Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1126/science.aam6036 |
Identification of a primordial asteroid family constrains the original planetesimal population | |
Delbo, Marco1; Walsh, Kevin2; Bolin, Bryce1; Avdellidou, Chrysa3; Morbidelli, Alessandro1 | |
2017-09-08 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 357期号:6355页码:1026-+ |
文章类型 | Article |
语种 | 英语 |
国家 | France; USA; Netherlands |
英文摘要 | A quarter of known asteroids is associated with more than 100 distinct asteroid families, meaning that these asteroids originate as impact fragments from the family parent bodies. The determination of which asteroids of the remaining population are members of undiscovered families, or accreted as planetesimals from the protoplanetary disk, would constrain a critical phase of planetary formation by unveiling the unknown planetesimal size distribution. We discovered a 4-billion-year-old asteroid family extending across the entire inner part of the main belt whose members include most of the dark asteroids previously unlinked to families. This allows us to identify some original planetesimals, which are all larger than 35 kilometers, supporting the view of asteroids being born big. Their number matches the known distinct meteorite parent bodies. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000409455700041 |
WOS关键词 | EULALIA |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/196826 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Cote Azur, CNRS Lagrange, Observ Cote Azur, CS 34229, F-06304 Nice 4, France; 2.Southwest Res Inst, 1050 Walnut St,Suite 300, Boulder, CO 80302 USA; 3.European Space Agcy, Directorate Sci, Sci Support Off, Keplerlaan 1, NL-2201 AZ Noordwijk, ZH, Netherlands |
推荐引用方式 GB/T 7714 | Delbo, Marco,Walsh, Kevin,Bolin, Bryce,et al. Identification of a primordial asteroid family constrains the original planetesimal population[J]. SCIENCE,2017,357(6355):1026-+. |
APA | Delbo, Marco,Walsh, Kevin,Bolin, Bryce,Avdellidou, Chrysa,&Morbidelli, Alessandro.(2017).Identification of a primordial asteroid family constrains the original planetesimal population.SCIENCE,357(6355),1026-+. |
MLA | Delbo, Marco,et al."Identification of a primordial asteroid family constrains the original planetesimal population".SCIENCE 357.6355(2017):1026-+. |
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