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Seminars/Colloquia
Universe Colloquium: Type Ia supernovae: Explosions and progenitors
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Europe/Berlin
seminar room (basement) (Universe Cluster, Garching)
seminar room (basement)
Universe Cluster, Garching
Description
Type Ia supernovae (SNe Ia) are known as the precise distance indicators that allowed the remarkable discovery of the accelerated expansion of the Universe. Despite this astounding feat, there still remain large uncertainties in many of the key issues surrounding these extremely energetic events. These uncertainties, while not being horribly detrimental to their use as distance indicators, hamper the study of the nucleosynthesis of SNe Ia and ultimately the chemical evolution of the Universe.
SNe Ia can be divided into three distinct phases. The pre-supernova evolution, the explosion itself and the expansion phase, which results in spectra and light-curves. In this talk, Wolfgang will first present findings on the progenitor phase and then discuss his work on automating spectral analysis and how it links with explosion physics and the progrintor question. Finally, he will briefly highlight the involvement of the University of Toronto into arctic astronomy and introduce transient search with the telescope CATS.
SNe Ia can be divided into three distinct phases. The pre-supernova evolution, the explosion itself and the expansion phase, which results in spectra and light-curves. In this talk, Wolfgang will first present findings on the progenitor phase and then discuss his work on automating spectral analysis and how it links with explosion physics and the progrintor question. Finally, he will briefly highlight the involvement of the University of Toronto into arctic astronomy and introduce transient search with the telescope CATS.