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., Ore, C. M. Dalle, 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 and Zangari, A. M. (2020). Color, composition, and thermal environment of Kuiper Belt object (486958) Arrokoth. Science, 367 (6481). S. 999 - 1033. WASHINGTON: AMER ASSOC ADVANCEMENT SCIENCE. ISSN 1095-9203

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Abstract

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.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Grundy, W. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bird, M. K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Britt, D. T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cook, J. C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cruikshank, D. P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Howett, C. J. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Krijt, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Linscott, I. R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Olkin, C. B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Parker, A. H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Protopapa, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ruaud, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Umurhan, O. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Young, L. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ore, C. M. DalleUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kavelaars, J. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Keane, J. T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pendleton, Y. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Porter, S. B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Scipioni, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Spencer, J. R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stern, S. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Verbiscer, A. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Weaver, H. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Binzel, R. P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Buie, M. W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Buratti, B. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cheng, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Earle, A. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Elliott, H. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gabasova, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gladstone, G. R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hill, M. E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Horanyi, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jennings, D. E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lunsford, A. W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
McComas, D. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
McKinnon, W. B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
McNutt, R. L., Jr.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Moore, J. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Parker, J. W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Quirico, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Reuter, D. C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schenk, P. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schmitt, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Showalter, M. R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Singer, K. N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Weigle, G. E., IIUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zangari, A. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-343782
DOI: 10.1126/science.aay3705
Journal or Publication Title: Science
Volume: 367
Number: 6481
Page Range: S. 999 - 1033
Date: 2020
Publisher: AMER ASSOC ADVANCEMENT SCIENCE
Place of Publication: WASHINGTON
ISSN: 1095-9203
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
OUTER SOLAR-SYSTEM; PLANETESIMAL FORMATION; OPTICAL-CONSTANTS; ICE; SURFACE; BODIES; MODEL; WATER; INTERSTELLAR; IRRADIATIONMultiple languages
Multidisciplinary SciencesMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/34378

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