Excitation and ionization of sodium in meteoroid impacts on the Moon

Details Excitation and ionization of sodium in meteoroid impacts on the Moon Excitation and ionization of sodium in meteoroid impacts on the Moon

Nov 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...394..723c&link_type=abstract

Astronomy and Astrophysics, v.394, p.723-727 (2002)

Astronomy and Astrophysics

Astrophysics

4

Meteors, Meteoroids, Moon, Telescope

Scientific paper

After a brief historical review about the Moon sodium exosphere and lunar impacts, the attention is focused on the lack of enhancements of the sodium emissions by meteor showers different from Leonids. In order to contribute to the solution of this problem we perform an order-of-magnitude calculation of the physical conditions of sodium atoms during meteoroid impacts. This calculation suggests that the lack of sodium emission enhancements during different meteor showers could be caused by the different ionization degree of the sodium atoms which, in turn, depends on the meteoroid impact velocity.

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