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Light Curves of Core-Collapse Supernovae with Substantial Mass Loss using the New Open-Source SuperNova Explosion Code (SNEC)

Morozova, Viktoriya S. and Piro, Anthony L. and Renzo, Mathieu and Ott, Christian D. and Clausen, Drew and Couch, Sean M. and Ellis, Justin and Roberts, Luke F. (2015) Light Curves of Core-Collapse Supernovae with Substantial Mass Loss using the New Open-Source SuperNova Explosion Code (SNEC). Astrophysical Journal, 814 (1). Art. No. 63. ISSN 0004-637X.

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We present the SuperNova Explosion Code (SNEC), an open-source Lagrangian code for the hydrodynamics and equilibrium-diffusion radiation transport in the expanding envelopes of supernovae. Given a model of a progenitor star, an explosion energy, and an amount and distribution of radioactive nickel, SNEC generates the bolometric light curve, as well as the light curves in different wavelength bands assuming black body emission. As a first application of SNEC, we consider the explosions of a grid of 15 M_⊙ (at zero-age main sequence) stars whose hydrogen envelopes are stripped to different extents and at different points in their evolution. The resulting light curves exhibit plateaus with durations of ∼20 − 100 days if & 1.5 − 2 M_⊙ of hydrogen-rich material is left and no plateau if less hydrogen-rich material is left. The shorter plateau lengths are unlike the Type IIP supernova light curves typically observed in nature. This suggests that, at least for zero-age main sequence masses . 20 M_⊙, hydrogen mass loss occurs as an all or nothing process, perhaps pointing to the important role binary interactions play in observed mass-stripped supernovae (i.e., Type Ib/c events). These light curves are also unlike what is typically seen for Type IIL supernovae, arguing that simply varying the amount of mass loss cannot explain these events. The most stripped models begin to show double-peaked light curves similar to what is often seen for Type IIb supernovae, confirming previous work that these supernovae can come from progenitors that have a small amount of hydrogen and a radius of ∼ 500 R_⊙.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Piro, Anthony L.0000-0001-6806-0673
Ott, Christian D.0000-0003-4993-2055
Roberts, Luke F.0000-0001-7364-7946
Additional Information:© 2015 The American Astronomical Society. Received 2015 May 25; accepted 2015 October 15; published 2015 November 17. We acknowledge helpful discussions with and feedback from J. P. Anderson, W. D. Arnett, M. Bersten, A. Burrows, L. Dessart, C. Fryer, M. Modjaz, E. S. Phinney, D. Radice, S. N. Shore, N. Smith, A. Soderberg, and C. Wheeler. We thank M. Bersten for providing us with the initial conditions necessary to reproduce her results on SN 1999em and also for generously answering our questions. We thank L. Dessart for helping us better understand the discrepancies between SNEC light curves and his results. We thank B. W. Mulligan for helping us to develope the code. Some of the ideas underlying this study were inspired by discussions at Palomar Transient Factory Theory Network workshops at the Sky House, Los Osos, CA. SNEC is available as open source from We thank Frank Timmes for allowing us to use and distribute with SNEC his equation of state and Saha solver routines. We thank the OPAL opacity project, in particular Carlos Iglesisas, allowing us to distribute their interpolation routines and opacity tables with SNEC. We thank Jason Ferguson for allowing us to distribute the low-temperature opacity tables of Ferguson et al. (2005) with SNEC. This work is supported in part by the National Science Foundation under award Nos. AST-1205732 and AST-1212170, by Caltech, and by the Sherman Fairchild Foundation. The computations were performed on the Caltech compute cluster Zwicky (NSF MRI-R2 award no. PHY-0960291), on the NSF XSEDE network under allocation TG-PHY100033, and on NSF/NCSA Blue Waters under NSF PRAC award no. ACI-1440083.
Group:TAPIR, Walter Burke Institute for Theoretical Physics
Funding AgencyGrant Number
Sherman Fairchild FoundationUNSPECIFIED
Non-Subject Keywords:hydrodynamics — radiative transfer — supernovae: general
Record Number:CaltechAUTHORS:20150615-054321068
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Official Citation:Viktoriya Morozova et al 2015 ApJ 814 63
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:58226
Deposited By: Joy Painter
Deposited On:15 Jun 2015 14:54
Last Modified:06 Sep 2017 18:11

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