Actions for Pre-nebular Light Curves of SNe I [electronic resource].

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Pre-nebular Light Curves of SNe I [electronic resource].

Published
Washington, D.C. : United States. National Nuclear Security Administration, 2017.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description
Article numbers 33 : digital, PDF file
Additional Creators
Los Alamos National Laboratory, United States. National Nuclear Security Administration, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
We compare analytic predictions of supernova light curves with recent high-quality data from SN2011fe (Ia), KSN2011b (Ia), and the Palomar Transient Factory and the La Silla-QUEST variability survey (LSQ) (Ia). Because of the steady, fast cadence of observations, KSN2011b provides unique new information on SNe Ia: the smoothness of the light curve, which is consistent with significant large-scale mixing during the explosion, possibly due to 3D effects (e.g., Rayleigh–Taylor instabilities), and provides support for a slowly varying leakage (mean opacity). For a more complex light curve (SN2008D, SN Ib), we separate the luminosity due to multiple causes and indicate the possibility of a radioactive plume. The early rise in luminosity is shown to be affected by the opacity (leakage rate) for thermal and non-thermal radiation. A general derivation of Arnett's rule again shows that it depends upon all processes heating the plasma, not just radioactive ones, so that SNe Ia will differ from SNe Ibc if the latter have multiple heating processes.
Report Numbers
E 1.99:la-ur--16-29080
la-ur--16-29080
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Note
Published through SciTech Connect.
08/29/2017.
"la-ur--16-29080"
The Astrophysical Journal (Online) 846 1 ISSN 1538-4357 AM
W. David Arnett; Christopher Fryer; Thomas Matheson.
Funding Information
AC52-06NA25396
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