Solar Coronal Mass Ejection and Post–Coronal Mass Ejection Blob Formation in Two-fluid Simulations
A coronal mass ejection (CME) and post-CME blob phenomena in the solar atmosphere, associated with shear flow and convergent flow perturbations in the photosphere, are investigated using a resistive two-fluid (electron–ion) code. It is found that there are notable deviations between the two-fluid an...
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IOP Publishing
2025-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/ada951 |
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| author | J. C. Du Z. W. Ma |
| author_facet | J. C. Du Z. W. Ma |
| author_sort | J. C. Du |
| collection | DOAJ |
| description | A coronal mass ejection (CME) and post-CME blob phenomena in the solar atmosphere, associated with shear flow and convergent flow perturbations in the photosphere, are investigated using a resistive two-fluid (electron–ion) code. It is found that there are notable deviations between the two-fluid and previous magnetohydrodynamic simulations. In this two-fluid approach, the decoupling motions of ions and electrons leads to the emergence of an additional electric field. With expansion of a magnetic arcade associated with the footpoint shear flows, a thin current sheet is formed and a series of magnetic reconnections occurs in the lower region of the central magnetic arcade. The initial reconnection gives rise to a rising magnetic island, displaying typical CME characteristics. Subsequent reconnections produce smaller, more rapidly ascending blobs. These smaller blobs ultimately merge with the primary CME core, thereby accelerating its ascent. |
| format | Article |
| id | doaj-art-fec9654aa311477dbd3ea6c7368d72c8 |
| institution | Kabale University |
| issn | 1538-4357 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj-art-fec9654aa311477dbd3ea6c7368d72c82025-02-07T06:32:03ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-01980112010.3847/1538-4357/ada951Solar Coronal Mass Ejection and Post–Coronal Mass Ejection Blob Formation in Two-fluid SimulationsJ. C. Du0Z. W. Ma1https://orcid.org/0000-0001-6199-9389Institute for Fusion Theory and Simulation, Department of Physics, Zhejiang University , Hangzhou 310027, People's Republic of China ; [email protected] for Fusion Theory and Simulation, Department of Physics, Zhejiang University , Hangzhou 310027, People's Republic of China ; [email protected] coronal mass ejection (CME) and post-CME blob phenomena in the solar atmosphere, associated with shear flow and convergent flow perturbations in the photosphere, are investigated using a resistive two-fluid (electron–ion) code. It is found that there are notable deviations between the two-fluid and previous magnetohydrodynamic simulations. In this two-fluid approach, the decoupling motions of ions and electrons leads to the emergence of an additional electric field. With expansion of a magnetic arcade associated with the footpoint shear flows, a thin current sheet is formed and a series of magnetic reconnections occurs in the lower region of the central magnetic arcade. The initial reconnection gives rise to a rising magnetic island, displaying typical CME characteristics. Subsequent reconnections produce smaller, more rapidly ascending blobs. These smaller blobs ultimately merge with the primary CME core, thereby accelerating its ascent.https://doi.org/10.3847/1538-4357/ada951Solar coronal mass ejectionsSolar coronaSolar magnetic reconnection |
| spellingShingle | J. C. Du Z. W. Ma Solar Coronal Mass Ejection and Post–Coronal Mass Ejection Blob Formation in Two-fluid Simulations The Astrophysical Journal Solar coronal mass ejections Solar corona Solar magnetic reconnection |
| title | Solar Coronal Mass Ejection and Post–Coronal Mass Ejection Blob Formation in Two-fluid Simulations |
| title_full | Solar Coronal Mass Ejection and Post–Coronal Mass Ejection Blob Formation in Two-fluid Simulations |
| title_fullStr | Solar Coronal Mass Ejection and Post–Coronal Mass Ejection Blob Formation in Two-fluid Simulations |
| title_full_unstemmed | Solar Coronal Mass Ejection and Post–Coronal Mass Ejection Blob Formation in Two-fluid Simulations |
| title_short | Solar Coronal Mass Ejection and Post–Coronal Mass Ejection Blob Formation in Two-fluid Simulations |
| title_sort | solar coronal mass ejection and post coronal mass ejection blob formation in two fluid simulations |
| topic | Solar coronal mass ejections Solar corona Solar magnetic reconnection |
| url | https://doi.org/10.3847/1538-4357/ada951 |
| work_keys_str_mv | AT jcdu solarcoronalmassejectionandpostcoronalmassejectionblobformationintwofluidsimulations AT zwma solarcoronalmassejectionandpostcoronalmassejectionblobformationintwofluidsimulations |