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Spectrophotometry of the Ceres surface

Schröder, S.E. and Mottola, S. and Carsenty, U. and Jaumann, R. and Keller, H. U. and Krohn, Katrin and Matz, K.-D. and Otto, K. and Preusker, Frank and Roatsch, T. and Scholten, F. and Stephan, K. and Wagner, R. and Li, J.-Y. and McFadden, L.A. and Raymond, C.A. and Russell, C.T. (2015) Spectrophotometry of the Ceres surface. DPS, 08.-13. Dez. 2015, Washington DC, USA.

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Abstract

The Dawn spacecraft is in orbit around dwarf planet Ceres. The onboard Framing Camera (FC) is mapping the surface through a clear filter and 7 narrow-band filters at various observational geometries and image resolutions. Generally, Ceres' appearance in these images is affected by shadows and shading, effects which obscure the intrinsic reflective properties of the surface. By means of photometric modeling we remove these effects and reconstruct the surface reflectance for each of the FC filters, creating albedo and color maps in the process. Considering these maps in unison provides clues to the physical nature and composition of the surface and the dominant geologic processes that shape the surface. We assess the nature of color variations in the visible wavelength range for Ceres globally. We identify which terrains express the dominant colors and investigate why some areas are exceptions to the rule. By correlating the color over the surface with geologic units we find an relatively strong enhancement of the reflectance towards the blue end of the visible spectrum for recent impacts and their ejecta.

Item URL in elib:https://elib.dlr.de/101447/
Document Type:Conference or Workshop Item (Speech)
Title:Spectrophotometry of the Ceres surface
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schröder, S.E.stefanus.schroeder (at) dlr.deUNSPECIFIED
Mottola, S.stefano.mottola (at) dlr.deUNSPECIFIED
Carsenty, U.uri.carsenty (at) dlr.deUNSPECIFIED
Jaumann, R.ralf.jaumann (at) dlr.deUNSPECIFIED
Keller, H. U.IGEP TU BraunschweigUNSPECIFIED
Krohn, Katrinkatrin.krohn (at) dlr.dehttps://orcid.org/0000-0001-8518-4985
Matz, K.-D.klaus-dieter.matz (at) dlr.deUNSPECIFIED
Otto, K.katharina.otto (at) dlr.deUNSPECIFIED
Preusker, Frankfrank.preusker (at) dlr.deUNSPECIFIED
Roatsch, T.thomas.roatsch (at) dlr.deUNSPECIFIED
Scholten, F.frank.scholten (at) dlr.deUNSPECIFIED
Stephan, K.katrin.stephan (at) dlr.deUNSPECIFIED
Wagner, R.roland.wagner (at) dlr.deUNSPECIFIED
Li, J.-Y.Planetary Science Institute, 1700 East Fort Lowell, Tucson, AZ 85719-2395, USAUNSPECIFIED
McFadden, L.A.NASA Goddard Space Flight Center, Greenbelt, MD 20770UNSPECIFIED
Raymond, C.A.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109-8099, USAUNSPECIFIED
Russell, C.T.Institute of Geophysics, University of California, Los Angeles, Los Angeles, CA 90095UNSPECIFIED
Date:2015
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:47
Page Range:#103.05
Series Name:AAS/Division for Planetary Sciences Meeting Abstracts
Status:Published
Keywords:Asteroid Ceres
Event Title:DPS
Event Location:Washington DC, USA
Event Type:international Conference
Event Dates:08.-13. Dez. 2015
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Projekt DAWN
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geology
Institute of Planetary Research > Asteroids and Comets
Institute of Planetary Research > Planetary Geodesy
Deposited By: Schröder, Dr. Stefan
Deposited On:05 Jan 2016 13:41
Last Modified:31 Jul 2019 19:58

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