1999/12/07 by J. Knödlseder, Jurgen Knodlseder, Knodlseder, Jurgen
Engineering · Physics and Astronomy · #Astrophysics (astro-ph) #Astrophysics and Cosmic Phenomena #FOS: Physical sciences #Neutrino Physics Research #Particle accelerators and beam dynamics #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/9912132
7 pages, 3 figures, Proceedings 'Astronomy with Radioactivities', edited by R. Diehl and D. Hartmann, December 1999
arxiv created 1999/12/07 · openalex publication_date 1999/12/07 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Gamma-ray line observations provide a versatile tool for studies of nucleosynthesis processes and supernova physics. In particular, the observation of radioactive species in the interstellar medium probes recent nucleosynthesis activity on various time-scales for different kinds of sources. Considerable progress in gamma-ray instrumentation during the last decades has led to the discovery of several cosmic gamma-ray lines. The best studied of these lines is today the 1.809 MeV line attributed to the decay of radioactive 26Al within the interstellar medium. In this review, recent observational results are presented and their astrophysical implications are discussed.