Interaction between Mercury's magnetosphere and surface

2012 Fiscal Year Final Research Report

• Project/Area Number: 23740370
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Space and upper atmospheric physics
• Research Institution: Rikkyo University
• Principal Investigator: KAMEDA Shingo 立教大学, 理学部, 准教授 (30455464)
• Project Period (FY): 2011 – 2012
• Keywords: 水星ナトリウム地上観測

Research Abstract

Mercury has a thin atmosphere. The most probable primary source process is solar windproton impact. CMEs toward Mercury probably cause the increase of the sodium density. We observed Mercury’s sodium exosphere when MESSENGER observed variation of solar wind magnetic field, which indicated CMEs arrived at Mercury. Despite this, our results havenot shown large variation of the sodium density.

Research Products

• [Presentation] Temporal variation of Mercury's sodium density (2013)
  • Author(s): Fusegawa, A., Dairoku, H., Kameda, S., Kagitani, M., Okano, S.
  • Organizer: European Geoscience Union General Assembly
  • Place of Presentation: ウィーン(オーストリア
  • Year and Date: 2013-04-08
• [Presentation] 水星ナトリウム大気分光カメラ MSASI フライトモデルの性能試験 (2012)
  • Author(s): 亀田真吾 , 村上豪 , 吉川一朗 Oleg Korablev, Victor Gnedykh, David Rees
  • Organizer: 2012 年 SGEPSS 秋学会
  • Place of Presentation: 札幌
  • Year and Date: 2012-10-22
• [Presentation] Current Status of Mercury Sodium Atmosphere Spectral Imager (MSASI) on BepiColombo/MMO (2012)
  • Author(s): Kameda, S., Murakami, G., Yoshikawa, I., Korablev, O., Gnedykh, V., Rees, D
  • Organizer: Asia Oceania Geo- science Union General Assembly 2012
  • Place of Presentation: シンガポール(シンガポール)
  • Year and Date: 2012-08-14
• [Presentation] Time variability of sodium density in Mercury's atmosphere (2012)
  • Author(s): Dairoku, H., Kameda, S., Fusegawa, A., Kagitani, M., Okano, S
  • Organizer: Asia Oceania Geoscience Union GeneralAssembly 2012
  • Place of Presentation: シンガポール(シンガポール)
  • Year and Date: 2012-08-14
• [Presentation] 水星ナトリウムテイルの観測から推測される大気放出量の時間変動 (2011)
  • Author(s): 亀田真吾他
  • Organizer: 2011年SGEPSS秋学会
  • Place of Presentation: 神戸大学
  • Year and Date: 2011-11-05
• [Presentation] Evidence of a meteoroid impact or variability of solar wind fluxin Mercury's sodium tail (2011)
  • Author(s): 亀田真吾他
  • Organizer: 2011年惑星科学会秋季講演会
  • Place of Presentation: 相模女子大学
  • Year and Date: 2011-10-24
• [Presentation] Temporal variability of Mercury's atmospheric Na (2011)
  • Author(s): Shingo Kameda
  • Organizer: AOGS2011
  • Place of Presentation: 台北(台湾)
  • Year and Date: 2011-08-11
• [Presentation] Interplanetary Dust Distribution Near Mercury's Orbit Inferred from the Long-term Variability of Mercury's Exospheric Sodium Density, (2011)
  • Author(s): Shingo Kameda
  • Organizer: AOGS2011
  • Place of Presentation: 台北(台湾)
  • Year and Date: 2011-08-09
• [Presentation] 水星外圏ナトリウム密度の長期変動 (2011)
  • Author(s): 亀田真吾他
  • Organizer: JpGU2011
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2011-05-24