Universität zu Köln

Telfer, Matt W., Parteli, Eric J. R., Radebaugh, Jani ORCID: 0000-0002-7022-892X, Beyer, Ross A., Bertrand, Tanguy, Forget, Francois, Nimmo, Francis, Grundy, Will M., Moore, Jeffrey M., Stern, S. Alan, Spencer, John, Lauer, Tod R., Earle, Alissa M., Binzel, Richard P., Weaver, Hal A., Olkin, Cathy B., Young, Leslie A., Ennico, Kimberly and Runyon, Kirby (2018). Dunes on Pluto. Science, 360 (6392). S. 992 - 998. WASHINGTON: AMER ASSOC ADVANCEMENT SCIENCE. ISSN 1095-9203

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Abstract

The surface of Pluto is more geologically diverse and dynamic than had been expected, but the role of its tenuous atmosphere in shaping the landscape remains unclear. We describe observations from the New Horizons spacecraft of regularly spaced, linear ridges whose morphology, distribution, and orientation are consistent with being transverse dunes. These are located close to mountainous regions and are orthogonal to nearby wind streaks. We demonstrate that the wavelength of the dunes (-0.4 to 1 kilometer) is best explained by the deposition of sand-sized (-200 to -300 micrometer) particles of methane ice in moderate winds (<10 meters per second). The undisturbed morphology of the dunes, and relationships with the underlying convective glacial ice, imply that the dunes have formed in the very recent geological past.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Telfer, Matt W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Parteli, Eric J. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Radebaugh, Jani UNSPECIFIED orcid.org/0000-0002-7022-892X UNSPECIFIED Beyer, Ross A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bertrand, Tanguy UNSPECIFIED UNSPECIFIED UNSPECIFIED Forget, Francois UNSPECIFIED UNSPECIFIED UNSPECIFIED Nimmo, Francis UNSPECIFIED UNSPECIFIED UNSPECIFIED Grundy, Will M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Moore, Jeffrey M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Stern, S. Alan UNSPECIFIED UNSPECIFIED UNSPECIFIED Spencer, John UNSPECIFIED UNSPECIFIED UNSPECIFIED Lauer, Tod R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Earle, Alissa M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Binzel, Richard P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Weaver, Hal A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Olkin, Cathy B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Young, Leslie A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ennico, Kimberly UNSPECIFIED UNSPECIFIED UNSPECIFIED Runyon, Kirby UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-183716
DOI:	10.1126/science.aao2975
Journal or Publication Title:	Science
Volume:	360
Number:	6392
Page Range:	S. 992 - 998
Date:	2018
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 NITROGEN-ICE; HORIZONS; SURFACE; TRITON; SNOW; STATE; SUBLIMATION; CONVECTION; ENCOUNTER; BEDFORMS Multiple languages Multidisciplinary Sciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/18371