Detection of γ - ray lines from interstellar 60 Fe by the high resolution spectrometer SPI

Abstract

Received Abstract. It is believed that core-collapse supernovae (CCSN), occurring at a rate ∼once per century, have seeded the interstellar medium with long-lived radioisotopes such as 60 Fe (half-life 1.5 Myr), which can be detected by the γ-rays emitted when they β-decay. Here we report the detection of the 60 Fe decay lines at 1173 keV and 1333 keV with… (More)

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