Meteoritic influence on sodium and potassium abundance in the lunar exosphere measured by LADEE

Jamey R. Szalay, Mihály Horányi, Anthony Colaprete, Menelaos Sarantos

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

The Lunar Atmosphere and Dust Environment Explorer (LADEE) orbited the Moon for approximately 6 months, taking data with the Lunar Dust Experiment (LDEX), Ultraviolet-Visible Spectrometer (UVS), and Neutral Mass Spectrometer (NMS). Here we compare coincident LDEX measurements of meteoritic influx to exospheric column densities of Na and K derived by UVS. We report a strong correlation of exospheric potassium and meteoroid ejecta during the Geminids meteoroid shower, exhibiting a much stronger response than sodium. With the exception of the Geminids, we find a weak correlation between the sporadic meteoroid influx as measured by LDEX and exospheric density as measured by UVS.

Original languageEnglish (US)
Pages (from-to)6096-6102
Number of pages7
JournalGeophysical Research Letters
Volume43
Issue number12
DOIs
StatePublished - 2016
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Geophysics
  • General Earth and Planetary Sciences

Keywords

  • Dust
  • Exosphere
  • Moon

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