Physics
Scientific paper
Sep 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008epsc.conf...10n&link_type=abstract
European Planetary Science Congress 2008, Proceedings of the conference held 21-25 September, 2008 in Münster, Germany. Online a
Physics
Scientific paper
Abstract Impact of a large meteoroid with an atmosphereless cosmic body (Moon, Mercury, asteroid and comet) produces a transient atmosphere. Several physical aspects in the early and late phases of the impact generated vapour plume evolution are considered numerically and analytically. Intensity of light flashes and velocities versus mass distribution function are determined. For a 10 kg mass of impacting meteoroid, the plume intensively interacts with the solar wind in the region with the size of several hundred kilometres. The expulsion of the interplanetary magnetic field, formation of the collisionless shock wave structure associated with intense electrostatic turbulence, dust particle formation, electron heating, and even production of X-rays lasting for several minutes are characteristic features of such impacts. These effects give the basis for new techniques of remote detection of meteoroid impacts.
Artemieva Natalia A.
Kosarev I. B.
Nemtchinov Ivan V.
Popel Sergey I.
Shuvalov Valery
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