AUTHOR=Borovsky Joseph E. 

TITLE=The examination of small-scale magnetic-field structures in the solar wind using two spacecraft 

JOURNAL=Frontiers in Astronomy and Space Sciences

VOLUME=Volume 12 - 2025

YEAR=2025

URL=https://www.frontiersin.org/journals/astronomy-and-space-sciences/articles/10.3389/fspas.2025.1624731

DOI=10.3389/fspas.2025.1624731

ISSN=2296-987X

ABSTRACT=To explore some properties of small-scale magnetic structures in the solar wind at 1 AU, measurements from the THEMIS-ARTEMIS mission with two spacecraft in orbit around the Earth’s moon are used. The small-scale magnetic structures are categorized into four types: discontinuities (current sheets), magnetic flux tubes (including twisted flux tubes), magnetic holes, and small-amplitude magnetic-field fluctuations. The large-scale solar-wind structures in which the small-scale structures are investigated are noted. The two-spacecraft measurements are used to examined differences in the structures over spatial scales of a few RE. Further, a two-spacecraft methodology was used to examine the planarity of discontinuities over scales of a few Earth radii.