气候变化领域集成服务门户(CCPortal): The geology and geophysics of Kuiper Belt object (486958) Arrokoth

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DOI	10.1126/science.aay3999
	The geology and geophysics of Kuiper Belt object (486958) Arrokoth
	Spencer J.R.; Stern S.A.; Moore J.M.; Weaver H.A.; Singer K.N.; Olkin C.B.; Verbiscer A.J.; McKinnon W.B.; Wm Parker J.; Beyer R.A.; Keane J.T.; Lauer T.R.; Porter S.B.; White O.L.; Buratti B.J.; El-Maarry M.R.; Lisse C.M.; Parker A.H.; Throop H.B.; Robbins S.J.; Umurhan O.M.; Binzel R.P.; Britt D.T.; Buie M.W.; Cheng A.F.; Cruikshank D.P.; Elliott H.A.; Gladstone G.R.; Grundy W.M.; Hill M.E.; Horanyi M.; Jennings D.E.; Kavelaars J.J.; Linscott I.R.; McComas D.J.; McNutt R.L.; Jr.; Protopapa S.; Reuter D.C.; Schenk P.M.; Showalter M.R.; Young L.A.; Zangari A.M.; Abedin A.Y.; Beddingfield C.B.; Benecchi S.D.; Bernardoni E.; Bierson C.J.; Borncamp D.; Bray V.J.; Chaikin A.L.; Dhingra R.D.; Fuentes C.; Fuse T.; Gay P.L.; Gwyn S.D.J.; Hamilton D.P.; Hofgartner J.D.; Holman M.J.; Howard A.D.; Howett C.J.A.; Karoji H.; Kaufmann D.E.; Kinczyk M.; May B.H.; Mountain M.; Pätzold M.; Petit J.M.; Piquette M.R.; Reid I.N.; Reitsema H.J.; Runyon K.D.; Sheppard S.S.; Stansberry J.A.; Stryk T.; Tanga P.; Tholen D.J.; Trilling D.E.; Wasserman L.H.
发表日期	2020
ISSN	0036-8075
卷号	367 期号:6481
英文摘要	The Cold Classical Kuiper Belt, a class of small bodies in undisturbed orbits beyond Neptune, is composed of primitive objects preserving information about Solar System formation. In January 2019, the New Horizons spacecraft flew past one of these objects, the 36-kilometer-long contact binary (486958) Arrokoth (provisional designation 2014 MU69). Images from the flyby show that Arrokoth has no detectable rings, and no satellites (larger than 180 meters in diameter) within a radius of 8000 kilometers. Arrokoth has a lightly cratered, smooth surface with complex geological features, unlike those on previously visited Solar System bodies. The density of impact craters indicates the surface dates from the formation of the Solar System. The two lobes of the contact binary have closely aligned poles and equators, constraining their accretion mechanism. Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works
英文关键词	accretion; geology; geophysics; Neptune; solar system; spacecraft; article; astronomy; cold stress; geology; space flight
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245576
作者单位	Southwest Research Institute, Boulder, CO 80302, United States; NASA Ames Research Center, Moffett Field, CA 94035-1000, United States; Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, United States; Department of Astronomy, University of Virginia, Charlottesville, VA 22904, United States; Department of Earth and Planetary Sciences, McDonnell Center for the Space Sciences, Washington University, St. Louis, MO 63130, United States; SETI Institute, Mountain View, CA 94043, United States; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, United States; National Science Foundation's, National Optical Infrared, Astronomy Research Laboratory, Tucson, AZ 26732, United States; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, United States; Department of Earth and Planetary Sciences, Birkbeck, University of London, London, WC1E 7HX, United Kingdom; University College London, Gower St, Bloomsbury, L...
推荐引用方式 GB/T 7714	Spencer J.R.,Stern S.A.,Moore J.M.,et al. The geology and geophysics of Kuiper Belt object (486958) Arrokoth[J],2020,367(6481).
APA	Spencer J.R..,Stern S.A..,Moore J.M..,Weaver H.A..,Singer K.N..,...&Wasserman L.H..(2020).The geology and geophysics of Kuiper Belt object (486958) Arrokoth.Science,367(6481).
MLA	Spencer J.R.,et al."The geology and geophysics of Kuiper Belt object (486958) Arrokoth".Science 367.6481(2020).