ExoMol: molecular line lists for exoplanet and other atmospheres

ExoMol: molecular line lists for exoplanet and other atmospheres
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ExoMol:系外行星和其他大气层的分子谱系列表

DOI:
10.1111/j.1365-2966.2012.21440.x
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发表时间:
2012
影响因子:
4.8
通讯作者:
S. Yurchenko
S. Yurchenko
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
J. Tennyson;S. Yurchenko

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太阳系外行星的发现是过去二十年的重大科学进展之一。现在已经发现了数百颗行星,天文学家开始表征它们的组成和物理特征。要做到这一点需要大量的光谱数据,其中大部分无法从实验室研究中获得。 ExoMol 项目将通过提供系外行星大气中所有重要分子跃迁的光谱数据,为这一问题提供全面的解决方案。这些数据将广泛适用于其他问题,并将用于冷恒星、棕矮星和星周环境的研究。本文阐述了该项目的科学基础并回顾了该领域的先前工作。第一原理和经验调整的量子力学方法的结合将用于计算全面且非常大的旋转振动和旋转振动电子线列表。将开发处理甲烷和硝酸等较大分子的方法。 ExoMol 将依赖这些发展和最先进的技术的使用
The discovery of extrasolar planets is one of the major scientific advances of the last two decades. Hundreds of planets have now been detected and astronomers are beginning to characterize their composition and physical characteristics. To do this requires a huge quantity of spectroscopic data most of which are not available from laboratory studies. The ExoMol project will offer a comprehensive solution to this problem by providing spectroscopic data on all the molecular transitions of importance in the atmospheres of exoplanets. These data will be widely applicable to other problems and will be used for studies on cool stars, brown dwarfs and circumstellar environments. This paper lays out the scientific foundations of this project and reviews previous work in this area. A mixture of first principles and empirically tuned quantum mechanical methods will be used to compute comprehensive and very large rotation–vibration and rotation–vibration– electronic line lists. Methodologies will be developed for treating larger molecules such as methane and nitric acid. ExoMol will rely on these developments and the use of state-of-the-art
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影响因子: 2.3
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