Vertical dynamics and horizontal transfer of submicron-sized lunar-regolith microparticles levitating in the electrostatic field of the near-surface photoelectron layer

Modification of the surface properties of polyimide films using polyhedral oligomeric silsesquioxane deposition and oxygen plasma exposure

“…Regolith consists of a broad array of different sized particles, with the micrometer sized lunar dust comprising a significant fraction that is potentially the most problematic [46]. Lunar dust is produced from space weathering (meteorite impacts, radiation and thermal cycling) and, to a lesser degree, abrasion mechanisms due to the lunar surface dynamics of dust particles [47][48][49][50]. Apollo astronauts observed the dynamic motion of dust particles as streaks in the sky near the terminator [51], the line which separates the day and night sides of the moon, with sub-micrometer sized lunar dust particles thought to travel as high as 100 km from the lunar surface [48].…”

Analytical study of the motion of particles with variable electric charge

“…here Q 0 is the charge for L = L 0 . We receive expansion coefficients ξ k by substitution of expression (8) in the equation 7. It has been shown in [17] the increase of polynomial degree essentially improves accuracy of approximation even for a greater interval of values L .…”

“…To receive expressions for Y 2φ and Y 1 we use dipolar coordinates L, Φ, M and the formula (8). Then…”

“…At last, the problem of dynamics of microparticles with a variable Manuscript received April 15, 2018 ; accepted August 4, 2018 A. B. Yakovlev is with St. Petersburg State University, Russian Federation charge in space plasma arises in connection with research of a problem of electrostatic levitation of dust particles near a surface of nonatmospheric heavenly bodies [8,12,[14][15][16]. A more detailed list of papers on this problem it is possible to see, for example, in [12,16].…”

Control of Lunar and Martian Dust—Experimental Insights from Artificial and Natural Cyanobacterial and Algal Crusts in the Desert of Inner Mongolia, China

“…The grain sizes and behavior of clays, silt, and sands found in terrestrial desert sands have previously been recognized as potential analogues for understanding grain size and behavior in martian deserts (Greeley and Williams, 1994). On the Moon and on Mars there is a large inventory of very fine dust created by impact gardening of the surface (Dollfus, 1998;Lee, 1995;Kolesnikov and Yakovlev, 2003). Provided that the material is sufficiently unconsolidated to allow microorganisms to move throughout the grains, however, crust formation should be possible.…”