1996/04/11 by Juergen Knoedlseder, J. Knoedlseder, U. Oberlack +11
Physics and Astronomy · #Astrophysics (astro-ph) #Astrophysics and Cosmic Phenomena #FOS: Physical sciences #Gamma-ray bursts and supernovae #Nuclear Physics and Applications #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/9604057
4 pages, accepted for publication in A&AS
arxiv created 1996/04/11 · openalex publication_date 1996/04/11 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We report the negative results of our searches in COMPTEL data for 1.809 MeV gamma-ray line emission from four localized regions which contain nearby supernova remnants (SNRs). The upper flux limits (2 Sigma) are found to be in the range of 1.4*10e-5 to 2.4*10e-5 photons/s/cm/cm. These upper limits do not severely constrain the theoretical 26Al yields from individual core collapse supernovae due to large uncertainties in the SNR distances and the nature of the progenitor stars.