105 citations · 176 across the 5 of their papers we have counts for
5 papers
Search for beta-delayed proton emission from Be
K. Riisager, M. J. G. Borge, J. A. Briz +16
We report on an attempt to reproduce the observation of -delayed proton emission from Be through detection of the final state nucleus Be with accelerator mass sp…
Time resolved 2 million year old supernova activity discovered in Earth's microfossil record
Peter Ludwig, Shawn Bishop, Ramon Egli +11
Massive stars, which terminate their evolution as core collapse supernovae, are theoretically predicted to eject more than 1E-5 solar masses of the radioisotope 60Fe. If such an ev…
The Link Between the Local Bubble and Radioisotopic Signatures on Earth
Jenny Feige, Dieter Breitschwerdt, Anton Wallner +15
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 distrib…
AMS measurements of cosmogenic and supernova-ejected radionuclides in deep-sea sediment cores
J. Feige, A. Wallner, L. K. Fifield +6
Samples of two deep-sea sediment cores from the Indian Ocean are analyzed with accelerator mass spectrometry (AMS) to search for traces of recent supernova activity around 2 Myr ag…
The Search for Supernova-produced Radionuclides in Terrestrial Deep-sea Archives
Jenny Feige, Anton Wallner, Stephan R. Winkler +5
An enhanced concentration of 60Fe was found in a deep ocean's crust in 2004 in a layer corresponding to an age of ~2 Myr. The confirmation of this signal in terrestrial archives as…