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4 papers

astro-ph.SR2026

Ion-Scale Current Sheets Embedded in Reconnection Jet Shear Layer of the Near-Sun Heliospheric Current Sheet

Dae-Young Lee, Dooyoung Choi, Kyung-Eun Choi +1

The paper analyzes high‑resolution Parker Solar Probe data to identify and classify ion‑scale current sheets embedded in the shear layer at the edge of a reconnection jet within th…

physics.space-ph2026

Wave Activity at MHD-ion Scales Associated with Switchbacks

Kyung-Eun Choi, Oleksiy V. Agapitov, Forrest Mozer +9

Magnetic switchbacks (SB) -- the localized magnetic structures with magnetic field direction inclined at an angle relative to the background -- in the young solar wind h…

astro-ph.SR2025

Magnetic flux ropes within reconnection exhausts close to the centers of heliospheric current sheets near the Sun

Dae-Young Lee, Dooyoung Choi, Kyung-Eun Choi +1

Understanding the relationship between magnetic flux ropes and magnetic reconnection is fundamental to both space and astrophysical plasma studies. In this study, we report on two…

astro-ph.SR2025

Switchbacks near Boundaries of Small-scale Magnetic Flux Ropes in the Young Solar Wind from Parker Solar Probe Observations

Kyung-Eun Choi, Oleksiy V. Agapitov, Dae-Young Lee +5

The Parker Solar Probe (PSP) mission has revealed frequent occurrences of switchbacks (SBs) and small-scale magnetic flux ropes (SMFRs) as prominent structures within the solar win…