5:15 PM - 6:30 PM
[PPS13-P09] Kaguya observation of oxygen ion precipitation from the Earth to the Moon
Keywords:Isotope of the Moon, Kaguya spacecraft, Mass analyses
One of the reasons of the similarity of the isotope ratio is isotope exchange with water from the Earth especially in lunar samples arrived via meteorites. We propose the other reason, oxygen ion transport from the Earth to the Moon, because many satellites such as GEOTAIL and STEREO observed the oxygen ion escape from the Earth in the Earth's magnetotail.
KAGUYA, a Japanese lunar orbiter, conducted scientific observation in 100 km altitude in 2008. An ion mass analyzer on KAGUYA detected oxygen ions coming from the Earth to the Moon in the Earth's magnetosphere. Here we show the amount of the oxygen ion transport estimated by using KAGUYA data and discuss the effect to measuring the isotope ratios.