Filtering of the interstellar dust flow near the heliopause:the importance of secondary electron emission for the grain charging

スポンサーリンク

概要

• 論文の詳細を見る

• The deflection of interstellar dust grains in the magnetic field near the heliopause depends on their surface electric charge. We study the electric charging of the grains with emphasis on the secondary electron emission because of its importance in the hot plasma environment near the heliopause. We correct previous models of the secondary electron emission that overestimate the electric charge of dust near the heliopause. Our model calculations of the grain charge, when combined with results from in situ measurements of interstellar dust in the heliosphere, place an upper limit on the magnetic field strength. We find that the detection of interstellar dust with mass of 10<SUP>-18</SUP> kg indicates the component of the magnetic field perpendicular to the interstellar dust flow to be less than 0.4 nT.

• 公益社団法人 日本地震学会、地球電磁気・地球惑星圏学会 、特定非営利活動法人 日本火山学会、日本測地学会、日本惑星科学会の論文

著者

• KIMURA Hiroshi

  Max-Planck-Institut fur Aeronomie

• MANN Ingrid

  Max-Planck-Institut fur Aeronomie

関連論文

• Filtering of the interstellar dust flow near the heliopause:the importance of secondary electron emission for the grain charging
• The circumsolar dust complex and solar magnetic field
• Brightness of the solar F-corona
• Filtering of the interstellar dust flow near the heliopause:the importance of secondary electron emission for the grain charging

スポンサーリンク