Comets, sliding of surface dust
| Autor: | Konrad J. Kossacki, Grzegorz Skóra, Leszek Czechowski |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
010504 meteorology & atmospheric sciences Astronomy and Astrophysics 01 natural sciences Silicate chemistry.chemical_compound chemistry Space and Planetary Science 0103 physical sciences Sublimation (phase transition) Surface dust Composite material Porosity 010303 astronomy & astrophysics Angle of inclination 0105 earth and related environmental sciences |
| Zdroj: | Icarus. 348:113781 |
| ISSN: | 0019-1035 |
| DOI: | 10.1016/j.icarus.2020.113781 |
| Popis: | The work aims to determine the conditions necessary for the sliding of the sand layer on slightly inclined surfaces of granular ice of the porosity about 0.5. We studied a layer of fine or very fine silicate sand. It has been found that a layer of very fine sand can begin to slide on the surface of the porous granular ice at an angle of inclination as small as ten degrees. Our measurements also show that sublimation of vapor from uncovered porous ice may be slower than from compact ice. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect