气候变化领域集成服务门户(CCPortal): Color, composition, and thermal environment of Kuiper Belt object (486958) Arrokoth

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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
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
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133680
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]. Science,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.,367(6481).
MLA	Grundy W.M.,et al."Color, composition, and thermal environment of Kuiper Belt object (486958) Arrokoth".367.6481(2020).