Search for Recent ⁶⁰Fe Deposition in Antarctic Snow via AMS

⁶⁰Fe with a half-life of 2.6 Myr [1] is produced in stellar Environments and ejected into space mainly by core-collapse supernovae. Due to its long half-life, traces of ⁶⁰Fe were deposited and incorporated on Earth and on the Moon and have been detected there [2,3,4,5].
Here, a new possible reservoir will be presented: Antarctic snow.
This time, in contrast to former investigations, any signal detected would be recent material which might origin from the local interstellar cloud. 500 kg of Antarctic snow were chemically processed and are going to be analyzed by AMS in Munich at the 14 MV tandem. First results for ⁶⁰Fe measurements will be presented as well as chemical extraction methods applied.
[1] Rugel et. al. ; Phys. Rev. Lett. 103, 072502 (2009)
[2] Knie et. al. ; Phys. Rev. Lett. 93, 171103 (2004)
[3] Ludwig et. al. ; PNAS 113 (33), 9232-9237 (2016)
[4] Wallner et. al. ; Nature 532, 69-72 (2016)
[5] Fimiani et. al. ; Phys. Rev. Lett. 116, 151104 (2016)