Detection of galactic Al-26 gamma radiation by the SMM spectrometer

Details Detection of galactic Al-26 gamma radiation by the SMM spectrometer Detection of galactic Al-26 gamma radiation by the SMM spectrometer

May 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...292l..61s&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 292, May 15, 1985, p. L61-L65. Sponsorship: Bundesm

Astronomy and Astrophysics

Astrophysics

104

Aluminum 26, Galactic Radiation, Gamma Rays, Solar Maximum Mission, Gamma Ray Spectra, Novae, Nuclear Fusion, Radiant Flux Density, Supernovae

Scientific paper

The Solar Maximum Mission satellite's gamma-ray spectrometer has detected a line near 1.81 MeV in each of the three years (1980-1982) over which the Galactic center traversed the broad aperture of that instrument. No significant intensity variation is noted over this period. The Galactic center/anticenter intensity ratio is greater than 2.5, and the center of the emission is noted to be consistent with the location of the Galactic center. For an assumed source distribution which follows the more than 100 MeV Galactic gamma radiation, the total flux in the direction of the Galactic center and the measured energy of the line are consistent with the detection of a narrow gamma-ray line from interstellar Al-26 by HEAO 3 in 1979-1980.

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