标题： 太阳元素丰度 显示英文标题

标题： Solar Elemental Abundances

摘要： 对太阳系元素丰度历史的回顾，以及对CI球粒陨石和太阳数据的元素和同位素丰度的新评估。 太阳元素丰度或太阳系元素丰度指的是整个太阳系中的化学元素组合。 太阳包含了太阳系中超过99%的质量，因此太阳的成分是整个太阳系成分的良好代表。 太阳系的成分可以视为分子云的整体成分，该分子云来自星际介质，太阳系约在45.67亿年前由此形成。 天文学和宇宙化学的活跃研究领域模型化了具有太阳成分的分子云坍缩为带有行星系统的恒星，以及在行星形成和分化过程中元素的物理和化学分馏。 太阳系的成分是从中衍生出所有太阳系物体（太阳、类地行星、气态巨行星、行星卫星和月亮、小行星、柯伊伯带天体和彗星）的初始成分。 （摘要截断）。 显示英文摘要

摘要： Review of the history of solar system elemental abundances with a new assessment of elemental and isotopic abundances from CI-chondrites and solar data. Solar elemental abundances, or solar system elemental abundances refer to the complement of chemical elements in the entire solar system. The sun contains more than 99-percent of the mass in the solar system and therefore the composition of the sun is a good proxy for the composition of the overall solar system. The solar system composition can be taken as the overall composition of the molecular cloud within the interstellar medium from which the solar system formed 4.567 billion years ago. Active research areas in astronomy and cosmochemistry model collapse of a molecular cloud of solar composition into a star with a planetary system, and the physical and chemical fractionation of the elements during planetary formation and differentiation. The solar system composition is the initial composition from which all solar system objects (the sun, terrestrial planets, gas giant planets, planetary satellites and moons, asteroids, Kuiper-belt objects, and comets) were derived. (Abstract truncated).