The Link Between the Local Bubble and Radioisotopic Signatures on Earth

J. Feige, Dieter Breitschwerdt, Anton Wallner, Michael M. Schulreich, Norikazu Kinoshita, Michael Paul, C. Dettbarn, Keith Fifield, Robin Golser, Maki Honda, U Linnemann, Hiroyuki Matsuzaki, Silke Merchel, Georg Rugel, Peter Steier, Steve Tims, S. R. Winkler, Takeyasu Yamagata

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    Traces of 2-3 Myr old 60Fe were recently discovered in a manganese crust and in lunar samples. We have found that this signal is extended in time and is present in globally distributed deep-sea archives. A second 6.5-8.7 Myr old signature was revealed in a manganese crust. The existence of the Local Bubble hints to a recent nearby supernova-activity starting 13 Myr ago. With analytical and numerical models generating the Local Bubble, we explain the younger 60Fe-signature and thus link the evolution of the solar neighborhood to terrestrial anomalies.
    Original languageEnglish
    Title of host publicationProceedings of the 14th International Symposium on the Nuclei of the Cosmos
    Place of PublicationJapan
    PublisherJapan Physical Society
    Pages1-4
    ISBN (Print)978-4-89027-118-4
    DOIs
    Publication statusPublished - 2017
    Event14th International Symposium on the Nuclei in the Cosmos NIC-XIV (NIC2016) - Toki Messe, Niigata, Japan
    Duration: 1 Jan 2016 → …

    Conference

    Conference14th International Symposium on the Nuclei in the Cosmos NIC-XIV (NIC2016)
    Period1/01/16 → …
    OtherJune 19-24 2016

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