Universität zu Köln

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:	Creators Email ORCID ORCID Put Code Grundy, W. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bird, M. K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Britt, D. T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Cook, J. C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Cruikshank, D. P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Howett, C. J. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Krijt, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Linscott, I. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Olkin, C. B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Parker, A. H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Protopapa, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ruaud, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Umurhan, O. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Young, L. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ore, C. M. Dalle UNSPECIFIED UNSPECIFIED UNSPECIFIED Kavelaars, J. J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Keane, J. T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pendleton, Y. J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Porter, S. B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Scipioni, F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Spencer, J. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Stern, S. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Verbiscer, A. J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Weaver, H. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Binzel, R. P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Buie, M. W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Buratti, B. J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Cheng, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Earle, A. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Elliott, H. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gabasova, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gladstone, G. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hill, M. E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Horanyi, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Jennings, D. E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lunsford, A. W. UNSPECIFIED UNSPECIFIED UNSPECIFIED McComas, D. J. UNSPECIFIED UNSPECIFIED UNSPECIFIED McKinnon, W. B. UNSPECIFIED UNSPECIFIED UNSPECIFIED McNutt, R. L., Jr. UNSPECIFIED UNSPECIFIED UNSPECIFIED Moore, J. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Parker, J. W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Quirico, E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Reuter, D. C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schenk, P. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Schmitt, B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Showalter, M. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Singer, K. N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Weigle, G. E., II UNSPECIFIED UNSPECIFIED UNSPECIFIED Zangari, A. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED
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:	Keywords Language OUTER SOLAR-SYSTEM; PLANETESIMAL FORMATION; OPTICAL-CONSTANTS; ICE; SURFACE; BODIES; MODEL; WATER; INTERSTELLAR; IRRADIATION Multiple languages Multidisciplinary Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/34378