Parker solar probe: Four years of discoveries at solar cycle minimum

NE Raouafi, L Matteini, J Squire, ST Badman… - Space Science …, 2023 - Springer
Abstract Launched on 12 Aug. 2018, NASA's Parker Solar Probe had completed 13 of its
scheduled 24 orbits around the Sun by Nov. 2022. The mission's primary science goal is to …

The Imprint of Intermittent Interchange Reconnection on the Solar Wind

PF Wyper, CR DeVore, SK Antiochos… - The Astrophysical …, 2022 - iopscience.iop.org
The solar wind is known to be highly structured in space and time. Observations from Parker
Solar Probe have revealed an abundance of so-called magnetic switchbacks within the near …

Alfvénic fluctuations in the expanding solar wind: Formation and radial evolution of spherical polarization

L Matteini, A Tenerani, S Landi, A Verdini, M Velli… - Physics of …, 2024 - pubs.aip.org
We investigate properties of large-scale solar wind Alfvénic fluctuations and their evolution
during radial expansion. We assume a strictly radial background magnetic field B∥ R⁠, and …

Pressure anisotropy and viscous heating in weakly collisional plasma turbulence

J Squire, MW Kunz, L Arzamasskiy… - Journal of Plasma …, 2023 - cambridge.org
Pressure anisotropy can strongly influence the dynamics of weakly collisional, high-beta
plasmas, but its effects are missed by standard magnetohydrodynamics (MHD). Small …

Propagation of untwisting solar jets from the low-beta corona into the super-Alfvénic wind: Testing a solar origin scenario for switchbacks

J Touresse, E Pariat, C Froment, V Aslanyan… - Astronomy & …, 2024 - aanda.org
Context. Parker Solar Probe's (PSP) discovery of the prevalence of switchbacks (SBs),
localised magnetic deflections in the nascent solar wind, has sparked interest in uncovering …

[HTML][HTML] On the properties of Alfvénic switchbacks in the expanding solar wind: The influence of the Parker spiral

J Squire, Z Johnston, A Mallet, R Meyrand - Physics of Plasmas, 2022 - pubs.aip.org
Switchbacks—rapid, large deflections of the solar wind's magnetic field—have generated
interest as possible signatures of the mechanisms that heat the corona and accelerate the …

Reflection-driven turbulence in the super-Alfvénic solar wind

R Meyrand, J Squire, A Mallet… - Journal of Plasma …, 2025 - cambridge.org
In magnetized, stratified environments such as the Sun's corona and solar wind, Alfvénic
fluctuations 'reflect'from background gradients, enabling nonlinear interactions that allow …

Solar Wind Structures from the Gaussianity of Magnetic Magnitude

Z Huang, C Shi, M Velli, N Sioulas… - The Astrophysical …, 2024 - iopscience.iop.org
The heliosphere is permeated with highly structured solar wind originating from the Sun.
One of the primary science objectives of Parker Solar Probe (PSP) is to determine the …

On the construction of general large-amplitude spherically polarised Alfvén waves

J Squire, A Mallet - Journal of Plasma Physics, 2022 - cambridge.org
In a magnetised plasma on scales well above ion kinetic scales, any constant-magnitude
magnetic field, accompanied by parallel Alfvénic flows, forms a nonlinear solution in an …

Magnetic reconnection as an erosion mechanism for magnetic switchbacks

GHH Suen, CJ Owen, D Verscharen… - Astronomy & …, 2023 - aanda.org
Context. Magnetic switchbacks are localised polarity reversals in the radial component of the
heliospheric magnetic field. Observations from Parker Solar Probe (PSP) have shown that …