Spatial distribution of nucleosynthesis products in cassiopeia a: Comparison between observations and 3D explosion models

Patrick Young; Carola I. Ellinger; Frank Timmes; David Arnett; Chris L. Fryer; Gaberiel R. Rockefeller; Aimee Hungerford; Steven Diehl; Michael Bennet; Raphael Hirschi; Marco Pignatari; Falk Herwig; Georgios Magkotsios

Spatial distribution of nucleosynthesis products in cassiopeia a: Comparison between observations and 3D explosion models

Patrick Young, Carola I. Ellinger, Frank Timmes, David Arnett, Chris L. Fryer, Gaberiel R. Rockefeller, Aimee Hungerford, Steven Diehl, Michael Bennet, Raphael Hirschi, Marco Pignatari, Falk Herwig, Georgios Magkotsios

Steward Observatory

Research output: Contribution to journal › Conference article › peer-review

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.

Original language	English (US)
Journal	Proceedings of Science
State	Published - 2008
Event	10th Symposium on Nuclei in the Cosmos, NIC 2008 - Mackinac Island, MI, United States Duration: Jul 27 2008 → Aug 1 2008

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@article{3621b55f63ad4898be0ff7001415708f,

title = "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.",

author = "Patrick Young and Ellinger, {Carola I.} and Frank Timmes and David Arnett and Fryer, {Chris L.} and Rockefeller, {Gaberiel R.} and Aimee Hungerford and Steven Diehl and Michael Bennet and Raphael Hirschi and Marco Pignatari and Falk Herwig and Georgios Magkotsios",

year = "2008",

language = "English (US)",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

note = "10th Symposium on Nuclei in the Cosmos, NIC 2008 ; Conference date: 27-07-2008 Through 01-08-2008",

}

TY - JOUR

T1 - Spatial distribution of nucleosynthesis products in cassiopeia a

T2 - 10th Symposium on Nuclei in the Cosmos, NIC 2008

AU - Young, Patrick

AU - Ellinger, Carola I.

AU - Timmes, Frank

AU - Arnett, David

AU - Fryer, Chris L.

AU - Rockefeller, Gaberiel R.

AU - Hungerford, Aimee

AU - Diehl, Steven

AU - Bennet, Michael

AU - Hirschi, Raphael

AU - Pignatari, Marco

AU - Herwig, Falk

AU - Magkotsios, Georgios

PY - 2008

Y1 - 2008

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84887299931&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84887299931&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:84887299931

SN - 1824-8039

JO - Proceedings of Science

JF - Proceedings of Science

Y2 - 27 July 2008 through 1 August 2008

ER -

Spatial distribution of nucleosynthesis products in cassiopeia a: Comparison between observations and 3D explosion models

Abstract

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