FINDING TRACERS FOR SUPERNOVA PRODUCED {sup 26}Al
- School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287 (United States)
- Department of Physics, Arizona State University, Tempe, AZ 85287 (United States)
- Steward Observatory, University of Arizona, Tucson, AZ 85721 (United States)
- Los Alamos National Laboratory, Los Alamos, NM, 87545 (United States)
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 one-dimensional explosions at different energies and an asymmetric three-dimensional 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 multiwavelength observations, but the small absolute abundance of material injected into a proto-planetary disk makes detection unlikely in existing or forming stellar/planetary systems.
- OSTI ID:
- 21333776
- Journal Information:
- Astrophysical Journal, Vol. 699, Issue 2; Other Information: DOI: 10.1088/0004-637X/699/2/938; Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
Similar Records
SULFUR MOLECULE CHEMISTRY IN SUPERNOVA EJECTA RECORDED BY SILICON CARBIDE STARDUST
On silicon group elements ejected by supernovae type IA