2004/04/01 by J. Knödlseder, J. Knodlseder, Knodlseder, J. +29
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #Gamma-ray bursts and supernovae #Nuclear Physics and Applications #Nuclear physics research studies #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0404027
5 pages, to appear in the Proceedings of the 5th INTEGRAL Workshop (Munich, Germany)
arxiv created 2004/04/01 · openalex publication_date 2004/04/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The search for gamma-ray line emission from the radioactive decay of 60Fe figures among the prime scientific objectives of the INTEGRAL mission. 60Fe is believed to be primarily produced in core-collapse supernovae, although other sites, such as carbon deflagration supernovae or intermediate mass AGB stars have also been suggested. We present first results of our search for the 1173 and 1332 keV gamma-ray lines of 60Fe decay in the SPI data of the first mission year. So far we can only report upper flux limits whose levels are determined by systematic uncertainties in the treatment of the instrumental background. Once we understand the background uncertainties better, the SPI data should provide stringent constraints on 60Fe nucleosynthesis in our Galaxy.