The inner solar system cratering record and the evolution of impactor populations

• 作 者: Robert G. Strom Renu Malhotra
• 机 构: LunarandPlanetaryLaboratory,PlanetaryScienceInstitute,NationalAstronomicalObservatory,NASAGoddardSpa
• 出 处: 天文和天体物理学研究：英文版
• 发表日期: 2015年3期
• 关键词: 太阳系 小行星带 尺寸依赖性 进化 人群 频率分布 近地天体 大小分布 solar system： formation -- minor planets as
• 基金项目: support from NSF grant #AST-1312498

We review previously published and newly obtained crater size-frequency distributions in the inner solar system. These data indicate that the Moon and the terrestrial planets have been bombarded by two populations of objects. Population 1,dominating at ea