Home » Yu et al. 2018

Response of Banded Whistler Mode Waves to the Enhancement of Solar Wind Dynamic Pressure in the Inner Earth's Magnetosphere

Yu X., Z. Yuan, H. Li, S. Huang, D. Wang, F. Yao, H. O. Funsten, J. R. Wygant, (2018), Response of Banded Whistler Mode Waves to the Enhancement of Solar Wind Dynamic Pressure in the Inner Earth’s Magnetosphere, Geophysical Research Letters, 45, 8755-8763, doi:10.1029/2018GL078849

Abstract

Abstract With observations of Van Allen Probe A, in this letter we display a typical event where banded whistler waves shifted up their frequencies with frequency bands broadening as a response to the enhancement of solar wind dynamic pressure. Meanwhile, the anisotropy of electrons with energies about several tens of keV was observed to increase. Through the comparison of the calculated wave growth rates and observed wave spectral intensity, we suggest that those banded whistler waves observed with frequencies shifted up and frequency bands broadening could be locally excited by these hot electrons with increased anisotropy. The current study provides a great in situ evidence for the influence on frequencies of banded whistler waves by the enhancement of solar wind dynamic pressures, which reveals the important role of solar wind dynamic pressures playing in the frequency properties of banded whistler waves.

Authors (sorted by name)

Funsten Huang Li Wang Wygant Yao Yu Yuan

Journal / Conference

Geophysical Research Letters

Bibtex

@article{doi:10.1029/2018GL078849,
author = {Yu, Xiongdong and Yuan, Zhigang and Li, Haimeng and Huang, Shiyong and Wang, Dedong and Yao, Fei and Funsten, H. O. and Wygant, J. R.},
title = {Response of Banded Whistler Mode Waves to the Enhancement of Solar Wind Dynamic Pressure in the Inner Earth's Magnetosphere},
journal = {Geophysical Research Letters},
volume = {45},
number = {17},
pages = {8755-8763},
keywords = {banded whistler mode waves, solar wind dynamic pressure, inner, magnetosphere, frequency properties},
doi = {10.1029/2018GL078849},
url = {https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018GL078849},
eprint = {https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2018GL078849},
abstract = {Abstract With observations of Van Allen Probe A, in this letter we display a typical event where banded whistler waves shifted up their frequencies with frequency bands broadening as a response to the enhancement of solar wind dynamic pressure. Meanwhile, the anisotropy of electrons with energies about several tens of keV was observed to increase. Through the comparison of the calculated wave growth rates and observed wave spectral intensity, we suggest that those banded whistler waves observed with frequencies shifted up and frequency bands broadening could be locally excited by these hot electrons with increased anisotropy. The current study provides a great in situ evidence for the influence on frequencies of banded whistler waves by the enhancement of solar wind dynamic pressures, which reveals the important role of solar wind dynamic pressures playing in the frequency properties of banded whistler waves.},
year = {2018}}