AUTHOR=Borovsky Joseph E. 

TITLE=Solar-Wind Structures That Are Not Destroyed by the Action of Solar-Wind Turbulence

JOURNAL=Frontiers in Astronomy and Space Sciences

VOLUME=8

YEAR=2021

URL=https://www.frontiersin.org/journals/astronomy-and-space-sciences/articles/10.3389/fspas.2021.721350

DOI=10.3389/fspas.2021.721350

ISSN=2296-987X

ABSTRACT=<p>If MHD turbulence is a dominant process acting in the solar wind between the Sun and 1 AU, then the destruction and regeneration of structure in the solar-wind plasma is expected. Six types of solar-wind structure at 1 AU that are not destroyed by turbulence are examined: <italic>1</italic>) corotating-interaction-region stream interfaces, <italic>2</italic>) periodic density structures, <italic>3</italic>) magnetic structure anisotropy, <italic>4</italic>) ion-composition boundaries and their co-located current sheets, <italic>5</italic>) strahl-intensity boundaries and their co-located current sheets, and <italic>6</italic>) non-evolving Alfvénic magnetic structure. Implications for the solar wind and for turbulence in the solar wind are highlighted and a call for critical future solar-wind measurements is given.</p>