Galactic positron annihilation distribution and sources

M. D. Leising, P. A. Milne

Research output: Contribution to journalArticlepeer-review


We discuss constraints from recent data on the multiple components of Galactic positron emission. The two dominant components, corresponding roughly to the stellar bulge and disk, must be explained with a consistent description of the processes occurring in the two populations. In addition to core-collapse supernova radioactivity in the disk, thermonuclear (Type Ia) supernovae are a likely source in both components, especially considering recent work on their optical light curves.

Original languageEnglish (US)
Pages (from-to)437-440
Number of pages4
JournalAstrophysical Letters and Communications
Issue number1-6
StatePublished - 1998
Externally publishedYes


  • Gamma-rays
  • Nucleosynthesis
  • Positrons
  • Supernovae

ASJC Scopus subject areas

  • Astronomy and Astrophysics


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