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Title: Pre-nebular Light Curves of SNe I

Abstract

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.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]
  1. Univ. of Arizona, Tucson, AZ (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. National Optical Astronomy Observatory, Tucson, AZ (United States)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Univ. of Arizona, Tucson, AZ (United States); National Optical Astronomy Observatory, Tucson, AZ (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1412891
Report Number(s):
LA-UR-16-29080
Journal ID: ISSN 1538-4357; TRN: US1800397
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
The Astrophysical Journal (Online)
Additional Journal Information:
Journal Volume: 846; Journal Issue: 1; Journal ID: ISSN 1538-4357
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; supernovae; SN2011fe; KSN2011b; 2008D

Citation Formats

Arnett, W. David, Fryer, Christopher, and Matheson, Thomas. Pre-nebular Light Curves of SNe I. United States: N. p., 2017. Web. doi:10.3847/1538-4357/aa8173.
Arnett, W. David, Fryer, Christopher, & Matheson, Thomas. Pre-nebular Light Curves of SNe I. United States. https://doi.org/10.3847/1538-4357/aa8173
Arnett, W. David, Fryer, Christopher, and Matheson, Thomas. 2017. "Pre-nebular Light Curves of SNe I". United States. https://doi.org/10.3847/1538-4357/aa8173. https://www.osti.gov/servlets/purl/1412891.
@article{osti_1412891,
title = {Pre-nebular Light Curves of SNe I},
author = {Arnett, W. David and Fryer, Christopher and Matheson, Thomas},
abstractNote = {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.},
doi = {10.3847/1538-4357/aa8173},
url = {https://www.osti.gov/biblio/1412891}, journal = {The Astrophysical Journal (Online)},
issn = {1538-4357},
number = 1,
volume = 846,
place = {United States},
year = {Tue Aug 29 00:00:00 EDT 2017},
month = {Tue Aug 29 00:00:00 EDT 2017}
}

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Free Publicly Available Full Text
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Cited by: 5 works
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Works referencing / citing this record:

ASASSN-18tb: a most unusual Type Ia supernova observed by TESS and SALT
journal, May 2019


SN 2017ein and the Possible First Identification of a Type Ic Supernova Progenitor
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Properties of Type-Ia Supernova Light Curves
journal, March 2019