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DOI | 10.1073/pnas.2003496117 |
Vertical angular momentum constraint on lunar formation and orbital history | |
Tian, ZhenLiang1,2; Wisdom, Jack3 | |
2020-06-22 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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ISSN | 0027-8424 |
出版年 | 2020 |
卷号 | 117期号:27页码:15460-15464 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
英文摘要 | The Moon likely formed in a giant impact that left behind a fast - rotating Earth, but the details are still uncertain. Here, we exam- ine the implications of a constraint that has not been fully exploited: The component of the Earth-Moon system's angular momentum that is perpendicular to the Earth's orbital plane is nearly conserved in Earth-Moon history, except for possible intervals when the lunar orbit is in resonance with the Earth's motion about the Sun. This condition sharply constrains the postimpact Earth orientation and the subsequent lunar orbital history. In particular, the scenario involving an initial high - obliquity Earth cannot produce the present Earth-Moon sys- tem. A low -obliquity postimpact Earth followed by the evection limit cycle in orbital evolution remains a possible pathway for producing the present angular momentum and observed lunar composition. |
英文关键词 | moon formation orbital evolution angular momentum |
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:000548351700017 |
WOS关键词 | EARTH-MOON SYSTEM ; EARLY EVOLUTION ; TIDAL DISSIPATION ; LATE ACCRETION ; LATE VENEER ; PERTURBATIONS ; INCLINATION ; OBLIQUITY ; ISOTOPES ; ORIGIN |
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/278178 |
专题 | 地球科学 |
作者单位 | 1.Univ Calif Santa Cruz, Dept Earth & Planetary Sci, Santa Cruz, CA 95064 USA; 2.Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen 518055, Peoples R China; 3.MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02139 USA |
推荐引用方式 GB/T 7714 | Tian, ZhenLiang,Wisdom, Jack. Vertical angular momentum constraint on lunar formation and orbital history[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2020,117(27):15460-15464. |
APA | Tian, ZhenLiang,&Wisdom, Jack.(2020).Vertical angular momentum constraint on lunar formation and orbital history.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,117(27),15460-15464. |
MLA | Tian, ZhenLiang,et al."Vertical angular momentum constraint on lunar formation and orbital history".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 117.27(2020):15460-15464. |
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