English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Cometary dust analogues for physics experiments

MPS-Authors
/persons/resource/persons15313

Kaufmann,  E.
Department of Molecular Developmental Biology, MPI for biophysical chemistry, Max Planck Society;

/persons/resource/persons30317

Blum,  J.
Prof. Konrad Mauersberger, Emeriti, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons104000

Kargl,  G.
MPI for Aeronomy, Max Planck Institute for Solar System Research, Max Planck Society;

/persons/resource/persons192299

Capelo,  H. L.
Laboratory for Fluid Dynamics, Pattern Formation and Biocomplexity, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

/persons/resource/persons104014

Knollenberg,  J.
MPI for Aeronomy, Max Planck Institute for Solar System Research, Max Planck Society;

/persons/resource/persons104212

Sierks,  H.
Planetary Science Department, Max Planck Institute for Solar System Research, Max Planck Society;

/persons/resource/persons160269

Güttler,  C.
Planetary Science Department, Max Planck Institute for Solar System Research, Max Planck Society;

/persons/resource/persons37513

Otto,  K. A.
Ralf Srama - Heidelberg Dust Group, Research Groups, MPI for Nuclear Physics, Max Planck Society;

Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Lethuillier, A., Feller, C., Kaufmann, E., Becerra, P., Hänni, N., Diethelm, R., et al. (2022). Cometary dust analogues for physics experiments. Monthly Notices of the Royal Astronomical Society, 515, 3420-3438. doi:10.1093/mnras/stac1734.


Cite as: https://hdl.handle.net/21.11116/0000-000C-B296-1
Abstract
The CoPhyLab (Cometary Physics Laboratory) project is designed to study the physics of comets through a series of earth-based experiments. For these experiments, a dust analogue was created with physical properties comparable to those of the non-volatile dust found on comets. This 'CoPhyLab dust' is planned to be mixed with water and CO2 ice and placed under cometary conditions in vacuum chambers to study the physical processes taking place on the nuclei of comets. In order to develop this dust analogue, we mixed two components representative for the non-volatile materials present in cometary nuclei. We chose silica dust as a representative for the mineral phase and charcoal for the organic phase, which also acts as a darkening agent. In this paper, we provide an overview of known cometary analogues before presenting measurements of eight physical properties of different mixtures of the two materials and a comparison of these measurements with known cometary values. The physical properties of interest are particle size, density, gas permeability, spectrophotometry, and mechanical, thermal, and electrical properties. We found that the analogue dust that matches the highest number of physical properties of cometary materials consists of a mixture of either 60 per cent/40 per cent or 70 per cent/30 per cent of silica dust/charcoal by mass. These best-fit dust analogue will be used in future CoPhyLab experiments.