Evidence of the hall effect providing the core field inside a magnetic flux 
rope in an antiparallel magnetic reconnection

Zhang, Yongcun; Dai, Lei; Tang, Si Yao; Wang, Chi

doi:10.57757/IUGG23-0053

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Evidence of the hall effect providing the core field inside a magnetic flux rope in an antiparallel magnetic reconnection

Authors

Zhang, Yongcun
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Dai, Lei
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Tang, Si Yao
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Wang, Chi
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Citation

Zhang, Y., Dai, L., Tang, S. Y., Wang, C. (2023): Evidence of the hall effect providing the core field inside a magnetic flux rope in an antiparallel magnetic reconnection, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-0053

Cite as: https://gfzpublic.gfz.de/pubman/item/item_5017042

Abstract

The observations from the Magnetospheric Multiscale mission on 2015 November 12 showed the existence oftripolar Hall magnetic fields north of the X line in a quasi-antiparallel reconnection at the dayside of themagnetopause. The bipolar variation in the normal component of the magnetic field inside the middle polar regionof the tripolar Hall fields indicated the presence of an ion-scale magnetic flux rope. The coexistence of Hall fieldsand a magnetic flux rope provides the first evidence that the Hall effect in quasi-antiparallel magnetic reconnectioncan generate the core field inside a magnetic flux rope. There is one dip in the core field of the observed magneticflux rope. We interpret the core field and the dip with the Hall effect associated with sequential multiple-X-linereconnection. The results of this study shed light on the mechanism of the generation of the core field inside themagnetic flux rope.