The Ginger-shaped Asteroid 4179 Toutatis: New Observations from a   Successful Flyby of Chang&apos;e-2

doi:10.1038/srep03411

CORC > 北京大学 > 信息科学技术学院

	The Ginger-shaped Asteroid 4179 Toutatis: New Observations from a Successful Flyby of Chang'e-2
	Huang, Jiangchuan ; Ji, Jianghui ; Ye, Peijian ; Wang, Xiaolei ; Yan, Jun ; Meng, Linzhi ; Wang, Su ; Li, Chunlai ; Li, Yuan ; Qiao, Dong ; Zhao, Wei ; Zhao, Yuhui ; Zhang, Tingxin ; Liu, Peng ; Jiang, Yun ; Rao, Wei ; Li, Sheng ; Huang, Changning ; Ip, Wing-Huen ; Hu, Shoucun ; Zhu, Menghua ; Yu, Liangliang ; Zou, Yongliao ; Tang, Xianglong ; Li, Jianyang ; Zhao, Haibin ; Huang, Hao ; Jiang, Xiaojun ; Bai, Jinming
刊名	scientific reports
	2013
关键词	RADAR OBSERVATIONS BINARY ASTEROIDS PHYSICAL MODEL CONTACT BINARY SPIN STATES 21 LUTETIA INERTIA IMAGES EROS
DOI	10.1038/srep03411
英文摘要	On 13 December 2012, Chang'e-2 conducted a successful flyby of the near-Earth asteroid 4179 Toutatis at a closest distance of 770 +/- 120 meters from the asteroid's surface. The highest-resolution image, with a resolution of better than 3 meters, reveals new discoveries on the asteroid, e. g., a giant basin at the big end, a sharply perpendicular silhouette near the neck region, and direct evidence of boulders and regolith, which suggests that Toutatis may bear a rubble-pile structure. Toutatis' maximum physical length and width are (4.75 x 1.95 km) +/- 10%, respectively, and the direction of the +z axis is estimated to be (250 +/- 5 degrees, 63 +/- 5 degrees) with respect to the J2000 ecliptic coordinate system. The bifurcated configuration is indicative of a contact binary origin for Toutatis, which is composed of two lobes (head and body). Chang'e-2 observations have significantly improved our understanding of the characteristics, formation, and evolution of asteroids in general.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000328503100001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Multidisciplinary Sciences; SCI(E); PubMed; 5; ARTICLE; 3411; 3
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/342505]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Huang, Jiangchuan,Ji, Jianghui,Ye, Peijian,et al. The Ginger-shaped Asteroid 4179 Toutatis: New Observations from a Successful Flyby of Chang'e-2[J]. scientific reports,2013.
APA	Huang, Jiangchuan.,Ji, Jianghui.,Ye, Peijian.,Wang, Xiaolei.,Yan, Jun.,...&Bai, Jinming.(2013).The Ginger-shaped Asteroid 4179 Toutatis: New Observations from a Successful Flyby of Chang'e-2.scientific reports.
MLA	Huang, Jiangchuan,et al."The Ginger-shaped Asteroid 4179 Toutatis: New Observations from a Successful Flyby of Chang'e-2".scientific reports (2013).