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首页> 外文会议>Instruments, methods, and missions for astrobiology XIV >Potential Exoplanet Pseudo-Biosignatures
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Potential Exoplanet Pseudo-Biosignatures

机译：潜在的系外行星伪生物特征

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Over 500 exoplanets have been discovered so far, some being rocky, terrestrial planets. Advancing instrumentation permits spectroscopic examination of their atmospheres, and remote detection of potential of biogenic gases. Of particular interest are oxygen and methane, although other gases are considered. Short residence time of these gases implies continued renewal. Abiotic sources are considered at levels that could be misinterpreted as a pseudo-biosignature. Photodissociation of water molecules, for example, could produce an oxygen pseudo-biosignature, although generally at low levels. However, large-scale water loss events, as are thought to have occurred on Venus and Mars, could produce a substantial pseudo-biosignature.
机译：迄今为止，已经发现了500多颗系外行星，其中一些是岩石行星。先进的仪器允许对其大气进行光谱检查，并远程检测生物气的潜力。尽管考虑了其他气体，但特别令人感兴趣的是氧气和甲烷。这些气体的停留时间短意味着继续更新。非生物来源的含量可能会被误解为伪生物签名。例如，水分子的光解离可产生氧假生物签名，尽管通常水平较低。但是，据认为发生在金星和火星上的大规模失水事件可能会产生大量的伪生物签名。

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