COMPTEL observations of the 1.809 MeV gamma-ray line from galactic Al-26

Details COMPTEL observations of the 1.809 MeV gamma-ray line from galactic Al-26 COMPTEL observations of the 1.809 MeV gamma-ray line from galactic Al-26

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apjs...92..429d&link_type=abstract

The Astrophysical Journal Supplement Series, vol. 92, no. 2, p. 429-432

Astronomy and Astrophysics

Astronomy

24

Aluminum 26, Gamma Ray Astronomy, Massive Stars, Milky Way Galaxy, Radiation Distribution, Supernova Remnants, Gamma Ray Observatory, Nuclear Fusion, Wolf-Rayet Stars

Scientific paper

The COMPTEL experiment on the Compton Gamma-Ray Observatory (CGRO) has been demonstrated to be capable of imaging the Galaxy within its field of view of about 1 steradian in the 1.809 MeV gamma-ray line originating from radioactive Al-26. The combined data from the CGRO sky survey in 1991/1992 have been analyzed to provide a first map of the inner Galaxy in this gamma-ray line. The 1.809 MeV emission appears extended along the inner 70 deg of the Galactic plane, with a relatively sharp falloff outside this regime. Correlations with massive stars and supernova remnants as possible tracers of the candidate Al-26 sources are discussed.

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