Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1126/science.aai8703 |
Cassini finds molecular hydrogen in the Enceladus plume: Evidence for hydrothermal processes | |
Waite, J. Hunter1; Glein, Christopher R.1; Perryman, Rebecca S.1; Teolis, Ben D.1; Magee, Brian A.1; Miller, Greg1; Grimes, Jacob1; Perry, Mark E.2; Miller, Kelly E.1; Bouquet, Alexis1; Lunine, Jonathan I.3,4; Brockwell, Tim1; Bolton, Scott J.1 | |
2017-04-14 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 356期号:6334页码:155-159 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Saturn's moon Enceladus has an ice-covered ocean; a plume of material erupts from cracks in the ice. The plume contains chemical signatures of water-rock interaction between the ocean and a rocky core. We used the Ion Neutral Mass Spectrometer onboard the Cassini spacecraft to detect molecular hydrogen in the plume. By using the instrument's open-source mode, background processes of hydrogen production in the instrument were minimized and quantified, enabling the identification of a statistically significant signal of hydrogen native to Enceladus. We find that the most plausible source of this hydrogen is ongoing hydrothermal reactions of rock containing reduced minerals and organic materials. The relatively high hydrogen abundance in the plume signals thermodynamic disequilibrium that favors the formation of methane from CO2 in Enceladus' ocean. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000399013800028 |
WOS关键词 | NEUTRAL MASS-SPECTROMETER ; WATER ; FIELD ; GRAVITY ; OCEAN ; CORE ; LIFE ; ION |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/195820 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Southwest Res Inst, Space Sci & Engn Div, 6220 Culebra Rd, San Antonio, TX 78238 USA; 2.Johns Hopkins Univ, Appl Phys Lab, Johns Hopkins Rd, Laurel, MD 20723 USA; 3.Cornell Univ, Dept Astron, Ithaca, NY 14853 USA; 4.Cornell Univ, Carl Sagan Inst, Ithaca, NY 14853 USA |
推荐引用方式 GB/T 7714 | Waite, J. Hunter,Glein, Christopher R.,Perryman, Rebecca S.,et al. Cassini finds molecular hydrogen in the Enceladus plume: Evidence for hydrothermal processes[J]. SCIENCE,2017,356(6334):155-159. |
APA | Waite, J. Hunter.,Glein, Christopher R..,Perryman, Rebecca S..,Teolis, Ben D..,Magee, Brian A..,...&Bolton, Scott J..(2017).Cassini finds molecular hydrogen in the Enceladus plume: Evidence for hydrothermal processes.SCIENCE,356(6334),155-159. |
MLA | Waite, J. Hunter,et al."Cassini finds molecular hydrogen in the Enceladus plume: Evidence for hydrothermal processes".SCIENCE 356.6334(2017):155-159. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论