Variations of Heavy Ions in Interplanetary Shock Driven by Interplanetary Coronal Mass Ejections and Stream Interaction Regions
In the solar wind, the fluctuation of heavy ion abundance serves as a crucial physical metric. This not only mirrors the attributes of the solar wind’s originating solar region but also signifies its influence on Earth’s magnetosphere. Utilizing data from the Advanced Composition Explorer satellite,...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2024-01-01
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| Series: | The Astrophysical Journal Supplement Series |
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| Online Access: | https://doi.org/10.3847/1538-4365/ad2fb2 |
| _version_ | 1797201753464111104 |
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| author | Cong Wang Qian Ye Mu Li Fei He Xiaoxin Zhang |
| author_facet | Cong Wang Qian Ye Mu Li Fei He Xiaoxin Zhang |
| author_sort | Cong Wang |
| collection | DOAJ |
| description | In the solar wind, the fluctuation of heavy ion abundance serves as a crucial physical metric. This not only mirrors the attributes of the solar wind’s originating solar region but also signifies its influence on Earth’s magnetosphere. Utilizing data from the Advanced Composition Explorer satellite, this investigation scrutinizes heavy ion variations in stream interaction region (SIR)- and interplanetary coronal mass ejection (ICME)-driven shocks. We further delineate the disparities in heavy ion fluctuations between these two types of interplanetary shocks across diverse solar activity cycles. Our findings reveal that ICME-driven shocks typically manifest elevated shock velocities and magnetic field strengths relative to their SIR-driven counterparts. Additionally, heavy ion abundance ratios, such as C ^6+ /O ^4+ , O ^7+ /O ^6+ , He/O, Si/O, and Fe/O, are consistently higher in ICME-driven shocks than in SIR-driven shocks. During varying solar activity cycles, these ratios surge postarrival of ICME-driven shocks. At solar maximum, these elevated ratios persist, whereas they revert to baseline levels swiftly during solar minimum. For SIR-driven shocks, the alteration in heavy ion abundance ratios is comparatively subdued, yet a noteworthy correlation with the solar activity cycle is evident. |
| first_indexed | 2024-04-24T07:52:33Z |
| format | Article |
| id | doaj.art-bde913015d1c43fcb5e84be96619899d |
| institution | Directory Open Access Journal |
| issn | 0067-0049 |
| language | English |
| last_indexed | 2024-04-24T07:52:33Z |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
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| series | The Astrophysical Journal Supplement Series |
| spelling | doaj.art-bde913015d1c43fcb5e84be96619899d2024-04-18T09:45:46ZengIOP PublishingThe Astrophysical Journal Supplement Series0067-00492024-01-012721310.3847/1538-4365/ad2fb2Variations of Heavy Ions in Interplanetary Shock Driven by Interplanetary Coronal Mass Ejections and Stream Interaction RegionsCong Wang0https://orcid.org/0000-0001-8111-1156Qian Ye1Mu Li2Fei He3https://orcid.org/0000-0003-0542-2686Xiaoxin Zhang4Nanjing University of Information Science & Technology , Nanjing, People’s Republic of China; Chinese Academy of Meteorological Sciences , Beijing, People’s Republic of China; Key Laboratory of Space Weather , National Satellite Meteorological Center (National Center for Space Weather), China Meteorological Administration, Beijing, People’s Republic of China ; xxzhang@cma.gov.cnKey Laboratory of Space Weather , National Satellite Meteorological Center (National Center for Space Weather), China Meteorological Administration, Beijing, People’s Republic of China ; xxzhang@cma.gov.cn; Innovation Center for FengYun Meteorological Satellite (FYSIC) , Beijing, People’s Republic of ChinaKey Laboratory of Space Weather , National Satellite Meteorological Center (National Center for Space Weather), China Meteorological Administration, Beijing, People’s Republic of China ; xxzhang@cma.gov.cn; Innovation Center for FengYun Meteorological Satellite (FYSIC) , Beijing, People’s Republic of ChinaKey Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences , Beijing, People’s Republic of China ; hefei@mail.iggcas.ac.cnKey Laboratory of Space Weather , National Satellite Meteorological Center (National Center for Space Weather), China Meteorological Administration, Beijing, People’s Republic of China ; xxzhang@cma.gov.cn; Innovation Center for FengYun Meteorological Satellite (FYSIC) , Beijing, People’s Republic of ChinaIn the solar wind, the fluctuation of heavy ion abundance serves as a crucial physical metric. This not only mirrors the attributes of the solar wind’s originating solar region but also signifies its influence on Earth’s magnetosphere. Utilizing data from the Advanced Composition Explorer satellite, this investigation scrutinizes heavy ion variations in stream interaction region (SIR)- and interplanetary coronal mass ejection (ICME)-driven shocks. We further delineate the disparities in heavy ion fluctuations between these two types of interplanetary shocks across diverse solar activity cycles. Our findings reveal that ICME-driven shocks typically manifest elevated shock velocities and magnetic field strengths relative to their SIR-driven counterparts. Additionally, heavy ion abundance ratios, such as C ^6+ /O ^4+ , O ^7+ /O ^6+ , He/O, Si/O, and Fe/O, are consistently higher in ICME-driven shocks than in SIR-driven shocks. During varying solar activity cycles, these ratios surge postarrival of ICME-driven shocks. At solar maximum, these elevated ratios persist, whereas they revert to baseline levels swiftly during solar minimum. For SIR-driven shocks, the alteration in heavy ion abundance ratios is comparatively subdued, yet a noteworthy correlation with the solar activity cycle is evident.https://doi.org/10.3847/1538-4365/ad2fb2Solar coronal mass ejection shocksSolar windAbundance ratiosCorotating streams |
| spellingShingle | Cong Wang Qian Ye Mu Li Fei He Xiaoxin Zhang Variations of Heavy Ions in Interplanetary Shock Driven by Interplanetary Coronal Mass Ejections and Stream Interaction Regions The Astrophysical Journal Supplement Series Solar coronal mass ejection shocks Solar wind Abundance ratios Corotating streams |
| title | Variations of Heavy Ions in Interplanetary Shock Driven by Interplanetary Coronal Mass Ejections and Stream Interaction Regions |
| title_full | Variations of Heavy Ions in Interplanetary Shock Driven by Interplanetary Coronal Mass Ejections and Stream Interaction Regions |
| title_fullStr | Variations of Heavy Ions in Interplanetary Shock Driven by Interplanetary Coronal Mass Ejections and Stream Interaction Regions |
| title_full_unstemmed | Variations of Heavy Ions in Interplanetary Shock Driven by Interplanetary Coronal Mass Ejections and Stream Interaction Regions |
| title_short | Variations of Heavy Ions in Interplanetary Shock Driven by Interplanetary Coronal Mass Ejections and Stream Interaction Regions |
| title_sort | variations of heavy ions in interplanetary shock driven by interplanetary coronal mass ejections and stream interaction regions |
| topic | Solar coronal mass ejection shocks Solar wind Abundance ratios Corotating streams |
| url | https://doi.org/10.3847/1538-4365/ad2fb2 |
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