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Coronal plumes are long, ray-like, open structures that have been considered as possible sources of the solar wind. Their origin in the largely unipolar coronal holes has long been a mystery. Earlier spectroscopic and imaging observations revealed blueshifted plasma and propagating disturbances (PDs) in plumes that are widely interpreted in terms of flows and/or propagating slow-mode waves, but these interpretations (flows versus waves) remain under debate. Recently we discovered an important clue about plume internal struct ...
Published by: \apj Published on: jul
YEAR: 2022   DOI: 10.3847/1538-4357/ac6c24
Published by: \apj Published on: 01/2021
YEAR: 2021   DOI: 10.3847/1538-4357/abd186
Solar coronal holes; Solar activity; Solar coronal transients; Solar Coronal Waves; Solar magnetic reconnection; Solar wind; Plasma jets; Solar coronal plumes; Solar extreme ultraviolet emission; Direct imaging; Astronomy data analysis; Solar oscillations; 1484; 1475; 312; 1995; 1504; 1534; 1263; 2039; 1493; 387; 1858; 1515; Astrophysics - Solar and Stellar Astrophysics
Solar coronal jets are small, transient, collimated ejections most easily observed in coronal holes (CHs). The upcoming Parker Solar Probe (PSP) mission provides the first opportunity to encounter CH jets in situ near the Sun and examine their internal structure and dynamics. Using projected mission orbital parameters, we have simulated PSP encounters with a fully three-dimensional magnetohydrodynamic (MHD) model of a CH jet. We find that three internal jet regions, featuring different wave modes and levels of compressibi ...
Published by: The Astrophysical Journal Published on: 10/2018
YEAR: 2018   DOI: 10.3847/1538-4357/aadb41