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26Al and the COMPTEL 60Fe dataстатья
- Авторы: Diehl R., Wessolowski U., Oberlack U., Bloemen H., Georgii R., Iyudin A., Knödlseder J., Lichti G., Hermsen W., Morris D., Ryan J., Schoenfelder V., Strong A., von Ballmoos P., Winkler C.
- Сборник: The Fourth Compton Symposium
- Серия: AIP Conference Proceedings
- Том: 410
- Год издания: 1997
- Издательство: AIP Publishing
- Местоположение издательства: United States
- Первая страница: 1109
- Последняя страница: 1113
- DOI: 10.1063/1.54176
- Аннотация: Nucleosynthesis models predict the production of 60Fe by the same massive stars which are responsible for 26Al synthesis. With a radioactive decay time similar to 26Al, the gamma-ray line emission at 1.173 and 1.332 MeV is predicted to be ~16% of the 1.809 MeV 26Al line intensity, from the same source regions. We investigate with COMPTEL all-sky data from CGRO Phases 1-5 whether this source of 60Fe can be detected, using the known spectral signature plus the spatial distribution as imaged with COMPTEL 26Al measurements. Uncertainties in spatial signature of the instrumental and continuum background limit the sensitivity, such that only an upper limit of ~44% (2σ) is quoted at this time.
- Добавил в систему: Июдин Анатолий Федорович