Notice:
|
Evidence that Interaction with the Spacecraft Plasma Wake Generates Plasma Waves Close to the Electron Cyclotron Frequency in the Near-Sun Solar Wind
Author | Malaspina, David; Tigik, Sabrina; Vaivads, Andris; |
Keywords | Parker Data Used; Solar wind; space vehicles; Space plasmas; 1534; 1549; 1544 |
Abstract | Prior observations of the near-Sun solar wind (sunward of 0.25 au) identified frequent, intense plasma waves near the local electron cyclotron frequency (f $_ce$), and its harmonics. In this Letter, it is shown that near-f $_ce$ wave properties are consistent with generation via interaction between the observing spacecraft s ion wake and the ambient plasma and magnetic fields. This result implies that many observed near-f $_ce$ waves are not intrinsic to the unobstructed solar wind flow, and therefore are unlikely to play a significant role in the dynamic evolution of particle distributions in the solar wind. |
Year of Publication | 2022 |
Journal | \apjl |
Volume | 936 |
Number of Pages | L20 |
Section | |
Date Published | sep |
ISBN | |
URL | |
DOI | 10.3847/2041-8213/ac8c8f |