天体生物学
火星探测计划
拉曼光谱
光谱学
红外线的
行星
外星生命
傅里叶变换红外光谱
材料科学
太赫兹辐射
化学
物理
光学
天文
光电子学
作者
Elisa Fardelli,Annalisa D’Arco,S. Lupi,Daniela Billi,Ralf Moeller,Mariangela Cestelli Guidi
标识
DOI:10.1016/j.saa.2022.122148
摘要
In the last decades, Mars has been widely studied with on-site missions and observations, showing a planet that could have hosted life in the past. For this reason, the recent and future space missions on the red planet will search for traces of past and, possibly, present life. As a basis for these missions, Space Agencies, such as the European Space Agency, have conducted many experiments on living organisms, studying their behavior in extraterrestrial conditions, learning to recognize their biosignatures with techniques remotely controllable such as Raman spectroscopy. Among these organisms, the radioresistant cyanobacterium Chroococcidiopsis was irradiated during the STARLIFE campaign with strong radiative insults. In this article we have investigated this cyanobacterium using Raman spectroscopy and extended the characterization of its biosignatures and its response to the radiative stress to the mid- Infrared and Terahertz spectral region using the Fourier Transform InfraRed (FT-IR) and Terahertz Time Domain spectroscopy (THz- TDs), which demonstrates the compatibility and suitability of these techniques for future space missions.
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