OSSE observations of Galactic 511 keV positron annihilation radiation - Initial phase 1 results

Details OSSE observations of Galactic 511 keV positron annihilation radiation - Initial phase 1 results OSSE observations of Galactic 511 keV positron annihilation radiation - Initial phase 1 results

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...413l..85p&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 413, no. 2, p. L85-L88.

Other

36

Galactic Nuclei, Galactic Radiation, Gamma Ray Observatory, Nuclear Fusion, Positron Annihilation, Imaging Spectrometers, Interstellar Matter, Scintillation

Scientific paper

The Oriented Scintillation Spectrometer Experiment (OSSE) on the Compton Gamma-Ray Observatory (GRO) has performed numerous observations of the Galactic plane and Galactic center region to measure the distribution of Galactic 511 keV positron annihilation radiation and to search for time variability of the emission. The initial 511 keV line fluxes for the observations performed during the first 18 months of the GRO mission are presented. The 511 keV line flux for a typical Galactic center observation is (2.5 +/- 0.3) x 10 exp -4 gamma/sq cm per sec, where the quoted uncertainty represents the 1 sigma statistical uncertainty. No statistically significant time variability of the line flux has been observed; the 3 sigma upper limit to daily variations from the mean is 3 x 10 exp -4 gamma/sq cm per sec. The distribution of Galactic 511 keV positron annihilation radiation implied by the OSSE observations is discussed and compared with observations by other instruments.

Affiliated with

Also associated with

No associations

Rating

OSSE observations of Galactic 511 keV positron annihilation radiation - Initial phase 1 results does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with OSSE observations of Galactic 511 keV positron annihilation radiation - Initial phase 1 results, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and OSSE observations of Galactic 511 keV positron annihilation radiation - Initial phase 1 results will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1491431