# Interstellar ^{60}Fe in Antarctica.

@article{Koll2019InterstellarI,
title={Interstellar ^\{60\}Fe in Antarctica.},
author={Dominik Koll and G. Korschinek and Th. Faestermann and Jose M. Gomez-Guzman and Sepp Kipfstuhl and Silke Merchel and Jan M. Welch},
journal={Physical review letters},
year={2019},
volume={123 7},
pages={
072701
}
}
• D. Koll, +4 authors J. Welch
• Published 12 August 2019
• Physics, Medicine, Environmental Science
• Physical review letters
Earth is constantly bombarded with extraterrestrial dust containing invaluable information about extraterrestrial processes, such as structure formation by stellar explosions or nucleosynthesis, which could be traced back by long-lived radionuclides. Here, we report the very first detection of a recent ^{60}Fe influx onto Earth by analyzing 500 kg of snow from Antarctica by accelerator mass spectrometry. By the measurement of the cosmogenically produced radionuclide ^{53}Mn, an atomic ratio of…

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## References

SHOWING 1-10 OF 44 REFERENCES
Interstellar ^{60}Fe on the Surface of the Moon.
The concentration of the cosmic ray produced isotope ^{53}Mn, measured in the same samples, proves the supernova origin of the ^{60}Fe and deduces a reliable value for the local interstellar fluence in the range of 1×10^{8}  at/cm^{2}.
Indication for Supernova Produced 60 Fe Activity on Earth
• Physics
• 1999
In a deep ocean ferromanganese crust an excess of ${}^{60}\mathrm{Fe}$ radioactivity was measured by means of high sensitivity accelerator mass spectrometry. The enhanced concentrations measured in
Recent near-Earth supernovae probed by global deposition of interstellar radioactive 60Fe
The findings indicate multiple supernova and massive-star events during the last ten million years at distances of up to 100 parsecs, which indicates that a few per cent of fresh 60Fe was captured in dust and deposited on Earth.
Radioactive Iron Rain: Transporting $^{60}$Fe in Supernova Dust to the Ocean Floor
• Physics
• 2016
Several searches have found evidence of $^{60}$Fe deposition, presumably from a near-Earth supernova (SN), with concentrations that vary in different locations on Earth. This paper examines various
Cosmic ray exposure and pre-atmospheric size of the Gebel Kamil iron meteorite
Cosmogenic He, Ne, and Ar as well as the radionuclides 10Be, 26Al, 36Cl, 41Ca, 53Mn, and 60Fe have been determined on samples from the Gebel Kamil ungrouped Ni-rich iron meteorite by noble gas mass
An Update on Radiochemical Separation Techniques for the Determination of Long-Lived Radionuclides via Accelerator Mass Spectrometry
• Chemistry
• 1999
Long-lived radionuclides produced by cosmic rays in extraterrestrial matter not only preserve information about the irradiated objects themselves, e.g. meteorites, Moon or Mars, but they also give
60Fe anomaly in a deep-sea manganese crust and implications for a nearby supernova source.
• Physics, Medicine
Physical review letters
• 2004
A well resolved time profile of the 60Fe concentration in a deep-sea ferromanganese crust is measured and a highly significant increase 2.8 Myr ago is found.
Evidence for nearby supernova explosions.
• Physics, Medicine
Physical review letters
• 2002
It is proposed that approximately 2 Myr ago, one of the SNe exploded close enough to Earth to seriously damage the ozone layer, provoking or contributing to the Pliocene-Pleistocene boundary marine extinction.
Time-resolved 2-million-year-old supernova activity discovered in Earth’s microfossil record
• P. Ludwig, +11 authors G. Rugel
• Geology, Medicine
Proceedings of the National Academy of Sciences
• 2016
A time-resolved 60Fe signal residing, at least partially, in a biogenic reservoir is reported through the direct detection of live 60Fe atoms contained within secondary iron oxides, among which are magnetofossils, the fossilized chains of magnetite crystals produced by magnetotactic bacteria.
Discovery of Jovian dust streams and interstellar grains by the Ulysses spacecraft
ON 8 February 1992, the Ulysses spacecraft flew by Jupiter at a distance of 5.4 AU from the Sun. During the encounter, the spacecraft was deflected into a new orbit, inclined at about 80° to the