Formation of Dusty Plasma Clouds at Meteoroid Impact on the Surface of the Moon


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Abstract

The nature of two dusty plasma clouds appearing because of the impact of a meteoroid on the surface of the Moon has been discussed. It has been shown that one of the clouds is formed by particles (or fragments) of regolith ejected into free space by a shock wave induced by the meteoroid impact on the surface of the Moon and the second cloud is formed by solidified melt droplets. The main characteristics of these clouds, including the cloud expansion rates, the characteristic sizes of particles in both clouds, and the concentrations and charges of particles, have been calculated. The calculated cloud expansion rates are in qualitative agreement with the observational data.

About the authors

S. I. Popel

Space Research Institute; National Research University Higher School of Economics

Author for correspondence.
Email: popel@iki.rssi.ru
Russian Federation, Moscow, 117997; Moscow, 101000

A. A. Tereshchenko

National Aviation University

Email: popel@iki.rssi.ru
Ukraine, Kyiv, 03058

Yu. I. Velikodsky

National Aviation University

Email: popel@iki.rssi.ru
Ukraine, Kyiv, 03058

S. Sposetti

Gnosca Observatory

Email: popel@iki.rssi.ru
Switzerland, Gnosca, CH-6525

R. Lena

Geologic Lunar Research (GLR) Group

Email: popel@iki.rssi.ru
Italy, Rome, 00137

M. Iten

Garden Observatory

Email: popel@iki.rssi.ru
Switzerland, Gordola, CH-6596

E. S. Zubko

Far Eastern Federal University

Email: popel@iki.rssi.ru
Russian Federation, Vladivostok, 690091

A. A. Berezhnoy

Sternberg Astronomical Institute

Email: popel@iki.rssi.ru
Russian Federation, Moscow, 119234

L. M. Zelenyi

Space Research Institute; Moscow Institute of Physics and Technology (State University)

Email: popel@iki.rssi.ru
Russian Federation, Moscow, 117997; Dolgoprudnyi, Moscow region, 141700

A. V. Zakharov

Space Research Institute

Email: popel@iki.rssi.ru
Russian Federation, Moscow, 117997

A. P. Golub’

Space Research Institute

Email: popel@iki.rssi.ru
Russian Federation, Moscow, 117997

B. Atamaniuk

Space Research Centre

Email: popel@iki.rssi.ru
Poland, Warsaw, 00-716

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