elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Distribution of icy particles across Enceladus' surface as derived from Cassini-VIMS measurements

Jaumann, R. and Stephan, K. and Hansen, G. B. and Clark, R. N. and Buratti, B. J. and Brown, R. H. and Baines, K. H. and Newman, S. F. and Bellucci, G. and Filacchione, G. and Coradini, A. and Cruikshank, D. P. and Griffith, C. A. and Hibbitts, C. A. and McCord, T. B. and Nelson, R. M. and Nicholson, P. D. and Sotin, C. and Wagner, R. (2008) Distribution of icy particles across Enceladus' surface as derived from Cassini-VIMS measurements. Icarus: International Journal of Solar System Studies, 193 (2), pp. 407-419. Elsevier. DOI: 10.1016/j.icarus.2007.09.013

Full text not available from this repository.

Abstract

The surface of Enceladus consists almost completely of water ice. As the band depths of water ice absorptions are sensitive to the size of particles, absorptions can be used to map variations of icy particles across the surface. The Visual and Infrared Mapping Spectrometer (VIMS) observed Enceladus with a high spatial resolution during three Cassini flybys in 2005 (orbits EN 003, EN 004 and EN 011). Based on these data we measured the band depths of water ice absorptions at 1.04, 1.25, 1.5, and 2 μm. These band depths were compared to water ice models that represent theoretically calculated reflectance spectra for a range of particle diameters between 2 μm and 1 mm. The agreement between the experimental (VIMS) and model values supports the assumption that pure water ice characterizes the surface of Enceladus and therefore that variations in band depth correspond to variations in water ice particle diameters. Our measurements show that the particle diameter of water ice increases toward younger tectonically altered surface units with the largest particles exposed in relatively “fresh” surface material. The smallest particles were generally found in old densely cratered terrains. The largest particles (not, vert, similar0.2 mm) are concentrated in the so called “tiger stripes” at the south pole. In general, the particle diameters are strongly correlated with geologic features and surface ages, indicating a stratigraphic evolution of the surface that is caused by cryovolcanic resurfacing and impact gardening.

Item URL in elib:https://elib.dlr.de/52917/
Document Type:Article
Title:Distribution of icy particles across Enceladus' surface as derived from Cassini-VIMS measurements
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Jaumann, R.UNSPECIFIEDUNSPECIFIED
Stephan, K.UNSPECIFIEDUNSPECIFIED
Hansen, G. B.Bear Fight Center, Winthrop, WA, USAUNSPECIFIED
Clark, R. N.US Geological Survey, Denver Federal Center, Denver, CO, USAUNSPECIFIED
Buratti, B. J.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAUNSPECIFIED
Brown, R. H.Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USAUNSPECIFIED
Baines, K. H.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAUNSPECIFIED
Newman, S. F.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAUNSPECIFIED
Bellucci, G.Istituto Fisica Spazio Interplanetario, CNR, Roma, ItalyUNSPECIFIED
Filacchione, G.Istituto Fisica Spazio Interplanetario, CNR, Roma, ItalyUNSPECIFIED
Coradini, A.Istituto Fisica Spazio Interplanetario, CNR, Roma, ItalyUNSPECIFIED
Cruikshank, D. P.NASA Ames Research Center, Moffett Field, CA, USAUNSPECIFIED
Griffith, C. A.Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USAUNSPECIFIED
Hibbitts, C. A.Bear Fight Center, Winthrop, WA, USAUNSPECIFIED
McCord, T. B.Bear Fight Center, Winthrop, WA, USAUNSPECIFIED
Nelson, R. M.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAUNSPECIFIED
Nicholson, P. D.Department of Astronomy, Cornell University, Ithaca, NY, USAUNSPECIFIED
Sotin, C.University of Nantes, Nantes, FranceUNSPECIFIED
Wagner, R.UNSPECIFIEDUNSPECIFIED
Date:2008
Journal or Publication Title:Icarus: International Journal of Solar System Studies
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Volume:193
DOI :10.1016/j.icarus.2007.09.013
Page Range:pp. 407-419
Publisher:Elsevier
Status:Published
Keywords:Enceladus, Saturn, satellites
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben CASSINI (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research
Deposited By: Pieth, Susanne
Deposited On:16 Jan 2008
Last Modified:27 Apr 2009 14:39

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.