Galactic positron annihilation distribution and sources

Authors
Leising, MD Milne, PA
Citation
Md. Leising et Pa. Milne, Galactic positron annihilation distribution and sources, ASTROPHYS L, 38(1-6), 1999, pp. 437-440
Citations number
19
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICAL LETTERS & COMMUNICATIONS
ISSN journal
08886512 → ACNP
Volume
38
Issue
1-6
Year of publication
1999
Pages
437 - 440
Database
ISI
SICI code
0888-6512(1999)38:1-6<437:GPADAS>2.0.ZU;2-C
Abstract
We discuss constraints from recent data on the multiple components of Galac tic positron emission. The two dominant components, corresponding roughly t o the stellar bulge and disk, must be explained with a consistent descripti on of the processes occurring in the two populations. In addition to core-c ollapse supernova radioactivity in the disk, thermonuclear(Type Is) superno vae are a likely source in both components, especially considering recent w ork on their optical light curves.