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.

各种形式的冰遍布我们的银河系，从恒星和行星形成的巨大“分子云”，在星际空间，在我们自己的太阳系，在地球的表面，在木星和土星的卫星上，在小行星上，在彗星上。很有可能，在地球形成的年代，水是由彗星和小行星的撞击带到地球上的，这类事件曾导致6000万年前恐龙灭绝。此外，这些撞击体携带有机物质，这可能对地球上生命的出现至关重要：彗星和小行星带来生命和死亡！这个项目将研究宇宙冰是如何进化的，从胚胎恒星的环境，到太阳系的冰甚至海洋。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，来研究冰在暴露于模拟宇宙环境（如宇宙辐射和紫外线）时是如何变化的。这项工作可能会让我们对地球上的生命是如何开始的有所了解。

项目成果

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

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.