8th HEAD Meeting, 8-11 September, 2004
Session 24 Supernova Remnants and the Interstellar Medium
Poster, Friday, September 10, 2004, 9:00am-10:00pm

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[24.10] Preliminary results of INTEGRAL/SPI measurements of radioactive 60Fe in the Galaxy

M. J. Harris, J. Knodlseder, P. Jean (CESR), E. Cisana (IASF Milan), G. Lichti, R. Diehl, K. Kretschmer, A. Von Kienlin (MPE Garching), J.-P. Roques (CESR), S. Schanne (CEA Saclay), G. Weidenspointner (CESR), C. Wunderer (U. C. Berkeley)

The nucleosynthesis of the isotope 60Fe is believed to occur in supernovae. After it is expelled into the interstellar medium its half-life is long enough (1.5 Myr) for many such events to contribute to a steady-state abundance, which gives rise to Galaxy-wide diffuse emission of \gamma-ray lines at 1173 keV and 1332 keV. Detection of this emission was recently reported by the {\em Reuven Ramaty High Energy Solar Spectroscopic Imager\/} experiment. Here we report preliminary results of measurements of these lines by {\em INTEGRAL\/}/SPI.

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Bulletin of the American Astronomical Society, 36 #3
© 2004. The American Astronomical Soceity.