184 citations · 1.2k across the 43 of their papers we have counts for
44 papers
Evolution and Impact of Switchbacks Throughout the Heliosphere
Alfred Mallet, Chen Shi, Anna Tenerani +23
Magnetic switchbacks are large-amplitude fluctuations in the interplanetary magnetic field, and appear frequently in the near-Sun solar wind explored recently by Parker Solar Probe…
Solar Wind Heating Near the Sun: A Radial Evolution Approach
Yogesh, Leon Ofman, Kristopher Klein +19
Characterizing the plasma state in the near-Sun environment is essential to constrain the mechanisms that heat and accelerate the solar wind. In this study, we use Parker Solar Pro…
Properties of Magnetic Switchbacks in the Near-Sun Solar Wind
Samuel T. Badman, Naïs Fargette, Lorenzo Matteini +24
Magnetic switchbacks are fluctuations in the solar wind in which the interplanetary magnetic field sharply deflects away from its background direction so as to create folds in magn…
Velocity-space turbulent cascade in the near-Sun solar wind: first insights from the Parker Solar Probe mission
A. Larosa, O. Pezzi, T. Bowen +11
In space plasmas, the rarity of collisions leads to complex structures in the velocity space where a turbulent cascade of the velocity distribution function fluctuations is thought…
Switchbacks near Boundaries of Small-scale Magnetic Flux Ropes in the Young Solar Wind from Parker Solar Probe Observations
Kyung-Eun Choi, Oleksiy V. Agapitov, Dae-Young Lee +5
The Parker Solar Probe (PSP) mission has revealed frequent occurrences of switchbacks (SBs) and small-scale magnetic flux ropes (SMFRs) as prominent structures within the solar win…
The evolution of CME sheath turbulence from L1 to Earth: Wind and MMS observations of the 2023-04-23 CME
Matthew R. Argall, Li-Jen Chen, Noé Lugaz +5
An interplanetary shock driven by a coronal mass ejection (CME) containing an interval of sub-Alfvénic flow impacted Earth on April 23, 2024. In this article, we analyze the turbul…
Evidence of Interaction between Ion-Scale Waves and Ion Velocity Distributions in the Solar Wind
Yogesh, Leon Ofman, Scott A Boardsen +9
Recent in situ observations from Parker Solar Probe (PSP) near perihelia reveal ion beams, temperature anisotropies, and kinetic wave activity. These features are likely linked to…
Differentiating the acceleration mechanisms in the slow and Alfvénic slow solar wind
Yeimy J. Rivera, Samuel T. Badman, J. L. Verniero +18
In the corona, plasma is accelerated to hundreds of kilometers per second, and heated to temperatures hundreds of times hotter than the Sun's surface, before it escapes to form the…
In situ observations of large amplitude Alfvén waves heating and accelerating the solar wind
Yeimy J. Rivera, Samuel T. Badman, Michael L. Stevens +16
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. We use in situ measurements fr…
The Incompressible Magnetohydrodynamic Energy Cascade Rate Upstream of Mars: Effects of the Total Energy and the Cross-Helicity on Solar Wind Turbulence
Norberto Romanelli, Nahuel Andres, Gina DiBraccio +5
Solar wind turbulence is a dynamical phenomenon that evolves with heliocentric distance. Orbiting Mars since September 2014, Mars Atmosphere and Volatile EvolutioN (MAVEN) offers a…
Quiescent Solar Wind Regions in the Near-Sun Environment: Properties and Radial Evolution
Benjamin Short, David M. Malaspina, Alexandros Chasapis +1
Regions of magnetic field with near-radial, Parker Spiral-like geometry known as quiescent regions have been observed in Parker Solar Probe data. These regions have very low $δB /…
Near subsonic solar wind outflow from an active region
Tamar Ervin, Stuart D. Bale, Samuel T. Badman +10
During Parker Solar Probe (Parker) Encounter 15 (E15), we observe an 18-hour period of near subsonic ( 1) and sub-Alfvénic (SA), <<< 1, slow speed…
Solar wind data analysis aided by synthetic modeling: a better understanding of plasma-frame variations from temporal data
Norbert Magyar, Jaye Verniero, Adam Szabo +2
In-situ measurements of the solar wind, a turbulent and anisotropic plasma flow originating at the Sun, are mostly carried out by single spacecraft, resulting in one-dimensional ti…
Acceleration of electrons and ions by an "almost" astrophysical shock in the heliosphere
Immanuel Christopher Jebaraj, Oleksiy Agapitov, Vladimir Krasnoselskikh +18
Collisionless shock waves, ubiquitous in the universe, are crucial for particle acceleration in various astrophysical systems. Currently, the heliosphere is the only natural enviro…
Resonance of low-frequency electromagnetic and ion-sound modes in the solar wind
I. Y. Vasko, F. S. Mozer, T. Bowen +6
Parker Solar Probe measurements have recently shown that coherent fast magnetosonic and Alfvén ion-cyclotron waves are abundant in the solar wind and can be accompanied by higher-f…
Frequency Dispersed Ion Acoustic Waves in the Near Sun Solar Wind: Signatures of Impulsive Ion Beams
David M. Malaspina, Robert E. Ergun, Iver H. Cairns +4
This work reports a novel plasma wave observation in the near-Sun solar wind: frequency-dispersed ion acoustic waves. Similar waves were previously reported in association with int…
Proton and Alpha Driven Instabilities in an Ion Cyclotron Wave Event
Michael D. McManus, Kristopher G. Klein, Davin Larson +8
Ion scale wave events or "wave storms" in the solar wind are characterised by enhancements in magnetic field fluctuations as well as coherent magnetic field polarisation signatures…
Ion kinetics of plasma interchange reconnection in the lower solar corona
Vladimir Krasnoselskikh, Arnaud Zaslavsky, Anton Artemyev +6
The exploration of the inner heliosphere by Parker Solar Probe has revealed a highly structured solar wind with ubiquitous deflections from the Parker spiral, known as switchbacks.…
Local proton heating at magnetic discontinuities in Alfvenic and non-Alfvenic solar wind
C. A. Gonzalez, J. L. Verniero, R. Bandyopadhyay +1
We investigate the local proton energization at magnetic discontinuities/intermittent structures and the corresponding kinetic signatures in velocity phase space in Alfvénic and no…
Observations and Modeling of Unstable Proton and Alpha Particle Velocity Distributions in Sub-Alfvenic Solar Wind at PSP Perihelia
Leon Ofman, Scott A Boardsen, Lan K Jian +7
Past observations show that solar wind (SW) acceleration occurs inside the sub-Alfvenic region, reaching the local Alfven speed at typical distances ~ 10 - 20 Rs (solar radii). Rec…
The Temperature, Electron, and Pressure Characteristics of Switchbacks: Parker Solar Probe Observations
Jia Huang, Justin C. Kasper, Davin E. Larson +19
Parker Solar Probe (PSP) observes unexpectedly prevalent switchbacks, which are rapid magnetic field reversals that last from seconds to hours, in the inner heliosphere, posing new…
Arguments for the physical nature of the triggered ion-acoustic waves observed on the Parker Solar Probe
Forrest Mozer, Stuart Bale, Paul Kellogg +3
Triggered ion-acoustic waves are a pair of coupled waves observed in the previously unexplored plasma regime near the Sun. They may be capable of producing important effects on the…
Quantifying the Energy Budget in the Solar Wind from 13.3-100 Solar Radii
J. S. Halekas, S. D. Bale, M. Berthomier +10
A variety of energy sources, ranging from dynamic processes like magnetic reconnection and waves to quasi-steady terms like the plasma pressure, may contribute to the acceleration…
Prediction and Verification of Parker Solar Probe Solar Wind Sources at 13.3 R
Samuel T. Badman, Pete Riley, Shaela I. Jones +11
Drawing connections between heliospheric spacecraft and solar wind sources is a vital step in understanding the evolution of the solar corona into the solar wind and contextualizin…