Observational Studies on Supernova Shock Breakouts

我们使用1米木曾施密特望远镜及其宽视场光学成像仪木曾宽视场照相机进行了一次名为木曾超新星巡天的超新星巡天。KISS的独特之处在于其1小时间隔的高节奏观测。KISS的主要目的是首次在光学上发现理论上预言已久的超新星激波爆发现象。通过比较激波爆发的光变曲线，我们改进了我们的理论模型，并利用它来探索宇宙星星的形成历史，直到早期宇宙。在这项研究中，我们首先完成了KISS不可或缺的KWFC过滤器交换系统，然后从2012年4月开始KISS观察。在调查开始之前，我们发现了大约40颗超新星，并向中央天文电报局报告了7颗新的超新星。我们没有发现冲击爆发，但成功地建立了自动数据处理系统和快速跟踪框架，这是本研究所必需的。我们计划使用8.2米斯巴鲁望远镜及其宽视场成像仪Suprime-Cam和Hyper Suprime-Cam进行观测，以发现遥远的冲击爆发，但由于它们的一些故障，我们的观测被取消了。

We carried out a supernova survey called Kiso Supernova Survey (KISS) using 1-m Kiso Schmidt telescope and its wide-field optical imager, Kiso Wide Field Camera (KWFC). The uniqueness of KISS is its high cadence observation of 1-hour interval. The main purpose of KISS is to the first optical discovery of a shock breakout phenomenon of a supernova which has been predicted theoretically for a long time. By comparing of a light curve of a shock breakout, we sophisticate our theoretical model and utilize it to explore cosmic star formation history up to the early universe. In this study, we first completed the filter exchanger system for KWFC which is indispensable for KISS and then started the KISS observations from April 2012. We discovered about 40 supernovae as expected before the survey started and reported 7 new supernovae to the Central Bureau for Astronomical Telegrams. We could not discover shock breakouts but succeeded in establishing automatic data reduction system and quick follow-up framework which is essential for this study. We were planning to conduct observations using the 8.2-m Subaru telescope and its wide-field imagers, Suprime-Cam and Hyper Suprime-Cam for distant shock breakout discoveries but our observations were cancelled due to some troubles of them.