Hillier, D. John and Dessart, Luc (2012) Time-dependent radiative transfer calculations for supernovae. Monthly Notices of the Royal Astronomical Society, 424 (1). pp. 252-271. ISSN 0035-8711 http://resolver.caltech.edu/CaltechAUTHORS:20120817-153049287
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In previous papers we discussed results from fully time-dependent radiative transfer models for core-collapse supernova (SN) ejecta, including the Type II-peculiar SN 1987A, the more ‘generic’ SN II-Plateau, and more recently Type IIb/Ib/Ic SNe. Here we describe the modifications to our radiative modelling code, cmfgen, which allowed those studies to be undertaken. The changes allow for time-dependent radiative transfer of SN ejecta in homologous expansion. In the modelling we treat the entire SN ejecta, from the innermost layer that does not fall back on the compact remnant out to the progenitor surface layers. From our non-local thermodynamic equilibrium time-dependent line-blanketed synthetic spectra, we compute the bolometric and multiband light curves: light curves and spectra are thus calculated simultaneously using the same physical processes and numerics. These upgrades, in conjunction with our previous modifications which allow the solution of the time-dependent rate equations, will improve the modelling of SN spectra and light curves, and hence facilitate new insights into SN ejecta properties, the SN progenitors and the explosion mechanisms. cmfgen can now be applied to the modelling of all SN types.
|Additional Information:||© 2012 The Authors. Monthly Notices of the Royal Astronomical Society © 2012 RAS. Accepted 2012 April 25. Received 2012 April 25; in original form 2012 January 3. Article first published online: 1 Jun. 2012. The authors would like to thank Douglas Miller for his contributions to the development of the formal solution with relativistic terms, and the referee for careful reading of the manuscript and thoughtful comments. The authors would also like to thank Stan Woosley for the use of his hydrodynamical models.DJH acknowledges support from STScI theory grant HST-AR-11756.01.A and NASA theory grant NNX10AC80G. LD acknowledges financial support from the European Community through an International Re-integration Grant, under grant number PIRG04-GA-2008-239184. Calculations presented in this work were performed in part at the French National Super-computing Centre (CINES) on the Altix ICE JADE machine.|
|Subject Keywords:||radiative transfer; methods: numerical; stars: atmospheres; supernovae: general|
|Official Citation:||Hillier, D. J. and Dessart, L. (2012), Time-dependent radiative transfer calculations for supernovae. Monthly Notices of the Royal Astronomical Society, 424: 252–271. doi: 10.1111/j.1365-2966.2012.21192.x|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Ruth Sustaita|
|Deposited On:||17 Aug 2012 23:00|
|Last Modified:||17 Aug 2012 23:00|
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