识别凌日行星生命迹象的信息论方法

Q1 Earth and Planetary Sciences

Monthly Notices of the Royal Astronomical Society: Letters Pub Date : 2023-10-17 DOI:10.1093/mnrasl/slad156

Sara Vannah, Marcelo Gleiser, Lisa Kaltenegger

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引用次数: 0

摘要

信息理论能否为系外行星是否适宜居住提供洞见?在这里，我们将信息论应用于一系列模拟系外行星透射光谱作为诊断工具，以寻找地球模拟行星上生命的潜在特征。我们在围绕一系列主恒星运行的类地行星的三个进化时期测试了算法。詹姆斯韦伯太空望远镜和即将到来的地面和太空任务有望获得足够的高分辨率数据，信息理论可以应用于评估可居住性。这种方法为观察者提供了一个框架和工具来评估一颗系外行星是否显示出可居住的迹象。

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An Information Theory Approach to Identifying Signs of Life on Transiting Planets

Abstract Can information theory provide insights into whether exoplanets are habitable? Here we apply information theory to a range of simulated exoplanet transmission spectra as a diagnostic tool to search for potential signatures of life on Earth-analog planets. We test the algorithms on three epochs of evolution for Earth-like planets orbiting a range of host stars. The James Webb Space Telescope and upcoming ground- and space-based missions promise to achieve sufficient high-resolution data that information theory can be applied to assess habitability. This approach provides a framework and a tool for observers to assess whether an exoplanet shows signs of habitability.

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来源期刊

Monthly Notices of the Royal Astronomical Society: Letters Earth and Planetary Sciences-Space and Planetary Science

CiteScore

8.80

自引率

0.00%

发文量

136

期刊介绍： For papers that merit urgent publication, MNRAS Letters, the online section of Monthly Notices of the Royal Astronomical Society, publishes short, topical and significant research in all fields of astronomy. Letters should be self-contained and describe the results of an original study whose rapid publication might be expected to have a significant influence on the subsequent development of research in the associated subject area. The 5-page limit must be respected. Authors are required to state their reasons for seeking publication in the form of a Letter when submitting their manuscript.