Frequency-dispersed Ion Acoustic Waves in the Near-Sun Solar Wind: Signatures of Impulsive Ion Beams

This work reports a novel plasma wave observation in the near-Sun solar wind: frequency-dispersed ion acoustic waves. Similar waves have previously been reported in association with interplanetary shocks or planetary bow shocks, but the waves reported here occur throughout the solar wind sunward of...

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Bibliographic Details

Published in:	The Astrophysical Journal
Main Authors:	David M. Malaspina, Robert E. Ergun, Iver H. Cairns, Benjamin Short, Jaye L. Verniero, Cynthia Cattell, Roberto Livi
Format:	Article
Language:	English
Published:	IOP Publishing 2024-01-01
Subjects:	Solar wind Space plasmas Interplanetary particle acceleration Heliosphere
Online Access:	https://doi.org/10.3847/1538-4357/ad4b12