000K  utf8
1100  2024$c2024-08-06
1500  eng
2050  urn:nbn:de:hbz:465-20250129-112510-4
2051  10.1093/mnras/stae1877
3000  Schönau, Laurent
3010  Teiser, Jens
3010  Wurm, Gerhard
4000  Zero-g wind tunnel experiments on planetesimal erosion  [Schönau, Laurent]
4209  Wind erosion thresholds for planetesimals in protoplanetary discs depend on particle size, cohesion, ambient gas pressure, and gravity. In the experiments reported here, we used a low pressure shear wind tunnel for the first time under real zero gravity. That is, we carried out the experiments in the drop tower in Bremen at 10-5g ⁠. In concert with earlier work, we confirm the applicability of a single semi-empirical equation to describe the threshold shear stress for wind erosion. It can be applied to calculations of unstable orbits of planetesimals and the dissolution of planetesimals passing through evolving planetary atmospheres.
4950  https://doi.org/10.1093/mnras/stae1877$xR$3Volltext$534
4950  https://nbn-resolving.org/urn:nbn:de:hbz:465-20250129-112510-4$xR$3Volltext$534
4961  https://duepublico2.uni-due.de/receive/duepublico_mods_00082347
5051  530
5550  planet–disc interactions
5550  planets and satellites: dynamical evolution and stability
5550  planets and satellites: formation
5550  planets and satellites: physical evolution
5550  protoplanetary discs