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Experimental simulation of cometary surfaces using volatile-rich analogue materials

Haack, David and Otto, Katharina A. and Kührt, E. and Gundlach, Bastian and Kreuzig, Christopher and Blum, Jürgen (2019) Experimental simulation of cometary surfaces using volatile-rich analogue materials. EPSC-DPS Joint Meeting 2019, 15-20 September 2019, Geneva, Switzerland.

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Abstract

Cometary surfaces are shaped through the process of activity when the comet approaches the sun and the sublimation of volatiles removes dust and gases. Recently, the ESA Rosetta mission showed the geomorphologic diversity of comet 67P/Churyumov-Gerasimenko in great detail (Fig. 1), giving us the opportunity to investigate the sublimation processes on small Solar System bodies by means of geomorphologic analyses of the surface . In order to understand how these processes alter the surface appearance, we investigate the morphologic evolution of sublimating cometary surfaces in the laboratory of the IGEP department at TU Braunschweig. The focus lies on the evolution of different morphologies that were found on comet 67P/Churyumov-Gerasimenko, such as fractur es and debris deposits [1,2]. We consider the composition and initial geometry of the samples and variable insolation flux. Different sample compositions and geometries are prepared to model the interaction of volatile-dust mixtures with vacuum conditions. The results will not only provide information on the material properties and parameters (e.g. cohesion, tensile strength) of comets, but will also enable us to Analyse the morphologic evolution of cometary surfaces.

Item URL in elib:https://elib.dlr.de/132150/
Document Type:Conference or Workshop Item (Poster)
Title:Experimental simulation of cometary surfaces using volatile-rich analogue materials
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Haack, Daviddavid.haack (at) dlr.deUNSPECIFIED
Otto, Katharina A.Katharina.Otto (at) dlr.dehttps://orcid.org/0000-0002-0675-1177
Kührt, E.ekkehard.kuehrt (at) dlr.deUNSPECIFIED
Gundlach, Bastianinstitut für geophysik und extraterrestrische physik (igep), technische universität braunschweig, mendelssohnstr. 3, 38106 braunschweig, germanyUNSPECIFIED
Kreuzig, ChristopherInstitut fur Geophysik und Extraterrestrische Physik, Technische Universität Braunschweig,Braunschweig, GermanyUNSPECIFIED
Blum, Jürgeninstitut für geophysik und extraterrestrische physik (igep), technische universität braunschweig, mendelssohnstr. 3, 38106 braunschweig, germanyUNSPECIFIED
Date:2019
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:13
Page Range:p. 649
Series Name:EPSC Abstracts
Status:Published
Keywords:sublimation, cometary surfaces
Event Title:EPSC-DPS Joint Meeting 2019
Event Location:Geneva, Switzerland
Event Type:international Conference
Event Dates:15-20 September 2019
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):Vorhaben asteroids and comets
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Deposited By: Haack, David
Deposited On:09 Dec 2019 09:35
Last Modified:09 Dec 2019 09:35

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