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Literature DB >> 15525065

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

K Knie¹, G Korschinek, T Faestermann, E A Dorfi, G Rugel, A Wallner.

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.

Entities: Chemical Disease

Year: 2004 PMID： 15525065 DOI： 10.1103/PhysRevLett.93.171103

Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161

Keyword Cloud
Cited

14 in total

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5. Time-resolved 2-million-year-old supernova activity discovered in Earth's microfossil record.

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Journal: Proc Natl Acad Sci U S A Date: 2016-08-08 Impact factor: 11.205

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

1. Habitable zones in the universe.

Review 2. Laboratory technology and cosmochemistry.

3. Terrestrial effects of moderately nearby supernovae.

4. The locations of recent supernovae near the Sun from modelling (60)Fe transport.

5. Time-resolved 2-million-year-old supernova activity discovered in Earth's microfossil record.

6. ⁶⁰Fe deposition during the late Pleistocene and the Holocene echoes past supernova activity.

7. A Supernova at 50 pc: Effects on the Earth's Atmosphere and Biota.

Review 8. Setting the stage for habitable planets.

9. Abundance of live ²⁴⁴Pu in deep-sea reservoirs on Earth points to rarity of actinide nucleosynthesis.

10. The lunar surface as a recorder of astrophysical processes.