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Bringing the Visible Universe into Focus with Robo-AO
Published on: February 12, 2013
在附近的恒星周围探测类似地球的行星,使用花形的隐藏器
1Center for Astrophysics and Space Astronomy, University of Colorado, Boulder, Colorado 80309, USA. cash@casa.colorado.edu
Nature
|July 11, 2006
概括
由于星光,观察类似地球的系外行星是很困难的. 一个新的外部隐形设计,可以部署在一个单独的航天器上,为直接观测附近恒星周围的陆地行星提供了一个实用的解决方案.
科学领域:
- 天文学和天体物理学
- 太阳系外行星研究
- 光学工程是指光学工程.
背景情况:
- 直接观察类似地球的系外行星受到其母恒星压倒性的亮度的严重限制.
- 基于太空的望远镜消除了大气的扭曲,但面临着来自光散射和光衍射的挑战.
- 现有的解决方案,如内部冠状动脉计和取消干扰测量,需要极其精确的波面控制.
研究的目的:
- 提出一种新的外部隐形设计,用于直接观测系外行星.
- 克服内部冠状图和干涉测量的局限性,以检测类似地球的行星.
- 提出一种技术上可行的解决方案,用于抑制系外行星研究中的恒星光.
主要方法:
- 介绍了一种新的隐形设计,使用一个大,可部署的板 (30-50米直径).
- 这种外部隐形仪被设计成以单独的望远镜 (≥1m光圈) 组成飞行.
- 该设计利用现有技术在太空任务中进行实际实施.
主要成果:
- 拟议的隐形设计实现了对系外行星检测所必需的恒星光抑制.
- 这种方法简化了其他方法所需的苛刻的光学波面控制.
- 该系统能够直接观察和研究围绕10个帕塞克远的恒星周围的陆地行星.
结论:
- 一个实用的和有效的外部隐形设计可以克服直接系外行星成像的主要挑战.
- 形成飞行与一个大的隐藏器提供了一个可行的替代方案,复杂的内部冠状动脉图.
- 这项技术为研究附近恒星系统中潜在可居住系外行星铺平了道路.
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