Modelling the early time behaviour of type Ia supernovae: Effects of the 56Ni distribution
Abstract
Despite being generally regarded as a homogeneous group, it is becoming increasingly evident that normal SNe Ia can show significant diversity. Differences in the explosion mechanisms and conditions are imprinted on the light curve shapes and colours, allowing for the interrogation of the physical conditions within the supernova. In this talk, I will show how differences in the nucleosynthesis of the explosion impacts the light curves and discuss how key physical parameters (such as the density profile) have been neglected in previous studies. I will present models calculated with our radiative transfer code and show that these may be used to provide constraints on the explosion mechanism for individual objects and to determine the exact explosion date. I will also discuss what observations are necessary to constrain the properties of future objects. This will become increasingly important in future years, as upcoming surveys discover SNe at earlier times, and in greater numbers.
- Publication:
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The Extragalactic Explosive Universe: the New Era of Transient Surveys and Data-Driven Discovery
- Pub Date:
- October 2019
- DOI:
- 10.5281/zenodo.3478060
- Bibcode:
- 2019eeu..confE..33M
- Keywords:
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- Zenodo community eeu2019