Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981mepa.rept.....j&link_type=abstract
Unknown
Astronomy and Astrophysics
Astronomy
Galactic Nuclei, Galactic Radiation, Milky Way Galaxy, Positron Annihilation, Astronomical Spectroscopy, Balloon-Borne Instruments, Gamma Rays, Line Spectra, Particle Production, Positrons
Scientific paper
The detection of the electron-positron annihilation line flux coming from the Galactic Center as a means to estimate the rate of positron production is examined. The results of the measurements of the 511 KeV line flux made with a gamma ray experiment in the energy interval 0.3 to 3 MeV, on-board a stratospheric Balloon are presented. The detector field of view looked at the galactic longitudinal interval -31 deg L(II) +41 deg. The observed flux is (6.70 + or - 0.85) x 0.001 photons/sq cm/s, which is in good agreement with the expected flux when assuming that the Galactic Center is a line source emitting uniformly. Some likely sources of positrons are also discussed.
Benson Jennifer L.
Jardim O. D. J.
Jardim V. A. M.
Martin Inácio M.
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