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Structure Formation and Characterization in Supernova Explosions

Published online by Cambridge University Press:  05 September 2012

Patrick A. Young ,
Carola Ellinger ,
Chris Fryer  and
Gabe Rockefeller
Patrick A. Young
Affiliation:
School of Earth and Space Exploration, Arizona State UniversityP. O. Box 871404, Tempe Az, 85287, USA email: patrick.young.1@asu.edu
Carola Ellinger
Affiliation:
Department of Physics, University of Texas at Arlington502 Yates St. Science Hall Rm 108 Box 19059 Arlington, TX 76019, USA email: ellinger@uta.edu
Chris Fryer
Affiliation:
CCS Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA email: fryer@lanl.gov, gaber@lanl.gov
Gabe Rockefeller
Affiliation:
CCS Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA email: fryer@lanl.gov, gaber@lanl.gov
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Abstract

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Observations of supernova remnants show that large- and small scale structures form at various points in the explosion. We present a case study of structure formation in 3D in a 15 M⊙ supernova for different parameters. We investigate the structure formation and morphology of the Rayleigh-Taylor unstable region. We also propose a method of characterizing the sizes of overdense clumps that can be compared directly with observations. The RT instabilities result in clumps that are overdense by 1-2 orders of magnitude with respect to the ambient gas, have size scales on the level of a few% of the remnant diameter, and are not diffused after the first ~30 yrs of the remnant evolution, in the absence of a surrounding medium.

Keywords

(ISM:) supernova remnantsdiffusionhydrodynamicsmethods: numerical
Type
Poster Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S279: Death of Massive Stars: Supernovae and Gamma-Ray Bursts , April 2011 , pp. 429 - 430
Copyright
Copyright © International Astronomical Union 2012

References

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