Observations of the galactic center with the GSFC Low-Energy Gamma-Ray Spectrometer: Preliminary results
Abstract
The GSFC Low-Energy Gamma-Ray Spectrometer observed the galactic center on 20 November, 1981, during a balloon flight from Alice Springs, Australia. The positron annihilation line at 511 keV showed no excess over background when the galactic center was in the field-of-view the inferred upper limit to the intensity of such a feature is 1.2+/-10-3 photons/cm2-s (95 percent confidence). Continuum emission was observed between 70 keV and 1 MeV.
- Publication:
-
The Galactic Center
- Pub Date:
- May 1982
- DOI:
- 10.1063/1.33502
- Bibcode:
- 1982AIPC...83..139P
- Keywords:
-
- Astronomical Spectroscopy;
- Galactic Nuclei;
- Gamma Ray Spectrometers;
- Milky Way Galaxy;
- Balloon Flight;
- Positron Annihilation;
- Astronomy;
- 98.70.Qy;
- 98.50.Lh;
- 95.85.Qx;
- X-ray sources;
- X-ray bursts