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DOI	10.1126/science.aay3705
	Color, composition, and thermal environment of Kuiper Belt object (486958) Arrokoth
	Grundy W.M.; Bird M.K.; Britt D.T.; Cook J.C.; Cruikshank D.P.; Howett C.J.A.; Krijt S.; Linscott I.R.; Olkin C.B.; Parker A.H.; Protopapa S.; Ruaud M.; Umurhan O.M.; Young L.A.; Dalle Ore C.M.; Kavelaars J.J.; Keane J.T.; Pendleton Y.J.; Porter S.B.; Scipioni F.; Spencer J.R.; Stern S.A.; Verbiscer A.J.; Weaver H.A.; Binzel R.P.; Buie M.W.; Buratti B.J.; Cheng A.; Earle A.M.; Elliott H.A.; Gabasova L.; Gladstone G.R.; Hill M.E.; Horanyi M.; Jennings D.E.; Lunsford A.W.; McComas D.J.; McKinnon W.B.; McNutt R.L.; Jr.; Moore J.M.; Parker J.W.; Quirico E.; Reuter D.C.; Schenk P.M.; Schmitt B.; Showalter M.R.; Singer K.N.; Weigle G.E.; II; Zangari A.M.
发表日期	2020
ISSN	0036-8075
卷号	367 期号:6481
英文摘要	The outer Solar System object (486958) Arrokoth (provisional designation 2014 MU69) has been largely undisturbed since its formation. We studied its surface composition using data collected by the New Horizons spacecraft. Methanol ice is present along with organic material, which may have formed through irradiation of simple molecules. Water ice was not detected. This composition indicates hydrogenation of carbon monoxide-rich ice and/or energetic processing of methane condensed on water ice grains in the cold, outer edge of the early Solar System. There are only small regional variations in color and spectra across the surface, which suggests that Arrokoth formed from a homogeneous or well-mixed reservoir of solids. Microwave thermal emission from the winter night side is consistent with a mean brightness temperature of 29 ± 5 kelvin. 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	brightness temperature; chemical composition; color; environmental conditions; solar system; spacecraft; 486958 Arrokoth; Article; astronomy; color; environmental factor; environmental temperature; heat transfer; image quality; infrared spectroscopy; Kuiper Belt; microwave radiometry; principal component analysis; priority journal; radiometry; space flight; spectral imaging; thermal environment
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/243884
作者单位	Lowell Observatory, Flagstaff, AZ 86001, United States; Department of Astronomy and Planetary Science, Northern Arizona University, Flagstaff, AZ 86011, United States; Argelander-Institut für Astronomie, University of Bonn, Bonn, D-53121, Germany; Rheinisches Institut für Umweltforschung, Universität zu Köln, Cologne, 50931, Germany; University of Central Florida, Orlando, FL 32816, United States; Pinhead Institute, Telluride, CO 81435, United States; NASA Ames Research Center, Moffett Field, CA 94035, United States; Southwest Research Institute, Boulder, CO 80302, United States; Steward Observatory, University of Arizona, Tucson, AZ 85719, United States; Stanford University, Stanford, CA 94305, United States; Carl Sagan Center, SETI Institute, Mountain View, CA 94043, United States; National Research Council, Victoria, BC V9E 2E7, Canada; Department of Physics and Astronomy, University of Victoria, Victoria, BC V8W 2Y2, Canada; California Institute of Technology, Pasadena, CA 91125, United St...
推荐引用方式 GB/T 7714	Grundy W.M.,Bird M.K.,Britt D.T.,et al. Color, composition, and thermal environment of Kuiper Belt object (486958) Arrokoth[J],2020,367(6481).
APA	Grundy W.M..,Bird M.K..,Britt D.T..,Cook J.C..,Cruikshank D.P..,...&Zangari A.M..(2020).Color, composition, and thermal environment of Kuiper Belt object (486958) Arrokoth.Science,367(6481).
MLA	Grundy W.M.,et al."Color, composition, and thermal environment of Kuiper Belt object (486958) Arrokoth".Science 367.6481(2020).