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 …

In situ observations of large-amplitude Alfvén waves heating and accelerating the solar wind

YJ Rivera, ST Badman, ML Stevens, JL Verniero… - Science, 2024 - science.org
After leaving the Sun's corona, the solar wind continues to accelerate and cools, but more
slowly than expected for a freely expanding adiabatic gas. Alfvén waves are perturbations of …

Occurrence and evolution of switchbacks in the inner heliosphere: Parker solar probe observations

VK Jagarlamudi, NE Raouafi… - The Astrophysical …, 2023 - iopscience.iop.org
Since its launch in 2018, the Parker Solar Probe (PSP) mission revealed the presence of
numerous fascinating phenomena occurring closer to the Sun, such as the presence of …

Properties of steady sub-Alfvénic solar wind in comparison with super-Alfvénic wind from parker solar probe measurements

Y Jiao, YD Liu, H Ran, W Cheng - The Astrophysical Journal, 2023 - iopscience.iop.org
We identify more than 10 steady sub-Alfvénic solar wind intervals from the measurements of
the Parker Solar Probe (PSP) from encounter 8 to encounter 14. An analysis of these sub …

Patches of magnetic switchbacks and their origins

C Shi, O Panasenco, M Velli, A Tenerani… - The Astrophysical …, 2022 - iopscience.iop.org
Abstract Parker Solar Probe (PSP) has shown that the solar wind in the inner heliosphere is
characterized by the quasi omnipresence of magnetic switchbacks (" switchback" …

Multifluid simulations of upper-chromospheric magnetic reconnection with Helium–Hydrogen mixture

QM Wargnier, J Martinez-Sykora… - The Astrophysical …, 2023 - iopscience.iop.org
Our understanding of magnetic reconnection (MR) under chromospheric conditions remains
limited. Recent observations have demonstrated the important role of ion–neutral …

The impact of multifluid effects in the solar chromosphere on the ponderomotive force under SE and NEQ ionization conditions

J Martínez-Sykora, B De Pontieu… - The Astrophysical …, 2023 - iopscience.iop.org
The ponderomotive force has been suggested to be the main mechanism to produce the so-
called first ionization potential (FIP) effect—the enrichment of low-FIP elements observed in …

Proton-and Alpha-driven Instabilities in an Ion Cyclotron Wave Event

MD McManus, KG Klein, SD Bale… - The Astrophysical …, 2024 - iopscience.iop.org
Ion-scale wave events or wave storms in the solar wind are characterized by enhancements
in magnetic field fluctuations as well as coherent magnetic field polarization signatures at or …

Density and velocity fluctuations of alpha particles in magnetic switchbacks

MD McManus, J Verniero, SD Bale… - The Astrophysical …, 2022 - iopscience.iop.org
Magnetic switchbacks, or sudden reversals in the magnetic field's radial direction, are one of
the more striking observations of the Parker Solar Probe (PSP) in its mission thus far. While …

Analytic Model and Magnetohydrodynamic Simulations of Three-dimensional Magnetic Switchbacks

C Shi, M Velli, G Toth, K Zhang… - The Astrophysical …, 2024 - iopscience.iop.org
Abstract Parker Solar Probe observations reveal that the near-Sun space is almost filled with
magnetic switchbacks (" switchbacks" hereinafter), which may be a major contributor to the …