講演情報
[PEM12-P07]Monte Carlo simulation of solar EUV scattering by oxygen ions
*中野 慎也1、穂積 裕太2、齊藤 昭則3 (1.情報・システム研究機構 統計数理研究所、2.電気通信大学、3.京都大学大学院理学研究科地球物理学教室)
キーワード：
酸素イオン、極端紫外光
It has been reported that the Extreme ultraviolet (EUV) at 83.4 nm, which is scattered by oxygen ions (O+), was observed by an imager of ISS-IMAP in the umbra of the Earth. However, the single scattering of solar radiation in the upper atmosphere would not well explain the observation. This study modeled the EUV scattering by a Monte Carlo method. This method allows us to consider multiple scattering. The result suggests the EUV at 83.4 nm is observable even in the umbra. However, the feature of the observation by ISS-IMAP is not necessarily reproduced. Possible reasons of the discrepancy between the simulation and the observation will be discussed.