| 研究概要 |
The Grant-in-aid fund allowed me to advance in the analysis of intensive, early-time observations of supernovae of different types. I spent the research period working with large data sets (especifically of Type Ia supernovae), and new technologies (such as the X-Shooter data of SN 2010ae and 2010as. I was also able to collaborate with experts in modelling (which led to publications with M. Bersten, M. Tanaka, K. Maeda, L. Dessart, etc.). Intensive collaboration was done with researchers in Chile, Japan and Europe. This led to continuing observing projects, including successful HST and Subaru proposals to study the progenitor of SN 2011dh (see Bersten et al. 2012). The work on Type Ia supernova has been very fruitful, with several works published on the spectroscpic properties (Folatelli et al 2013), detection of unburned material (Folatelli et al. 2012), dust-extinction properties (Forster et al. 2013, Phillips et al. 2013). FY2013 was also dedicated to the study of stripped-envelope core-collapse supernovae such as iPTF13bvn (Bersten et al., submitted), and SN 2010as (Folatelli et al., soon to be
submitted). These supernovae are very important because they allowed us to learn how stars can loose thier outer envelopes before exploding.
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