Direct imaging of exoplanets in the vicinity of the star with high contrast instruments

我们为斯巴鲁望远镜开发了一种高对比度成像相机。这台名为斯巴鲁日冕极端自适应光学（SCExAO）的仪器在我们的努力下得到了极大的改进。我们研制并安装了两个高灵敏度波前传感器。这些传感器实时、高精度地测量光束中的微小残余像差，然后使用可变形反射镜（DM）来校正像差。这两个传感器工作在可见光（金字塔波前传感器）和红外光（低阶波前传感器）。我们已经将它们集成到SCExAO系统中，使其成为一个高性能相机，用于成像系外行星和附近恒星周围的磁盘。SCExAO仪器已经在天空进行了测试，现在从2014年开始提供科学使用。我们的团队现在正在帮助日本和国际上的科学家使用这个强大的仪器来研究系外行星和附近恒星周围的圆盘。

We have developed a high contrast imaging camera for the Subaru Telesccope. The instrument, named Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) has been greatly improved during our effort. We have developed and installed two high sensitive wavefront sensors in the instrument. These sensors measures in real time, with high accuracy, the small residual aberrations in the beam, and then use a deformable mirror(DM) to correct the aberrations. The two sensors work in visible light (pyramid wavefront sensor) and infrared light (low order wavefront sensor). We have integrated them in the SCExAO system, making it a high performance camera for imaging exoplanets and disks around nearby stars. The SCExAO instrument has been tested on-sky and is now offered for scientific use starting in year 2014. Our team is now helping scientists, both in Japan and internationally, to use this powerful instrument to study exoplanets and disks around nearby stars.