Search for 1.809MeV emission of ^26^Al. from nearby supernova remnants using COMPTEL
Abstract
We report the negative results of our searches in COMPTEL data for 1.809MeV gamma-ray line emission from four localized regions which contain nearby supernova remnants (SNRs). The upper flux limits (2σ) are found to be in the range of 1.4x10^-5^ to 2.4x10^-5^photons/s/cm^2^. These upper limits do not severely constrain the theoretical ^26^Al yields from individual core collapse supernovae due to large uncertainties in the SNR distances and the nature of the progenitor stars.
- Publication:
-
Astronomy and Astrophysics Supplement Series
- Pub Date:
- December 1996
- DOI:
- 10.48550/arXiv.astro-ph/9604057
- arXiv:
- arXiv:astro-ph/9604057
- Bibcode:
- 1996A&AS..120C.339K
- Keywords:
-
- GAMMA-RAYS: OBSERVATIONS;
- NUCLEOSYNTHESIS;
- SUPERNOVAE;
- ISM: SUPERNOVA REMNANTS;
- Astrophysics
- E-Print:
- 4 pages, accepted for publication in A&