| タイトル | A Direct Path to Finding Earth-Like Planets |
| 著者（英） | Heap, Sara R.; Linder, Don J. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2009-01-04 |
| 言語 | eng |
| 内容記述 | As envisaged by the 2000 astrophysics decadal survey panel: The main goal of Terrestrial Planet Finder (TPF) is nothing less than to search for evidence of life on terrestrial planets around nearby stars . Here, we consider how an optical telescope paired with a free-flying occulter blocking light from the star can reach this goal directly, without knowledge of results from prior astrometric, doppler, or transit exoplanet observations. Using design reference missions and other simulations, we explore the potential of TPF-O to find planets in the habitable zone around their central stars, to spectrally characterize the atmospheres of detected planets, and to obtain rudimentary information about their orbits. We emphasize the importance of ozone absorption in the UV spectrum of a planet as a marker of photosynthesis by plants, algae, and cyanobacteria. |
| NASA分類 | Lunar and Planetary Science and Exploration |
| 権利 | No Copyright |
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