Unusual Martian Foreshock Waves Triggered by a Solar Wind Stream Interaction Region
Planetary bow shocks noncollisionally dissipate the incident bulk flow energy of solar wind into some other forms. To what extent and how solar wind disturbances affect the energy dissipation processes at the bow shocks on different planets remain unclear. With the Chinese Tianwen-1 and American Mar...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal Letters |
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| Online Access: | https://doi.org/10.3847/2041-8213/accb9f |
| _version_ | 1797699806877974528 |
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| author | Zhenpeng Su Yuming Wang Tielong Zhang Zhiyong Wu Long Cheng Zhuxuan Zou Chenglong Shen Jingnan Guo Sudong Xiao Guoqiang Wang Zonghao Pan Kai Liu Xinjun Hao Yiren Li Manming Chen Yutian Chi Mengjiao Xu |
| author_facet | Zhenpeng Su Yuming Wang Tielong Zhang Zhiyong Wu Long Cheng Zhuxuan Zou Chenglong Shen Jingnan Guo Sudong Xiao Guoqiang Wang Zonghao Pan Kai Liu Xinjun Hao Yiren Li Manming Chen Yutian Chi Mengjiao Xu |
| author_sort | Zhenpeng Su |
| collection | DOAJ |
| description | Planetary bow shocks noncollisionally dissipate the incident bulk flow energy of solar wind into some other forms. To what extent and how solar wind disturbances affect the energy dissipation processes at the bow shocks on different planets remain unclear. With the Chinese Tianwen-1 and American Mars Atmosphere and Volatile EvolutioN missions, we present the first observation of significant modifications by a solar wind stream interaction region to the Martian foreshock waves, which are an important energy dissipation product of the bow shock. After the stream interface hitting Mars, an unusual band of foreshock waves emerged, with a central frequency of ∼0.4 Hz and frequency width of ∼0.2 Hz. These waves exhibited highly distorted waveforms, with peak-to-peak amplitudes of 10–25 nT in contrast to a background magnetic field of 6–9 nT. They were approximately elliptically polarized with respect to the wavevector and propagated highly obliquely to the background magnetic field. These waves reported here differed greatly from the commonly known Martian foreshock “30 s waves” and “1 Hz waves,” but resembled, to some extent, the less frequently occurring terrestrial foreshock “3 s waves.” Our present findings may imply an unexpected energy dissipation pattern of the Martian bow shock to the disturbed solar wind, which needs further observational, theoretical, and numerical investigations. |
| first_indexed | 2024-03-12T04:13:09Z |
| format | Article |
| id | doaj.art-a89a650bb18846c89f1b53766b73195e |
| institution | Directory Open Access Journal |
| issn | 2041-8205 |
| language | English |
| last_indexed | 2024-03-12T04:13:09Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal Letters |
| spelling | doaj.art-a89a650bb18846c89f1b53766b73195e2023-09-03T10:49:53ZengIOP PublishingThe Astrophysical Journal Letters2041-82052023-01-019472L3310.3847/2041-8213/accb9fUnusual Martian Foreshock Waves Triggered by a Solar Wind Stream Interaction RegionZhenpeng Su0https://orcid.org/0000-0001-5577-4538Yuming Wang1https://orcid.org/0000-0002-8887-3919Tielong Zhang2Zhiyong Wu3Long Cheng4https://orcid.org/0000-0003-0578-6244Zhuxuan Zou5https://orcid.org/0009-0008-9920-9600Chenglong Shen6https://orcid.org/0000-0002-3577-5223Jingnan Guo7Sudong Xiao8Guoqiang Wang9https://orcid.org/0000-0002-6618-4928Zonghao Pan10Kai Liu11https://orcid.org/0000-0003-2573-1531Xinjun Hao12Yiren Li13Manming Chen14Yutian Chi15https://orcid.org/0000-0001-9315-4487Mengjiao Xu16https://orcid.org/0000-0002-2924-7520Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China , Hefei 230026, People's Republic of China ; szpe@mail.ustc.edu.cn, ymwang@ustc.edu.cn; CAS Center for Excellence in Comparative Planetology/CAS Key Laboratory of Geospace Environment/Mengcheng National Geophysical Observatory, University of Science and Technology of China , Hefei 230026, People's Republic of China; Collaborative Innovation Center of Astronautical Science and Technology , Hefei 230026, People's Republic of ChinaDeep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China , Hefei 230026, People's Republic of China ; szpe@mail.ustc.edu.cn, ymwang@ustc.edu.cn; CAS Center for Excellence in Comparative Planetology/CAS Key Laboratory of Geospace Environment/Mengcheng National Geophysical Observatory, University of Science and Technology of China , Hefei 230026, People's Republic of China; Collaborative Innovation Center of Astronautical Science and Technology , Hefei 230026, People's Republic of ChinaInstitute of Space Science and Applied Technology, Harbin Institute of Technology , Shenzhen 518000, People's Republic of China; Space Research Institute , Austrian Academy of Sciences, A-8042 Graz, AustriaDeep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China , Hefei 230026, People's Republic of China ; szpe@mail.ustc.edu.cn, ymwang@ustc.edu.cn; CAS Center for Excellence in Comparative Planetology/CAS Key Laboratory of Geospace Environment/Mengcheng National Geophysical Observatory, University of Science and Technology of China , Hefei 230026, People's Republic of China; Collaborative Innovation Center of Astronautical Science and Technology , Hefei 230026, People's Republic of ChinaDeep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China , Hefei 230026, People's Republic of China ; szpe@mail.ustc.edu.cn, ymwang@ustc.edu.cn; CAS Center for Excellence in Comparative Planetology/CAS Key Laboratory of Geospace Environment/Mengcheng National Geophysical Observatory, University of Science and Technology of China , Hefei 230026, People's Republic of China; Collaborative Innovation Center of Astronautical Science and Technology , Hefei 230026, People's Republic of ChinaDeep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China , Hefei 230026, People's Republic of China ; szpe@mail.ustc.edu.cn, ymwang@ustc.edu.cn; CAS Center for Excellence in Comparative Planetology/CAS Key Laboratory of Geospace Environment/Mengcheng National Geophysical Observatory, University of Science and Technology of China , Hefei 230026, People's Republic of China; Collaborative Innovation Center of Astronautical Science and Technology , Hefei 230026, People's Republic of ChinaDeep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China , Hefei 230026, People's Republic of China ; szpe@mail.ustc.edu.cn, ymwang@ustc.edu.cn; CAS Center for Excellence in Comparative Planetology/CAS Key Laboratory of Geospace Environment/Mengcheng National Geophysical Observatory, University of Science and Technology of China , Hefei 230026, People's Republic of China; Collaborative Innovation Center of Astronautical Science and Technology , Hefei 230026, People's Republic of ChinaDeep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China , Hefei 230026, People's Republic of China ; szpe@mail.ustc.edu.cn, ymwang@ustc.edu.cn; CAS Center for Excellence in Comparative Planetology/CAS Key Laboratory of Geospace Environment/Mengcheng National Geophysical Observatory, University of Science and Technology of China , Hefei 230026, People's Republic of China; Collaborative Innovation Center of Astronautical Science and Technology , Hefei 230026, People's Republic of ChinaInstitute of Space Science and Applied Technology, Harbin Institute of Technology , Shenzhen 518000, People's Republic of ChinaInstitute of Space Science and Applied Technology, Harbin Institute of Technology , Shenzhen 518000, People's Republic of ChinaDeep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China , Hefei 230026, People's Republic of China ; szpe@mail.ustc.edu.cn, ymwang@ustc.edu.cn; CAS Center for Excellence in Comparative Planetology/CAS Key Laboratory of Geospace Environment/Mengcheng National Geophysical Observatory, University of Science and Technology of China , Hefei 230026, People's Republic of China; Collaborative Innovation Center of Astronautical Science and Technology , Hefei 230026, People's Republic of ChinaDeep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China , Hefei 230026, People's Republic of China ; szpe@mail.ustc.edu.cn, ymwang@ustc.edu.cn; CAS Center for Excellence in Comparative Planetology/CAS Key Laboratory of Geospace Environment/Mengcheng National Geophysical Observatory, University of Science and Technology of China , Hefei 230026, People's Republic of China; Collaborative Innovation Center of Astronautical Science and Technology , Hefei 230026, People's Republic of ChinaDeep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China , Hefei 230026, People's Republic of China ; szpe@mail.ustc.edu.cn, ymwang@ustc.edu.cn; CAS Center for Excellence in Comparative Planetology/CAS Key Laboratory of Geospace Environment/Mengcheng National Geophysical Observatory, University of Science and Technology of China , Hefei 230026, People's Republic of China; Collaborative Innovation Center of Astronautical Science and Technology , Hefei 230026, People's Republic of ChinaDeep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China , Hefei 230026, People's Republic of China ; szpe@mail.ustc.edu.cn, ymwang@ustc.edu.cn; CAS Center for Excellence in Comparative Planetology/CAS Key Laboratory of Geospace Environment/Mengcheng National Geophysical Observatory, University of Science and Technology of China , Hefei 230026, People's Republic of China; Collaborative Innovation Center of Astronautical Science and Technology , Hefei 230026, People's Republic of ChinaDeep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China , Hefei 230026, People's Republic of China ; szpe@mail.ustc.edu.cn, ymwang@ustc.edu.cn; CAS Center for Excellence in Comparative Planetology/CAS Key Laboratory of Geospace Environment/Mengcheng National Geophysical Observatory, University of Science and Technology of China , Hefei 230026, People's Republic of China; Collaborative Innovation Center of Astronautical Science and Technology , Hefei 230026, People's Republic of ChinaDeep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China , Hefei 230026, People's Republic of China ; szpe@mail.ustc.edu.cn, ymwang@ustc.edu.cn; CAS Center for Excellence in Comparative Planetology/CAS Key Laboratory of Geospace Environment/Mengcheng National Geophysical Observatory, University of Science and Technology of China , Hefei 230026, People's Republic of China; Collaborative Innovation Center of Astronautical Science and Technology , Hefei 230026, People's Republic of ChinaDeep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China , Hefei 230026, People's Republic of China ; szpe@mail.ustc.edu.cn, ymwang@ustc.edu.cn; CAS Center for Excellence in Comparative Planetology/CAS Key Laboratory of Geospace Environment/Mengcheng National Geophysical Observatory, University of Science and Technology of China , Hefei 230026, People's Republic of China; Collaborative Innovation Center of Astronautical Science and Technology , Hefei 230026, People's Republic of ChinaPlanetary bow shocks noncollisionally dissipate the incident bulk flow energy of solar wind into some other forms. To what extent and how solar wind disturbances affect the energy dissipation processes at the bow shocks on different planets remain unclear. With the Chinese Tianwen-1 and American Mars Atmosphere and Volatile EvolutioN missions, we present the first observation of significant modifications by a solar wind stream interaction region to the Martian foreshock waves, which are an important energy dissipation product of the bow shock. After the stream interface hitting Mars, an unusual band of foreshock waves emerged, with a central frequency of ∼0.4 Hz and frequency width of ∼0.2 Hz. These waves exhibited highly distorted waveforms, with peak-to-peak amplitudes of 10–25 nT in contrast to a background magnetic field of 6–9 nT. They were approximately elliptically polarized with respect to the wavevector and propagated highly obliquely to the background magnetic field. These waves reported here differed greatly from the commonly known Martian foreshock “30 s waves” and “1 Hz waves,” but resembled, to some extent, the less frequently occurring terrestrial foreshock “3 s waves.” Our present findings may imply an unexpected energy dissipation pattern of the Martian bow shock to the disturbed solar wind, which needs further observational, theoretical, and numerical investigations.https://doi.org/10.3847/2041-8213/accb9fPlanetary bow shocksSolar-planetary interactionsCorotating streamsSpace weatherSpace plasmasPlasma physics |
| spellingShingle | Zhenpeng Su Yuming Wang Tielong Zhang Zhiyong Wu Long Cheng Zhuxuan Zou Chenglong Shen Jingnan Guo Sudong Xiao Guoqiang Wang Zonghao Pan Kai Liu Xinjun Hao Yiren Li Manming Chen Yutian Chi Mengjiao Xu Unusual Martian Foreshock Waves Triggered by a Solar Wind Stream Interaction Region The Astrophysical Journal Letters Planetary bow shocks Solar-planetary interactions Corotating streams Space weather Space plasmas Plasma physics |
| title | Unusual Martian Foreshock Waves Triggered by a Solar Wind Stream Interaction Region |
| title_full | Unusual Martian Foreshock Waves Triggered by a Solar Wind Stream Interaction Region |
| title_fullStr | Unusual Martian Foreshock Waves Triggered by a Solar Wind Stream Interaction Region |
| title_full_unstemmed | Unusual Martian Foreshock Waves Triggered by a Solar Wind Stream Interaction Region |
| title_short | Unusual Martian Foreshock Waves Triggered by a Solar Wind Stream Interaction Region |
| title_sort | unusual martian foreshock waves triggered by a solar wind stream interaction region |
| topic | Planetary bow shocks Solar-planetary interactions Corotating streams Space weather Space plasmas Plasma physics |
| url | https://doi.org/10.3847/2041-8213/accb9f |
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