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HK: Hadronen und Kerne

HK 53: Nuclear Astrophysics IV

HK 53.10: Talk

Wednesday, March 18, 1998, 16:30–16:45, G

1.156 MeV 44Ti Gamma-Ray Line Emission from Galactic SNRs — •Anatoli Iyudin — Max-Planck-Institut fuer Extraterrestrische Physik Postfach 1603 85740 Garching

The discovery by COMPTEL of the 44Ti line emission at 1.156 MeV from the youngest galactic SNR Cas A has opened a new window for the Galactic SNR properties investigation. This discovery also shows the way that could help to unhide missing remnants of the young galactic SNe that should have happened during past 300 years. The more sensitive instruments onboard of the next gamma-ray observatory INTEGRAL (SPI, IBIS) will have chances to extend investigations of the known and missing young galactic SNRs by their signature in the 1.156 MeV and 68 and 78 keV line emission, and to provide important input for the nucleosynthesis theory. Present achievements and future experimental results of the galactic survey in the 44Ti line(s) emission are discussed and implications for the nucleosynthesis theory are outlined.