Trapping of Whistler Waves in the Magnetic Hole at a Dipolarization Front
Abstract Dipolarization fronts (DFs) host plentiful dynamics in the magnetotail. Small‐scale magnetic structures and waves are frequently found at and around the DFs. Whistler waves are closely related to DFs, and the flux pileup regions (FPRs) behind DFs are thought to be the source regions of the...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-04-01
|
| Series: | Geophysical Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1029/2024GL114268 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849321486264827904 |
|---|---|
| author | K. Jiang S. Y. Huang X. D. Yu Z. G. Yuan Q. Y. Xiong R. T. Lin L. Yu |
| author_facet | K. Jiang S. Y. Huang X. D. Yu Z. G. Yuan Q. Y. Xiong R. T. Lin L. Yu |
| author_sort | K. Jiang |
| collection | DOAJ |
| description | Abstract Dipolarization fronts (DFs) host plentiful dynamics in the magnetotail. Small‐scale magnetic structures and waves are frequently found at and around the DFs. Whistler waves are closely related to DFs, and the flux pileup regions (FPRs) behind DFs are thought to be the source regions of the whistler waves around DFs. Statistically, whistler waves are much more frequently observed in FPRs than at DFs. Here, we present an observation of whistler waves in a magnetic hole at a DF. Theoretical calculations show that the observed whistler waves can be trapped in the magnetic hole. Furthermore, theoretical calculations suggest that whistler waves cannot be trapped at a DF if the DF has no sub‐structures. Our results indicate the importance of the magnetic structures on the propagation of whistler waves around the DFs and could explain why whistler waves are rarely observed at the DFs. |
| format | Article |
| id | doaj-art-3d1f44be64db416d80c68694739b1fae |
| institution | Kabale University |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-3d1f44be64db416d80c68694739b1fae2025-08-20T03:49:45ZengWileyGeophysical Research Letters0094-82761944-80072025-04-01527n/an/a10.1029/2024GL114268Trapping of Whistler Waves in the Magnetic Hole at a Dipolarization FrontK. Jiang0S. Y. Huang1X. D. Yu2Z. G. Yuan3Q. Y. Xiong4R. T. Lin5L. Yu6School of Earth and Space Science and Technology, Hubei Luojia Laboratory Wuhan University Wuhan ChinaSchool of Earth and Space Science and Technology, Hubei Luojia Laboratory Wuhan University Wuhan ChinaSchool of Earth and Space Science and Technology, Hubei Luojia Laboratory Wuhan University Wuhan ChinaSchool of Earth and Space Science and Technology, Hubei Luojia Laboratory Wuhan University Wuhan ChinaSchool of Earth and Space Science and Technology, Hubei Luojia Laboratory Wuhan University Wuhan ChinaSchool of Earth and Space Science and Technology, Hubei Luojia Laboratory Wuhan University Wuhan ChinaSchool of Earth and Space Science and Technology, Hubei Luojia Laboratory Wuhan University Wuhan ChinaAbstract Dipolarization fronts (DFs) host plentiful dynamics in the magnetotail. Small‐scale magnetic structures and waves are frequently found at and around the DFs. Whistler waves are closely related to DFs, and the flux pileup regions (FPRs) behind DFs are thought to be the source regions of the whistler waves around DFs. Statistically, whistler waves are much more frequently observed in FPRs than at DFs. Here, we present an observation of whistler waves in a magnetic hole at a DF. Theoretical calculations show that the observed whistler waves can be trapped in the magnetic hole. Furthermore, theoretical calculations suggest that whistler waves cannot be trapped at a DF if the DF has no sub‐structures. Our results indicate the importance of the magnetic structures on the propagation of whistler waves around the DFs and could explain why whistler waves are rarely observed at the DFs.https://doi.org/10.1029/2024GL114268dipolarization frontmagnetic holewhistler waves |
| spellingShingle | K. Jiang S. Y. Huang X. D. Yu Z. G. Yuan Q. Y. Xiong R. T. Lin L. Yu Trapping of Whistler Waves in the Magnetic Hole at a Dipolarization Front Geophysical Research Letters dipolarization front magnetic hole whistler waves |
| title | Trapping of Whistler Waves in the Magnetic Hole at a Dipolarization Front |
| title_full | Trapping of Whistler Waves in the Magnetic Hole at a Dipolarization Front |
| title_fullStr | Trapping of Whistler Waves in the Magnetic Hole at a Dipolarization Front |
| title_full_unstemmed | Trapping of Whistler Waves in the Magnetic Hole at a Dipolarization Front |
| title_short | Trapping of Whistler Waves in the Magnetic Hole at a Dipolarization Front |
| title_sort | trapping of whistler waves in the magnetic hole at a dipolarization front |
| topic | dipolarization front magnetic hole whistler waves |
| url | https://doi.org/10.1029/2024GL114268 |
| work_keys_str_mv | AT kjiang trappingofwhistlerwavesinthemagneticholeatadipolarizationfront AT syhuang trappingofwhistlerwavesinthemagneticholeatadipolarizationfront AT xdyu trappingofwhistlerwavesinthemagneticholeatadipolarizationfront AT zgyuan trappingofwhistlerwavesinthemagneticholeatadipolarizationfront AT qyxiong trappingofwhistlerwavesinthemagneticholeatadipolarizationfront AT rtlin trappingofwhistlerwavesinthemagneticholeatadipolarizationfront AT lyu trappingofwhistlerwavesinthemagneticholeatadipolarizationfront |