arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.04772astro-ph.EP
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云的诅咒

The curse of clouds

Joanna K. Barstow

摘要:

近年来,对凌日系外行星的光谱观测大幅增加,这是第一次让我们能够寻找它们大气特性的广泛趋势。对这些观测结果的分析表明,即使对于高辐射的热对流层,气溶胶也是一种常见的存在,必须在建模工作中加以考虑。对于炎热的天气来说,另一个挑战是整个地球的温度变化很大,这可能会导致部分或斑块状的云层覆盖。由于我们的观测能力将随着詹姆斯韦伯太空望远镜的发射而进一步增加,预计将于2021年秋季发射,因此社区正在努力准备建模和分析工具,以便能够恢复有关热系外行星上可变和不规则云覆盖的信息。

英文摘要:

In recent years, a vast increase in spectroscopic observations of transiting exoplanets has for the first time allowed us to search for broad trends in their atmospheric properties. Analysis of these observations has revealed that, even for the highly irradiated hot Jupiters, aerosol is a common presence and must be accounted for in modelling efforts. An additional challenge for hot Jupiters is the large variation in temperature across the planet, which is likely to result in partial or patchy cloud cover. As our observational capability is due to increase further with the launch of the James Webb Space Telescope, anticipated in autumn 2021, community efforts are underway to prepare modelling and analysis tools capable of recovering information about variable and patchy cloud coverage on hot exoplanets

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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