Microlensing survey with MOA II 1.8m telescope

利用安装在新西兰约翰山天文台的MOA II 1.8m望远镜对银河系凸起和麦哲伦星云进行了高节奏微透镜观测。通过实时分析，发现并观察了1696个候选微透镜，并与世界范围内的后续网络合作。通过对微透镜事件的分析，得出了类似太阳系、小行星绕小宿主、巨行星绕小宿主等特征行星系统。关于行星分布的讨论已经开始了。凉爽的海王星质量行星在我们的银河系中很常见。

High cadence microlensing survey using MOA II 1.8m telescope installed at Mt. John Observatory, New Zealand have been executed toward Galactic bulge and Magellanic clouds. Using real time analysis, 1696 microlensing candidates have been found and observed collaborating with world wide follow-up network. From the analyses of microlensing events, characteristic planetary system such as solar system analogue, small planet around a small host, and giant planet around a small host. Discussion on the distribution of planets has started. Cool Neptune mass planets were found to be common in our Galaxy.