Other
Scientific paper
Apr 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aipc..510...44p&link_type=abstract
THE FIFTH COMPTON SYMPOSIUM. AIP Conference Proceedings, Volume 510, pp. 44-48 (2000).
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4
Stellar Structure, Interiors, Evolution, Nucleosynthesis, Ages, Associations Of Stars In The Milky Way, Hydrostatic Stellar Nucleosynthesis, Nucleosynthesis In Novae, Supernovae, And Other Explosive Environments
Scientific paper
The COMPTEL map of the 1.809 MeV line, which is attributed to the radioactive decay of 26Al, shows significant excess emission in the Cygnus region. We investigate counterparts of this emission, based on COMPTEL data accumulated over 8 years. Previous studies suggested that this flux is due to the integrated, but unresolved, nucleosynthesis from young, massive objects like Wolf Rayet (WR) stars and core collapse supernovae. Beside a static scenario of known point sources-WR stars and SNRs-we consider OB associations in a dynamic scenario to model the observed flux in the Cygnus region. We carry out population synthesis studies to determine the time-dependent production of 26Al and also kinetic as well as radiative energy. Furthermore we consider the impact of enhanced 26Al yields probably occurring in a fraction of massive close binary systems. We compare the nucleosynthesis results of our OB association model with recent measurements in the Cygnus region. .
Diehl Roland
Hartmann Dieter H.
Oberlack Uwe
Plüschke S.
Wessolowski Ulf
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