| 太阳系外行星的研究现状* |
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| 引用本文： | 窦江培,朱永田,任德清.太阳系外行星的研究现状*[J].自然杂志,2014,36(2):124-128. |
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| 作者姓名： | 窦江培 朱永田 任德清 |
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| 作者单位： | 1.副研究员，2研究员，中国科学院国家天文台南京天文光学技术研究所，中国科学院天文光学技术重点实验室，南京 210042；3副教授，加州州立大学北岭分校天文物理系，California 91330-8268 |
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| 基金项目： | 国家自然科学基金(11220101001、11373005、11328302);国家天文台和John Templeton Foundation基金;中科院空间科学预先研究项目(XDA04070600、XDA04075200);南京天文光学技术研究所优秀青年人才领域前沿项目 |
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| 摘 要： | 太阳系外行星探测是当今国际天文学研究的热点，其探测方法分为间接探测和直接成像。目前，已发现的上千颗系外行星主要是通过视向速度法和凌星法等间接方式探测到的，而直接成像技术将有望获取行星温度、大气等更全面的物理信息。其中，通过对类太阳恒星宜居带内的类地行星进行成像观测和大气光谱分析，将有望捕获太阳系外生命信号，进而解答“人类在宇宙中是否孤立？”这一基本科学问题，从而突破人类对生命的现有认识。因此，该领域的研究具有较高的公众关注度。
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| 关 键 词： | 太阳系外行星 系外生命 探测技术 地基望远镜 空间观测计划 |
| 收稿时间： | 2014-02-25 |
Current research status of exoplanets |
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| DOU Jiang-Pei,ZHU Yong-Tian,REN De-Qing.Current research status of exoplanets[J].Chinese Journal of Nature,2014,36(2):124-128. |
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| Authors: | DOU Jiang-Pei ZHU Yong-Tian REN De-Qing |
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| Institution: | 1.Associate Professor 2Professor, National Astronomical Observatories, Nanjing Institute of Astronomical Optics & Technology; Key Laboratory of Astronomical Optics & Technology, Chinese Academy of Sciences, Nanjing 210042, China；3Assocaite Professor, Physics & Astronomy Department, California State University Northridge, 18111 Nordhoff Street, Northridge, California 91330-8268 |
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| Abstract: | Exoplanets search is one of the hottest topics in modern astronomy. The detection method includes indirect detection and direct imaging. Currently, over 1 000 exoplanets have been confirmed mainly by the indirect detection method such as radial velocity. While the direct imaging study of an exoplanet will allow to characterize its important physical parameters such as the atmosphere and temperature. Furthermore, to study the atmosphere of an Earth-like exoplanet in the habitable zone of a solar type star by imaging and further spectroscopy analysis will allow us to confirm the Exo-life signal, which will help to finally answer “Are we alone in the universe?”, which is one of the most fundamental scientific questions. The research of Earth-like exoplanets will be helpful to make a breakthrough on our current knowledge of life, which has been keeping a high attention rate in public domain. |
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| Keywords: | exoplanet exo-life detection technique ground-based telescope space detection mission |
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