64 citations · 234 across the 5 of their papers we have counts for
5 papers
The physics of protoplanetesimal dust agglomerates. X. High-velocity collisions between small and large dust agglomerates as growth barrier
Rainer Schräpler, Jürgen Blum, Sebastiaan Krijt +1
In a protoplanetary disk, dust aggregates in the m to mm size range possess mean collision velocities of 10 to 60 ms with respect to dm- to m-size bodies. We performed la…
The stratification of regolith on celestial objects
Rainer Schräpler, Jürgen Blum, Ingo von Borstel +1
All atmosphere-less planetary bodies are covered with a dust layer, the so-called regolith, which determines the optical, mechanical and thermal properties of their surface. These…
Granular convection and the Brazil nut effect in reduced gravity
Carsten Güttler, Ingo von Borstel, Rainer Schräpler +1
We present laboratory experiments of a vertically vibrated granular medium consisting of 1 mm diameter glass beads with embedded 8 mm diameter intruder glass beads. The experiments…
The physics of protoplanetesimal dust agglomerates. VII The low-velocity collision behavior of large dust agglomerates
Rainer Schräpler, Jürgen Blum, Alexander Seizinger +1
We performed micro-gravity collision experiments in our laboratory drop-tower using 5-cm-sized dust agglomerates with volume filling factors of 0.3 and 0.4, respectively. This work…
The Physics of Protoplanetesimal Dust Agglomerates. Vi. Erosion of Large Aggregates as a Source of Micrometer-Sized Particles
Rainer Schräpler, Jürgen Blum
Observed protoplanetary disks consist of a large amount of micrometer-sized particles. Dullemond and Dominik (2005) pointed out for the first time the difficulty in explaining the…