| タイトル | Infrared Imaging and Characterization of Exoplanets: Can we Detect Earth-Twins on a Budget? |
| 著者（英） | Danchi, William |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2010-07-21 |
| 言語 | eng |
| 内容記述 | During the past decade considerable progress has been made developing techniques that can be used to detect and characterize Earth twins in the mid- infrared (7-20 microns). The principal technique is called nulling interferometry, and it was invented by Bracewell in the late 1970's. The nulling technique is an interferometric equivalent of an optical coronagraph. At the present time most of the technological hurdles have been overcome for a space mission to be able to begin Phase A early in the next decade, and it is possible to detect and characterize Earth-twins on a mid- sized strategic mission budget ($600-800 million). I will review progress on this exciting method of planet detection in the context of recent work on the Exoplanet Community Forum and the US Decadal Survey (Astro2010), including biomarkers, technological progress, mission concepts, the theory of these instruments, and a.comparison of the discovery space of this technique with others also under consideration. |
| NASA分類 | Astronomy |
| 権利 | No Copyright |
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