9007

Publikationsdatum

2004

Peer-reviewed

Ja

ÖFOS 2012

1030 Physik, Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/ee911129-5181-45e2-9873-6e8795c1bdde