203 citations · 684 across the 18 of their papers we have counts for
5 papers · 1 filter
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…
Thermal Creep on Mars: Visualizing a Soil Layer under Tension
Tetyana Bila, Jonathan Kollmer, Jens Teiser +1
At low ambient pressure, temperature gradients in porous soil lead to a gas flow, called thermal creep. With this regard, Mars is a unique as the conditions for thermal creep to oc…
Stick-slip dynamics in penetration experiments on simulated regolith
Jack Featherstone, Robert Bullard, Tristan Emm +7
The surfaces of many planetary bodies, including asteroids and small moons, are covered with dust to pebble-sized regolith held weakly to the surface by gravity and contact forces.…
Laboratory Impact Splash Experiments to Simulate Asteroid Surfaces
Tabea Bogdan, Jonathan E. Kollmer, Jens Teiser +2
Granular material that is bound by the low gravity of a small asteroid is mobilized by slow velocity impacts. These splashes generated by impacts might play an important role in sc…