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Title: Observable Proxies For 26 Al Enhancement

We consider the cospatial production of elements in supernova explosions to find observationally detectable proxies for enhancement of {sup 26}Al in supernova ejecta and stellar systems. Using four progenitors we explore a range of 1D explosions at different energies and an asymmetric 3D explosion. We find that the most reliable indicator of the presence of {sup 26}Al in unmixed ejecta is a very low S/Si ratio ({approx} 0.05). Production of N in O/S/Si-rich regions is also indicative. The biologically important element P is produced at its highest abundance in the same regions. Proxies should be detectable in supernova ejecta with high spatial resolution multi wavelength observations, but the small absolute abundance of material injected into a proto-planetary disk makes detection unlikely in existing or forming stellar/planetary systems.
Authors:
 [1] ;  [1] ;  [2] ;  [3]
  1. Los Alamos National Laboratory
  2. ASU
  3. UNIV ARIZONA
Publication Date:
OSTI Identifier:
960677
Report Number(s):
LA-UR-08-05875; LA-UR-08-5875
Journal ID: ISSN 0004-637X; ASJOAB; TRN: US1002609
DOE Contract Number:
AC52-06NA25396
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal
Research Org:
Los Alamos National Laboratory (LANL)
Sponsoring Org:
DOE
Country of Publication:
United States
Language:
English
Subject:
79; ALUMINIUM 26; NUCLEAR REACTIONS; NUCLEOSYNTHESIS; ABUNDANCE; STARS; SUPERNOVAE; SUPERNOVA REMNANTS