Showing papers by "Sascha Kempf published in 2000"
University of Jena1, University of Colorado Boulder2, Max Planck Society3, University of California, Santa Cruz4, Hokkaido University5, Technische Universität München6, University of Florida7, United States Naval Research Laboratory8, German Aerospace Center9, Planetary Science Institute10, European Space Research and Technology Centre11, Museum für Naturkunde12
TL;DR: A microgravity experiment flown onboard the space shuttle is performed in which the onset of free preplanetary dust accumulation is simulated and it is found that a thermally aggregating swarm of dust particles evolves very rapidly and forms unexpected open-structured agglomerates.
Abstract: The outcome of the first stage of planetary formation, which is characterized by ballistic agglomeration of preplanetary dust grains due to Brownian motion in the free molecular flow regime of the solar nebula, is still somewhat speculative. We performed a microgravity experiment flown onboard the space shuttle in which we simulated, for the first time, the onset of free preplanetary dust accumulation and revealed the structures and growth rates of the first dust agglomerates in the young solar system. We find that a thermally aggregating swarm of dust particles evolves very rapidly and forms unexpected open-structured agglomerates.
245 citations
01 Oct 2000
1 citations