Origin of a possible diffuse emission at 511 keV

Conference · Sun Sep 25 04:00:00 EDT 1988 · AIP Conf. Proc.; (United States)

OSTI ID:6920745

Signore, M; Vedrenne, C

The latest observational results on the 511 keV annihilation radiation have suggested a possible diffuse origin for this emission: Share et al.-. Recently Ramaty and Lingenfelter have interpreted these observations in terms of a variable point source and a diffuse interstellar source of positrons; they have given an evaluation of /sup 26/Al and /sup 56/Co contribution to the diffuse 511 keV flux while that of /sup 44/Ti has been given more recently by Woosley. Here are discussed the nature and distribution of the various e/sup +/ sources. It is shown that the diffuse 511 keV emission can be explained by nucleosynthesis of galactic SN and novae.

• Research Organization: Ecole Normale Superieure, 24, rue Lhomond, 75231 Paris, France et Observatoire de Paris-Meudon, 92190 Medon, France
• OSTI ID: 6920745
• Report Number(s): CONF-871245-
• Conference Information: Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 170:1
• Country of Publication: United States
• Language: English

Related Subjects

640101 -- Astrophysics & Cosmology-- Cosmic Radiation
640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALKALI METAL ISOTOPES
ALUMINIUM 26
ALUMINIUM ISOTOPES
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
ASTRONOMY
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY
BETA-PLUS DECAY RADIOISOTOPES
COBALT 56
COBALT ISOTOPES
COSMIC POSITRONS
COSMIC RADIATION
COSMIC RAY SOURCES
DATA ANALYSIS
DAYS LIVING RADIOISOTOPES
DECAY
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ERUPTIVE VARIABLE STARS
EVEN-EVEN NUCLEI
FERMIONS
GALAXIES
GAMMA ASTRONOMY
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOTOPES
LEPTONS
LIGHT NUCLEI
MILKY WAY
NOVAE
NUCLEI
NUCLEOSYNTHESIS
ODD-ODD NUCLEI
POSITRONS
RADIATIONS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SODIUM 22
SODIUM ISOTOPES
STARS
SUPERNOVAE
SYNTHESIS
TITANIUM 44
TITANIUM ISOTOPES
VARIABLE STARS
YEARS LIVING RADIOISOTOPES