Physics and chemistry on the surface of cosmic dust grains: a laboratory view
Physics and chemistry on the surface of cosmic dust grains: a laboratory view
复制标题
宇宙尘埃颗粒表面的物理和化学：实验室观点
DOI：
10.1080/0144235x.2021.1918498
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发表时间：
2021
影响因子：
6.1
通讯作者：
Potapov A
中科院分区：
文献类型：
--
作者：
Potapov A
尘埃颗粒在宇宙环境的物理和化学中扮演着核心角色。它们通过与恒星辐射的相互作用影响介质的光学和热学性质；为化学反应提供表面，这些化学反应负责合成相当一部分关键的天文分子；它们是鹅卵石、彗星、小行星、小行星和行星的积木。本文综述了可靠的宇宙尘埃颗粒类似物表面的物理和化学过程，如吸附、解吸、扩散和形成分子的反应，以及与扩散、半透明和致密的星际云、原恒星包层、行星形成盘和行星大气中的过程有关的实验研究。这些实验揭示的信息应该足够灵活，可以在许多不同的环境中使用。此外，我们提供了展望，讨论了新的思路、实验方法和研究方向。
Dust grains play a central role in the physics and chemistry of cosmic environments. They influence the optical and thermal properties of the medium due to their interaction with stellar radiation; provide surfaces for the chemical reactions that are responsible for the synthesis of a significant fraction of key astronomical molecules; and they are building blocks of pebbles, comets, asteroids, planetesimals, and planets. In this paper, we review experimental studies of physical and chemical processes, such as adsorption, desorption, diffusion and reactions forming molecules, on the surface of reliable cosmic dust grain analogues as related to processes in diffuse, translucent, and dense interstellar clouds, protostellar envelopes, planet-forming disks, and planetary atmospheres. The information that such experiments reveal should be flexible enough to be used in many different environments. In addition, we provide a forward look discussing new ideas, experimental approaches, and research directions.