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Over the last two decades, type Ia supernovae (SN Ia) have acted as one of the best probes of the expansion history of the Universe. Large-scale survey telescopes are now able to detect and observe thousands of SN Ias, to measure the dark energy equation of state with ever-increasing accuracy. For example, the Dark Energy Survey (DES) has recently finished five years of high-quality SN Ia light-curve observations, which I will fit during my PhD at RSAA. These results will form the foundation of the DES five-year photometric supernova analysis, which will produce the tightest measure of the dark energy equation of state every seen. During this talk, I will discuss the general methods used to fit a light-curve and propagate the results through to a measure of dark energy. I will then introduce the Dark Energy Survey and outline the work I will be doing for DES as part of my PhD. |
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