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

Kimura, Hiroshi and Mann, Ingrid (1999) Filtering of the interstellar dust flow near the heliopause: the importance of secondary electron emission for the grain charging. Earth, Planets and Space, 51 (11). pp. 1223-1232. ISSN 1880-5981. doi:10.1186/BF03351596.

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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^(−18) kg indicates the component of the magnetic field perpendicular to the interstellar dust flow to be less than 0.4 nT.

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Additional Information:© 1999 The Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS); The Seismological Society of Japan; The Volcanological Society of Japan; The Geodetic Society of Japan; The Japanese Society for Planetary Sciences. Received: 24 December 1998; Accepted: 17 September 1999. We thank Priscilla Frisch and an anonymous referee for thoughtful review reports, Alexander Krivov, James F. McKenzie, Romana Ratkiewicz, and Paul J. Ziemann for fruitful communications, and Tadashi Mukai for useful discussions and financial support for one of us (H. K.) at Kobe University. This work was supported by BMBF.
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Kobe UniversityUNSPECIFIED
Bundesministerium für Bildung und Forschung (BMBF)UNSPECIFIED
Issue or Number:11
Record Number:CaltechAUTHORS:20170905-102529728
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:81131
Deposited By: Tony Diaz
Deposited On:05 Sep 2017 19:30
Last Modified:15 Nov 2021 19:41

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