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1. Evidence of magnetic flux ropes downstream of the heliospheric termination shock

   https://doi.org/10.1088/1742-6596/1620/1/012027  

   Zhao, L L ; Zank, G P ; Adhikari, L ; Hu, Q ; Le Roux, J ( September 2020 , Journal of Physics: Conference Series)

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2. On the Origin of the Sudden Heliospheric Open Magnetic Flux Enhancement During the 2014 Pole Reversal

   https://doi.org/10.3847/1538-4357/ad2b69  

   Heinemann, Stephan G. ; Owens, Mathew J. ; Temmer, Manuela ; Turtle, James A. ; Arge, Charles N. ; Henney, Carl J. ; Pomoell, Jens ; Asvestari, Eleanna ; Linker, Jon A. ; Downs, Cooper ; et al ( April 2024 , The Astrophysical Journal)

   Coronal holes are recognized as the primary sources of heliospheric open magnetic flux (OMF). However, a noticeable gap exists between in situ measured OMF and that derived from remote-sensing observations of the Sun. In this study, we investigate the OMF evolution and its connection to solar structures throughout 2014, with special emphasis on the period from September to October, where a sudden and significant OMF increase was reported. By deriving the OMF evolution at 1 au, modeling it at the source surface, and analyzing solar photospheric data, we provide a comprehensive analysis of the observed phenomenon. First, we establish a strong correlation between the OMF increase and the solar magnetic field derived from a potential-field source-surface model (cc_Pearson= 0.94). Moreover, we find a good correlation between the OMF and the open flux derived from solar coronal holes (cc_Pearson= 0.88), although the coronal holes only contain 14%–32% of the Sun’s total open flux. However, we note that while the OMF evolution correlates with coronal hole open flux, there is no correlation with the coronal hole area evolution (cc_Pearson= 0.0). The temporal increase in OMF correlates with the vanishing remnant magnetic field at the southern pole, caused by poleward flux circulations from the decay of numerous active regions months earlier. Additionally, our analysis suggests a potential link between the OMF enhancement and the concurrent emergence of the largest active region in solar cycle 24. In conclusion, our study provides insights into the strong increase in OMF observed during 2014 September–October.

    

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3. On the Motion of the Heliospheric Magnetic Structure Through the Solar Wind Plasma

   https://doi.org/10.1029/2019JA027377  

   Borovsky, Joseph E. ( February 2020 , Journal of Geophysical Research: Space Physics)
4. Parker Solar Probe Observations of Solar Wind Energetic Proton Beams Produced by Magnetic Reconnection in the Near‐Sun Heliospheric Current Sheet

   https://doi.org/10.1029/2021GL096986  

   Phan, T. D. ; Verniero, J. L. ; Larson, D. ; Lavraud, B. ; Drake, J. F. ; Øieroset, M. ; Eastwood, J. P. ; Bale, S. D. ; Livi, R. ; Halekas, J. S. ; et al ( May 2022 , Geophysical Research Letters)
5. Modeling of Proton Acceleration in a Magnetic Island Inside the Ripple of the Heliospheric Current Sheet

   https://doi.org/10.1134/S0038094619010064  

   Mingalev, O. V. ; Khabarova, O. V. ; Malova, Kh. V. ; Mingalev, I. V. ; Kislov, R. A. ; Mel’nik, M. N. ; Setsko, P. V. ; Zelenyi, L. M. ; Zank, G. P. ( January 2019 , Solar System Research)