论文标题
金星的质谱显示了中间云中不平衡的迹象
Venus' Mass Spectra Show Signs of Disequilibria in the Middle Clouds
论文作者
论文摘要
我们提出了从先锋金星大探头中性质谱仪获得的质谱数据的重新检查。我们对不同痕量化学物种的解释暗示了金星中间云中的氧化还原不平衡。分配数据(51.3 km)包括磷酸,硫化氢,亚硝酸,硝酸,一氧化碳,盐酸,盐酸,氰化氢,乙烷,乙烷以及潜在的氨,chl酸,chl酸和几种暂定的PXOY物种。在分配相应的碎片化产物,同位素和原子种类时,所有父离子都是鉴定的。数据揭示了在不同的氧化状态下的母离子,这意味着云中降低功率的存在,并阐明了尚待发现的化学物质的潜力。在考虑金星云的假设可居住性时,分配揭示了厌氧磷代代谢(磷酸)的潜在特征,这是无氧光合作用的电子供体(硝酸盐),氮循环的主要成分(硝酸盐,硝酸盐,硝酸盐,硝酸盐,硝酸盐,氮,ammon,ammonia,ammonia and n2)。
We present a re-examination of mass spectral data obtained from the Pioneer Venus Large Probe Neutral Mass Spectrometer. Our interpretations of differing trace chemical species are suggestive of redox disequilibria in Venus' middle clouds. Assignments to the data (at 51.3 km) include phosphine, hydrogen sulfide, nitrous acid, nitric acid, carbon monoxide, hydrochloric acid, hydrogen cyanide, ethane, and potentially ammonia, chlorous acid, and several tentative PxOy species. All parent ions were predicated upon assignment of corresponding fragmentation products, isotopologues, and atomic species. The data reveal parent ions at varying oxidation states, implying the presence of reducing power in the clouds, and illuminating the potential for chemistries yet to be discovered. When considering the hypothetical habitability of Venus' clouds, the assignments reveal a potential signature of anaerobic phosphorus metabolism (phosphine), an electron donor for anoxygenic photosynthesis (nitrite), and major constituents of the nitrogen cycle (nitrate, nitrite, ammonia, and N2).