1.8 MeV line emission from the Cygnus region.

Details 1.8 MeV line emission from the Cygnus region. 1.8 MeV line emission from the Cygnus region.

Nov 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26a...315..237d&link_type=abstract

Astronomy and Astrophysics, v.315, p.237-242

Astronomy and Astrophysics

Astrophysics

20

Gamma Rays: Observations, Ism: Supernova Remnants, Stars: Wolf-Rayet

Scientific paper

Significant 1.8 MeV emission from the Cygnus region, attributed to the decay of radioactive ^26^Al, has been detected by COMPTEL. The COMPTEL sky-map shows diffuse, localized emission from this region with an integrated flux of (7.0+/-1.4).10^-5^photons/cm^2^/s at a significance level of 5σ. A study of ^26^Al candidate sources in the Cygnus region results in a 1.8MeV emission model that agrees well with the observed structure and intensity. Our analysis indicates that in the Cygnus region ^26^Al has mainly been produced by the combined nucleosynthesis activity of numerous young massive objects such as Wolf-Rayet stars and core collapse supernovae.

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