189 citations · 2.3k across the 79 of their papers we have counts for
79 papers
Gas Phase Ion Species Released During Grain Collisions: Implications For Protoplanetary Disks
Patrick Hock, Gerhard Wurm
Grain charging and gas ionization are important processes in protoplanetary disks. Both occur in mutual collisions between grains, as charge is exchanged between grain surfaces but…
The Dissolution of Planetesimals in Electrostatic Fields
F. Chioma Onyeagusi, Jens Teiser, Tim Becker +1
Planetesimals or smaller bodies in protoplanetary disks are often considered to form as pebble piles in current planet formation models. They are supposed to be large but loose, we…
Gas Phase Ions in Protoplanetary Disks from Collisions of Solids
Jakob Penner, Gerhard Wurm, Jens Teiser
Ionization is important for magnetohydrodynamics and chemistry in protoplanetary disks but known ionization sources are often weak along the midplane. We present, for the first tim…
Ejected Particles after Impact Splash on Mars: Aggregates and Aerodynamics
Tim Becker, Jens Teiser, Teresa Jardiel +6
Our earlier laboratory measurements showed that low-velocity sand impacts release fine <5 μm dust from a Martian simulant soil. This dust will become airborne in the Martian atmosp…
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…
Understanding planet formation using microgravity experiments
Gerhard Wurm, Jens Teiser
In 2018, images were released of a planet being formed around the star PDS 70, offering a tantalizing glimpse into how planets come into being. However, many questions remain about…