Revisiting sticking property of submillimetre-sized aggregates
arXiv:2006.10192 · doi:10.1093/mnras/staa1764
Abstract
Understanding the physical properties of dust aggregates is of great importance in planetary science. In this study, we revisited the sticking property of submillimetre-sized aggregates. We revealed that the "effective surface energy" model used in previous studies underestimates the critical pulling force needed to separate two sticking aggregates. We also derived a new and simple model of the critical pulling force based on the canonical theory of two contacting spheres. Our findings indicate that we do not need to consider the "effective surface energy" of dust aggregates when discussing the physical properties of loose agglomerates of submillimetre-sized aggregates.
4 pages, 2 figures. Accepted for publication in MNRAS
References in corpus (6)
- How to form planetesimals from mm-sized chondrules and chondrule aggregates
- Evidence for the formation of comet 67P/Churyumov-Gerasimenko through gravitational collapse of a bound clump of pebbles
- Comets formed in solar-nebula instabilities! -- An experimental and modeling attempt to relate the activity of comets to their formation process (corrigendum included)
- Formation of pebble-pile planetesimals
- Sticking Properties of Silicates in Planetesimal Formation Revisited
- Submillimetre-sized dust aggregate collision and growth properties