15 citations · 24 across the 5 of their papers we have counts for
5 papers
Experiments on Settling of Granular and Cohesive Material in Low Gravity
Matthias Keulen, Timo Giese, Kolja Joeris +1
The regolith of rocky bodies, such as planets or asteroids, generally settles under gravity conditions different from those of Earth. The behavior of granular material is not easil…
The growth of super-large pre-planetary pebbles to an impact erosion limit
J. Teiser, J. Penner, K. Joeris +4
Early dust evolution in protoplanetary disks is dominated by sticking collisions. However, this initial phase of particle growth faces constraints - notably from destructive encoun…
Ultra Low Velocity Ejecta Generated by Slow Impacts on Rubble Pile Asteroids
Kolja Joeris, Laurent Schönau, Matthias Keulen +1
We examine ejecta generated by ultra low velocity impacts under asteroid conditions. In an environment of precisely controlled milligravity and under vacuum, impacts with velocitie…
Controlled Partial Gravity Platform for Milligravity in Drop Tower Experiments
Kolja Joeris, Matthias Keulen, Jonathan E. Kollmer
We detail a platform for partial g environment and an experiment for simulated impacts on asteroid surfaces based on it. The partial g environment is created by a two stage approac…
Forbidden planetesimals
Laurent Schönau, Jens Teiser, Tunahan Demirci +5
Planetesimals are born fragile and are subject to destruction by wind erosion as they move through the gas of a protoplanetary disk. In microgravity experiments, we determined the…