Survey of Whistler‐Mode Wave Amplitudes and Frequency Spectra in Jupiter's Magnetosphere
Abstract We present statistical distributions of whistler‐mode chorus and hiss waves at frequencies ranging from the local proton gyrofrequency to the equatorial electron gyrofrequency ( f ce,eq ) in Jupiter's magnetosphere based on Juno measurements. The chorus wave power spectral densities usually follow the f ce,eq variation with major wave power concentrated in the 0.05 f ce,eq – f ce,eq frequency range. The hiss wave frequencies are less dependent on f ce,eq variation than chorus with major power concentrated below 0.05 f ce,eq , showing a separation from chorus at M < 10. Our survey indicates that chorus waves are mainly observed at 5.5 < M < 13 from the magnetic equator to 20° latitude, consistent with local wave generation near the equator and damping effects. The hiss wave powers extend to 50° latitude, suggesting longer wave propagation paths without attenuation. Our survey also includes the whistler‐mode waves at high latitudes which may originate from the Io footprint, auroral hiss, or propagating hiss waves reflected to high M shells.
Authors
- Qianli Ma (ORCID: https://orcid.org/0000-0001-5452-4756)
- Wen Li (ORCID: https://orcid.org/0000-0003-3495-4550)
- Murong Qin (ORCID: https://orcid.org/0000-0002-5770-6261)
- Jacob Bortnik (ORCID: https://orcid.org/0000-0001-8811-8836)
- Conrad Meyer‐Reed (ORCID: https://orcid.org/0000-0002-4950-5566)
- Ning Kang (ORCID: https://orcid.org/0000-0002-7317-8665)
- Xiao‐Jia Zhang (ORCID: https://orcid.org/0000-0002-4185-5465)
- W. S. Kŭrth (ORCID: https://orcid.org/0000-0002-5471-6202)
- Anton Artemyev (ORCID: https://orcid.org/0000-0001-8823-4474)
- J. D. Menietti (ORCID: https://orcid.org/0000-0001-6737-251X)
- Xiaochen Shen (ORCID: https://orcid.org/0000-0003-1743-4262)
- S. J. Bolton (ORCID: https://orcid.org/0000-0002-9115-0789)
- G. B. Hospodarsky (ORCID: https://orcid.org/0000-0001-9200-9878)
Institutions
- Boston University (US)
- University of Iowa (US)
- Southwest Research Institute (US)
- Planetary Science Institute (US)
- University of California, Los Angeles (US)
- The University of Texas at Dallas (US)
Publication Details
- Journal
- Geophysical Research Letters
- Published
- 2024-11-18
- DOI
- https://doi.org/10.1029/2024gl111882
- Citations
- 6
- Primary Topic
- Astro and Planetary Science
- Type
- article
- Field-Weighted Citation Impact
- 1.99
Funders
- National Aeronautics and Space Administration
- Division of Atmospheric and Geospace Sciences
- Heliophysics Division
- Planetary Science Division