The influence of line opacity treatment in STELLA on supernova light curves

Abstract

We systematically explore the effect of the treatment of line opacity on supernova light curves. We find that it is important to consider line opacity for both scattering and absorption (i.e. thermalisation which mimics the effect of fluorescence.) We explore the impact of degree of thermalisation on three major types of supernovae: Type Ia, Type II-peculiar, and Type II-plateau. For that we use radiative transfer code STELLA and analyse broad-band light curves in the context of simulations done with the spectral synthesis code ARTIS and in the context a few examples of observed supernovae of each type. We found that the plausible range for the ratio between absorption and scattering in the radiation hydrodynamics code STELLA is (0.8-1):(0.2-0), i.e. the recommended thermalisation parameter is 0.9.

Accepted for publication in MNRAS

References in corpus (14)

• Modules for Experiments in Stellar Astrophysics (MESA)
• Time Dependent Monte Carlo Radiative Transfer Calculations For 3-Dimensional Supernova Spectra, Lightcurves, and Polarization
• Secondary Maximum in the Near-Infrared Lightcurves of Type Ia Supernovae
• Photometric and Spectroscopic Properties of Type II-P Supernovae
• An optimal hydrodynamic model for the normal Type IIP supernova 1999em
• ESC observations of SN 2005cf. I. Photometric Evolution of a Normal Type Ia Supernova
• Evidence for sub-Chandrasekhar-mass progenitors of Type Ia supernovae at the faint end of the width-luminosity relation
• Bolometric Light Curves for 33 Type II-Plateau Supernovae
• The Type II-P Supernova 2017eaw: from explosion to the nebular phase
• Matter Mixing in Aspherical Core-collapse Supernovae: Three-dimensional Simulations with Single Star and Binary Merger Progenitor Models for SN 1987A
• Evidence for Sub-Chandrasekhar Mass Type Ia Supernovae from an Extensive Survey of Radiative Transfer Models
• The white dwarf's carbon fraction as a secondary parameter of Type Ia supernovae
• The detonation of a sub-Chandrasekhar-mass white dwarf at the origin of the low-luminosity Type Ia supernova 1999by
• Transparent Helium in Stripped Envelope Supernovae

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