Bright Lunar Impacts and Sporadic Meteors

Details Bright Lunar Impacts and Sporadic Meteors Bright Lunar Impacts and Sporadic Meteors

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002nmgm.meet.1662s&link_type=abstract

"THE NINTH MARCEL GROSSMANN MEETING On Recent Developments in Theoretical and Experimental General Relativity, Gravitation and R

Physics

Scientific paper

The main meteor streams and the sporadic population of meteoroids are responsible for the actual modifications of the lunar surface. Since 1999 Leonids, several impacts have been unambiguously recorded [1-3]. Dealing with flashes of mv ~ 3÷7 magnitude, we studied their masses M and their luminous efficiency η at different impacting velocities V. Let η be the ratio between the luminous energy released during the impact and the incoming kinetic energy: for η γ [2 ÷ 40]% we obtained mass' impactor values ranging from Mstr ~ 2/η and Msp ~ 20/η (M in Kg), the difference arising from impacts' velocities. Such values are well beyond (~ 100 times larger) the previous estimates [4], compared with our predictions in the table.

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