The role and diversity of fullerenes in space

富勒烯在太空中的作用和多样性

• 批准号: RGPIN-2016-06047
• 负责人: Cami, Jan
• 金额: $ 1.97万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=633433
• 关键词: role; diversity; fullerenes; space

The Universe contains a wide variety of carbonaceous molecules and dust grains that are first formed around red giant stars when they eject their outer envelopes into the interstellar medium. This carbonaceous material is further processed, first by intense UV radiation when the hot stellar core is exposed and lights up the surrounding material as a planetary nebula; later by energetic radiation and particles in the interstellar medium. Only the most stable species, such as buckyballs, can survive the rigors of space. Eventually, this material collects in the form of giant molecular clouds in which the next generation of stars and planets are formed – seeded thus with the molecules and dust ejected by red giant stars.

宇宙中含有各种各样的碳质分子和尘埃颗粒，这些分子和尘埃颗粒最初是在红巨星周围形成的，当时它们将外层包裹层喷射到星际介质中。这种含碳物质被进一步处理，首先是强烈的紫外线辐射，当炽热的恒星核心暴露出来，照亮周围的物质，形成行星状星云；后来由高能辐射和星际介质中的粒子。只有最稳定的物种，比如巴基球，才能在严酷的太空环境中生存下来。最终，这些物质以巨大分子云的形式聚集在一起，下一代恒星和行星就在其中形成——因此，红巨星喷射出的分子和尘埃就为它们埋下了种子。