Articles | Volume 34, issue 6
ANGEO Communicates
23 Jun 2016
ANGEO Communicates |  | 23 Jun 2016

Secondary electron emission from meteoric smoke particles inside the polar ionosphere

Carsten Baumann, Markus Rapp, and Antti Kero

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Measurement report: Rocket-borne measurements of heavy ions in the mesosphere and lower thermosphere – Detection of meteor smoke particles
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This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
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Meteor smoke particles (MSPs), originating from evaporated meteoric matter at 60–110 km altitude, are present in the whole atmosphere including polar regions. As electron precipitation is present at high latitudes, these MSPs are bombarded by energetic electrons. The energetic electrons can enter the MSPs and excite secondary electrons. That can lead to a change of the charge state of these MSPs. The study finds that other charging processes, e.g., electron attachment, are more important.