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

使用高对比度仪器对恒星附近的系外行星进行直接成像

• 批准号: 23340051
• 负责人: GUYON Olivier
• 金额: $ 10.32万
• 依托单位: National Astronomical Observatory of Japan
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23340051/
• 关键词: 太陽系外惑星; 補償光学; 波面センシング; 望遠鏡; カメラ; 可変形鏡; コロナグラフ; 惑星形成; 星形成; 系外惑星

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.

我们为斯巴鲁望远镜开发了一款高对比度成像相机。在我们的努力下，这款名为 Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) 的仪器得到了极大的改进。我们开发了两个高灵敏度波前传感器并将其安装在仪器中。这些传感器高精度地实时测量光束中的微小残余像差，然后使用可变形镜（DM）来校正像差。这两个传感器在可见光（金字塔波前传感器）和红外光（低阶波前传感器）下工作。我们将它们集成到 SCExAO 系统中，使其成为一款高性能相机，用于对附近恒星周围的系外行星和圆盘进行成像。 SCExAO 仪器已经在天空上进行了测试，现在从 2014 年开始可供科学使用。我们的团队现在正在帮助日本和国际上的科学家使用这种强大的仪器来研究系外行星和附近恒星周围的圆盘。

项目成果

SCExAO: First Results and On-Sky Performance

• DOI: 10.1017/s1743921313007746
• 发表时间: 2013-06
• 期刊: Proceedings of the International Astronomical Union
• 作者: T. Currie;O. Guyon;F. Martinache;C. Clergeon;M. McElwain;C. Thalmann;N. Jovanovic;Garima Singh;T. Kudo

A Highly Efficient Lucky Imaging Algorithm: Image Synthesis Based on Fourier Amplitude Selection

• DOI: 10.1086/667399
• 发表时间: 2012-08
• 期刊: Publications of the Astronomical Society of the Pacific
• 影响因子: 3.5
• 作者: V. Garrel;O. Guyon;P. Baudoz

Imaging exoplanets with MKIDs on Subaru Telescope

在斯巴鲁望远镜上使用 MKID 成像系外行星

• 作者: D. Satow;Y. Hidaka;Kiyoshi Hayashida et al.;T. Kawabata;Hidekazu TANAKA;及川仁士;Olivier Guyon
• 通讯作者: Olivier Guyon

New optical tricks to answer an old question: Are we alone ?

新的光学技巧回答了一个老问题：我们孤独吗？

• 作者: Lluis Marti Magro，Masato Shiozawa，Tomonobu Tomura，Euan Neil Richard;Nao Okazaki，Yoshihisa Obayashi，Hidekazu Tanaka，Yue Yang;Olivier Guyon
• 通讯作者: Olivier Guyon

"Adaptive Optics", Guyon, Olivier, Dunlap Institute astronomical instrumentation summer school; Toronto, Canada Aug 11-16 2014; Invited lecture (8/16/2013)(Outreach presentation, teaching lectures, and seminars)

《自适应光学》，Guyon，Olivier，邓拉普研究所天文仪器暑期学校；