Interplanetary shock induced intensification of electron cyclotron harmonic waves in the Earth’s inner magnetosphere
Electron cyclotron harmonic (ECH) waves are electrostatic emissions frequently observed in the Earth’s magnetosphere. By precipitating magnetospheric hot electrons into the ionosphere, ECH waves play a critical role in the formation of diffuse aurora. Previous research has extensively investigated t...
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Frontiers Media S.A.
2024-02-01
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| Series: | Frontiers in Physics |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2024.1334531/full |
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| author | Yi Xie Yi Xie Nigang Liu Nigang Liu Zhenpeng Su Zhenpeng Su Zhenpeng Su Siyang Yi Siyang Yi Zhaoguo He Zhaoguo He Jiang Yu Jiang Yu Kun Li Kun Li Zuzheng Chen Zuzheng Chen Jun Cui Jun Cui |
| author_facet | Yi Xie Yi Xie Nigang Liu Nigang Liu Zhenpeng Su Zhenpeng Su Zhenpeng Su Siyang Yi Siyang Yi Zhaoguo He Zhaoguo He Jiang Yu Jiang Yu Kun Li Kun Li Zuzheng Chen Zuzheng Chen Jun Cui Jun Cui |
| author_sort | Yi Xie |
| collection | DOAJ |
| description | Electron cyclotron harmonic (ECH) waves are electrostatic emissions frequently observed in the Earth’s magnetosphere. By precipitating magnetospheric hot electrons into the ionosphere, ECH waves play a critical role in the formation of diffuse aurora. Previous research has extensively investigated the strong dependence of ECH waves on the geomagnetic activities. In this study, we present the first report of the prompt response of ECH waves to an interplanetary shock on the basis of WIND and Van Allen Probes observations. Our observations and analyses demonstrate that the interplanetary shock compression can increase >0.1 keV hot electron fluxes in the dayside inner magnetosphere, consequently leading to the prompt intensification of ECH waves by promoting the wave instability. These findings expand our comprehension of the impacts of solar wind disturbances on magnetospheric plasma waves and offer fresh insights into solar wind-magnetosphere-ionosphere coupling. |
| first_indexed | 2024-03-08T05:15:13Z |
| format | Article |
| id | doaj.art-8ed9d3ba15d24f1d81d57eb4ab9329e7 |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-03-08T05:15:13Z |
| publishDate | 2024-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-8ed9d3ba15d24f1d81d57eb4ab9329e72024-02-07T04:36:39ZengFrontiers Media S.A.Frontiers in Physics2296-424X2024-02-011210.3389/fphy.2024.13345311334531Interplanetary shock induced intensification of electron cyclotron harmonic waves in the Earth’s inner magnetosphereYi Xie0Yi Xie1Nigang Liu2Nigang Liu3Zhenpeng Su4Zhenpeng Su5Zhenpeng Su6Siyang Yi7Siyang Yi8Zhaoguo He9Zhaoguo He10Jiang Yu11Jiang Yu12Kun Li13Kun Li14Zuzheng Chen15Zuzheng Chen16Jun Cui17Jun Cui18Planetary Environmental and Astrobiological Research Laboratory (PEARL), School of Atmospheric Sciences, Sun Yat-Sen University, Zhuhai, ChinaKey Laboratory of Tropical Atmosphere-Ocean System, Sun Yat-Sen University, Ministry of Education, Zhuhai, ChinaPlanetary Environmental and Astrobiological Research Laboratory (PEARL), School of Atmospheric Sciences, Sun Yat-Sen University, Zhuhai, ChinaKey Laboratory of Tropical Atmosphere-Ocean System, Sun Yat-Sen University, Ministry of Education, Zhuhai, ChinaCAS Center for Excellence in Comparative Planetology, CAS Key Laboratory of Geospace Environment, Mengcheng National Geophysical Observatory, University of Science and Technology of China, Hefei, ChinaDeep Space Exploration Laboratory, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, ChinaCollaborative Innovation Center of Astronautical Science and Technology, Hefei, ChinaPlanetary Environmental and Astrobiological Research Laboratory (PEARL), School of Atmospheric Sciences, Sun Yat-Sen University, Zhuhai, ChinaKey Laboratory of Tropical Atmosphere-Ocean System, Sun Yat-Sen University, Ministry of Education, Zhuhai, ChinaPlanetary Environmental and Astrobiological Research Laboratory (PEARL), School of Atmospheric Sciences, Sun Yat-Sen University, Zhuhai, ChinaKey Laboratory of Tropical Atmosphere-Ocean System, Sun Yat-Sen University, Ministry of Education, Zhuhai, ChinaPlanetary Environmental and Astrobiological Research Laboratory (PEARL), School of Atmospheric Sciences, Sun Yat-Sen University, Zhuhai, ChinaKey Laboratory of Tropical Atmosphere-Ocean System, Sun Yat-Sen University, Ministry of Education, Zhuhai, ChinaPlanetary Environmental and Astrobiological Research Laboratory (PEARL), School of Atmospheric Sciences, Sun Yat-Sen University, Zhuhai, ChinaKey Laboratory of Tropical Atmosphere-Ocean System, Sun Yat-Sen University, Ministry of Education, Zhuhai, ChinaPlanetary Environmental and Astrobiological Research Laboratory (PEARL), School of Atmospheric Sciences, Sun Yat-Sen University, Zhuhai, ChinaKey Laboratory of Tropical Atmosphere-Ocean System, Sun Yat-Sen University, Ministry of Education, Zhuhai, ChinaPlanetary Environmental and Astrobiological Research Laboratory (PEARL), School of Atmospheric Sciences, Sun Yat-Sen University, Zhuhai, ChinaKey Laboratory of Tropical Atmosphere-Ocean System, Sun Yat-Sen University, Ministry of Education, Zhuhai, ChinaElectron cyclotron harmonic (ECH) waves are electrostatic emissions frequently observed in the Earth’s magnetosphere. By precipitating magnetospheric hot electrons into the ionosphere, ECH waves play a critical role in the formation of diffuse aurora. Previous research has extensively investigated the strong dependence of ECH waves on the geomagnetic activities. In this study, we present the first report of the prompt response of ECH waves to an interplanetary shock on the basis of WIND and Van Allen Probes observations. Our observations and analyses demonstrate that the interplanetary shock compression can increase >0.1 keV hot electron fluxes in the dayside inner magnetosphere, consequently leading to the prompt intensification of ECH waves by promoting the wave instability. These findings expand our comprehension of the impacts of solar wind disturbances on magnetospheric plasma waves and offer fresh insights into solar wind-magnetosphere-ionosphere coupling.https://www.frontiersin.org/articles/10.3389/fphy.2024.1334531/fullinterplanetary shockelectron cyclotron harmonic wavesolar wind-magnetosphere-ionosphere couplinginner magnetosphereplasma wave instability |
| spellingShingle | Yi Xie Yi Xie Nigang Liu Nigang Liu Zhenpeng Su Zhenpeng Su Zhenpeng Su Siyang Yi Siyang Yi Zhaoguo He Zhaoguo He Jiang Yu Jiang Yu Kun Li Kun Li Zuzheng Chen Zuzheng Chen Jun Cui Jun Cui Interplanetary shock induced intensification of electron cyclotron harmonic waves in the Earth’s inner magnetosphere Frontiers in Physics interplanetary shock electron cyclotron harmonic wave solar wind-magnetosphere-ionosphere coupling inner magnetosphere plasma wave instability |
| title | Interplanetary shock induced intensification of electron cyclotron harmonic waves in the Earth’s inner magnetosphere |
| title_full | Interplanetary shock induced intensification of electron cyclotron harmonic waves in the Earth’s inner magnetosphere |
| title_fullStr | Interplanetary shock induced intensification of electron cyclotron harmonic waves in the Earth’s inner magnetosphere |
| title_full_unstemmed | Interplanetary shock induced intensification of electron cyclotron harmonic waves in the Earth’s inner magnetosphere |
| title_short | Interplanetary shock induced intensification of electron cyclotron harmonic waves in the Earth’s inner magnetosphere |
| title_sort | interplanetary shock induced intensification of electron cyclotron harmonic waves in the earth s inner magnetosphere |
| topic | interplanetary shock electron cyclotron harmonic wave solar wind-magnetosphere-ionosphere coupling inner magnetosphere plasma wave instability |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2024.1334531/full |
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