蓝点小组过境工作小组检讨
Blue Dots Team Transits Working Group Review
摘要:
凌日行星系统提供了一个独特的机会来观测约束太阳系外行星内部(半径,成分)和大气(化学,动力学)的拟议模型。地面凌日观测(迄今已知的凌日观测系统有60多个)和多波长分光光度跟踪研究(特别是由哈勃空间望远镜和斯皮策望远镜进行的)取得了巨大成功,为下一代凌日观测项目铺平了道路,这些项目目前正在进行(CoRoT、开普勒)或计划进行。在其母星的宜居带内探测和描述凌日地球大小的行星的可能性似乎迫在眉睫。在这篇文章中,我们简要回顾了凌日技术对太阳系外行星的表征能力,总结了地面和空间凌日搜索计划的最新进展,并说明了行星凌日科学如何符合蓝点的观点。
英文摘要:
Transiting planet systems offer an unique opportunity to observationally constrain proposed models of the interiors (radius, composition) and atmospheres (chemistry, dynamics) of extrasolar planets. The spectacular successes of ground-based transit surveys (more than 60 transiting systems known to-date) and the host of multi-wavelength, spectro-photometric follow-up studies, carried out in particular by HST and Spitzer, have paved the way to the next generation of transit search projects, which are currently ongoing (CoRoT, Kepler), or planned. The possibility of detecting and characterizing transiting Earth-sized planets in the habitable zone of their parent stars appears tantalizingly close. In this contribution we briefly review the power of the transit technique for characterization of extrasolar planets, summarize the state of the art of both ground-based and space-borne transit search programs, and illustrate how the science of planetary transits fits within the Blue Dots perspective.
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