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Spatial Distribution of Nucleosynthesis Products in Cassiopeia A: Comparison Between Observations and 3D Explosion Models
Abstract
We examine observed heavy element abundances in the Cassiopeia A supernova remnant as a constraint on the nature of the Cas A supernova. We compare bulk abundances from 1D and 3D explosion models and spatial distribution of elements in 3D models with those derived from X-ray observations. We also examine the cospatial production of 26Al with other species. We find that the most reliable indicator of the presence of 26Al in unmixed ejecta is a very low S/Si ratio (~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.
Conference Name | 10th Symposium on Nuclei in the Cosmos |
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Conference Location | Mackinac Island, Michigan, USA |
Start Date | Jul 27, 2008 |
End Date | Aug 1, 2008 |
Publication Date | Nov 28, 2008 |
Publicly Available Date | Mar 29, 2024 |
Publisher URL | http://arxiv.org/abs/0811.4655v1 |
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