SEARCH FOR 1.809 MEV EMISSION OF AL-26 FROM NEARBY SUPERNOVA-REMNANTSUSING COMPTEL

Authors
KNODLSEDER J OBERLACK U DIEHL R CHEN W GEHRELS N
Citation
J. Knodlseder et al., SEARCH FOR 1.809 MEV EMISSION OF AL-26 FROM NEARBY SUPERNOVA-REMNANTSUSING COMPTEL, Astronomy & Astrophysics. Supplement series, 120(4), 1996, pp. 339-342
Citations number
31
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy & Astrophysics. Supplement series → ACNP
ISSN journal
03650138
Volume
120
Issue
4
Year of publication
1996
Pages
339 - 342
Database
ISI
SICI code
0365-0138(1996)120:4<339:SF1MEO>2.0.ZU;2-4
Abstract
We report the negative results of our searches in COMPTEL data for 1.8 09 MeV gamma-ray line emission from four localized regions which conta in nearby supernova remnants (SNRs). The upper flux limits (2 sigma) a re found to be in the range of 1.4 10(-5) to 2.4 10(-5) photons s(-1) cm(-2). These upper limits do not severely constrain the theoretical A l-26 yields from individual core collapse supernovae due to large unce rtainties in the SNR distances and the nature of the progenitor stars.