Comets, sliding of surface dust II

• DOI: 10.1016/j.icarus.2022.114946
• Publication Date: 2022-02-24T01:58:32Z
• Authors: Konrad J. Kossacki; Marcin Wesołowski; Grzegorz Skóra; Krzysztof Staszki...
• Keywords: Sublimation; Angle of repose

In this paper we presented the results of laboratory experiments dealing with sliding desiccated sand on inclined surfaces cometary analogs. The were performed in a vacuum, using porous mixtures water ice and quartz sand. inclination angle samples was about 10 degrees lower than repose angle. possible when mobility coefficient defined as ratio forces unity i.e. layer whole not fluidized. observed effect due to rolling, or grains present surface. It is important, that process can be caused by sublimation underlying despite its relatively low volatility.