Evolution of Ices: From Molecular Cloud to Ocean

冰的演化：从分子云到海洋

• 批准号: ST/M001075/1
• 负责人: Martin McCoustra
• 金额: $ 9.89万
• 依托单位: Heriot-Watt University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FM001075%2F1
• 关键词: Evolution; Ices; Molecular; Cloud; Ocean

Ices of various forms are found throughout our Milky Way Galaxy, from the large "molecular clouds" in which stars and planets form, in interstellar space, and in our own Solar System, on the surfaces of the Earth, the satellites of Jupiter and Saturn, on asteroids, and on comets. It is very likely that water wasdelivered to the Earth during its formative years by the impacts of comets and asteroids in the kind of event that exterminated the dinosaurs 60 million years ago. Furthermore, these impacting bodies carry organic material, which may have been crucial to the emergence of life on Earth: comets and asteroids bring life and death! This project will study how cosmic ice evolves, from the environments of embryonic stars, to the ices and even oceans in the Solar System. We will be using laboratory experiments, including the world's most powerful light source, the Diamond Light Source in Oxfordshire, to study how the ices change as they are exposed to simulated cosmic environments such as cosmic radiation and ultraviolet light. This work might give us a glimpse as to how life began on Earth.

从我们的银河系星系中发现了各种形式的ic，从大型的“分子云”中，恒星和行星在地球的表面，木星和土星的卫星，小行星上和彗星上形成了恒星和行星在我们自己的太阳系中形成的。在灭绝恐龙6000万年前灭绝的事件中，彗星和小行星的影响很有可能在其成长的几年中被水送往地球。此外，这些影响的身体携带有机材料，这可能对地球生命的出现至关重要：彗星和小行星带来生死！该项目将研究宇宙冰如何从胚胎恒星的环境中发展为太阳系中的冰甚至海洋。我们将使用实验室实验，包括世界上最强大的光源，牛津郡的钻石光源，以研究冰的暴露于模拟宇宙环境（例如宇宙辐射和紫外线光）时如何变化。这项工作可能使我们了解生活在地球上的开始。

项目成果

Laboratory astrochemistry of the gas phase: general discussion.

气相实验室天体化学：一般讨论。

• DOI: 10.1039/d3fd90025h
• 发表时间: 2023
• 期刊: Faraday discussions
• 影响因子: 3.4
• 作者: Balucani N

Wannier-Mott Excitons in Nanoscale Molecular Ices.

纳米级分子冰中的万尼尔-莫特激子。

• DOI: 10.1103/physrevlett.119.157703
• 发表时间: 2017
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: Chen YJ

Electron-Promoted Desorption from Water Ice Surfaces: Neutral Gas-Phase Products

水冰表面的电子促进解吸：中性气相产物

• DOI: 10.1021/acsearthspacechem.7b00028
• 发表时间: 2017
• 期刊: ACS Earth and Space Chemistry
• 影响因子: 3.4
• 作者: Abdulgalil A

Probing model interstellar grain surfaces with small molecules

• DOI: 10.1093/mnras/stv425
• 发表时间: 2015-05-11
• 期刊: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
• 影响因子: 4.8
• 作者: Collings, M. P.;Frankland, V. L.;McCoustra, M. R. S.
• 通讯作者: McCoustra, M. R. S.

Computational astrochemistry: general discussion

计算天体化学：一般讨论

• DOI: 10.1039/d3fd90027d
• 发表时间: 2023
• 期刊: Faraday Discussions
• 影响因子: 3.4
• 作者: Bromley S