Physics
Scientific paper
Jul 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995adspr..15r..29s&link_type=abstract
Advances in Space Research (ISSN 0273-1177), vol. 15, no. 10, p. 29-34
Physics
Comet Nuclei, Comets, Dust, Ice, Olivine, Space Environment Simulation, Sublimation, Water, European Space Programs, In Situ Measurement, Pressure Effects, Temperature Effects
Scientific paper
The study of comets revived by the reappearence of P/Halley in 1986. In order to support these observations by laboratory studies and to prepare for the ROSETTA mission a vacuum chamber, called Small Simulation Chamber (SSC), has been constructed at the DLR Institute for Space Simulation. The SSC has a LN2 cooled volume of about 0.2 cu m and reaches a minimum pressure of about 10-3 Pa. On 7 July 1994 a test experiment with an ice-dust mixture of 90% H2O and 10% Olivine was conducted during which the characteristic gas emission variation indicating the build-up of thin dust mantles was observed for the first time in the SSC. We intended to use the SSC for the study of the energy balance of ice-dust samples and for the investigation of sublimation processes. Collaboration with interested scientists is strongly encouraged.
Kochan Hermann
Moehlmann Diedrich
Seidensticker Klaus J.
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