The Link Between the Local Bubble and Radioisotopic Signatures on Earth

Autor(en)

Jenny Feige, Dieter Breitschwerdt, Anton Wallner, Michael M. Schulreich, Norikazu Kinoshita, Michael Paul, Christian Dettbarn, L. Keith Fifield, Robin Golser, Maki Honda, Ulf Linnemann, Hiroyuki Matsuzaki, Silke Merchel, Georg Rugel, Peter Steier, Stephen G. Tims, Stephan R. Winkler, Takeyasu Yamagata

Abstrakt

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.

Organisation(en)

Isotopenphysik

Externe Organisation(en)

Technische Universität Berlin, Australian National University, Shimizu Corporation, Hebrew University Jerusalem, Universität Heidelberg, University of Tsukuba, Senckenberg Naturhistorische Sammlungen Dresden, University of Tokyo, Helmholtz-Zentrum Dresden-Rossendorf, Nihon University

Journal

JPS Conference Proceedings

Band

14

Anzahl der Seiten

4

DOI

https://doi.org/10.7566/JPSCP.14.010304

Publikationsdatum

11-2016

Peer-reviewed

Ja

ÖFOS 2012

103014 Kernphysik, 103004 Astrophysik

Schlagwörter

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/46aebb0e-5b0f-4822-91ae-4509cbda889f