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Gamma-ray line emission from Al-26 produced by Wolf-Rayet starsThe recent satellite observations of the 1.8 MeV line from the decay of Al-26 has given a new impetus to the study of the nucleosynthesis of Al-26. The production and ejection of Al-26 by massive mass-losing stars (Of and WR stars) is discussed in the light of recent stellar models. The longitude distribution of the Al-26 gamma ray line emission produced by the galactic collection of WR stars is derived based on various estimates of their radial distribution. This longitude profile provides: (1) a specific signature of massive stars on the background of other potential Al-26 sources, as novae, supernovae, certain red giants and possibly AGB stars; and (2) a possible tool to improve the data analysis of the HEAO 3 and SMM experiments.
Document ID
19850025690
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Prantzos, N.
(Commissariat a l'Energie Atomique Saclay, France)
Casse, M.
(Commissariat a l'Energie Atomique Saclay, France)
Gros, M.
(Commissariat a l'Energie Atomique Saclay, France)
Doom, C.
(Vrije Univ. Brussels, Belgium)
Arnould, M.
(Brussels Univ.)
Date Acquired
August 12, 2013
Publication Date
August 1, 1985
Publication Information
Publication: 19th Intern. Cosmic Ray Conf - Vol. 1
Subject Category
Space Radiation
Report/Patent Number
OG-3.2-5
Report Number: OG-3.2-5
Accession Number
85N34003
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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