Publications (30)
Time domain structures and dust in the solar vicinity: Parker Solar Probe observations
F. S. Mozer, O. V. Agapitov, S. D. Bale +9
On April 5, 2019, while the Parker Solar Probe was at its 35 solar radius perihelion, the data set collected at 293 samples/sec contained more than 10,000 examples of spiky electri…
Detection of small magnetic flux ropes from the third and fourth Parker Solar Probe encounters
L. -L. Zhao, G. P. Zank, Q. Hu +22
We systematically search for magnetic flux rope structures in the solar wind to within the closest distance to the Sun of 0.13 AU, using data from the third and fourth orbits of th…
Dust detection by the wave instrument on STEREO: nanoparticles picked up by the solar wind?
N. Meyer-Vernet, M. Maksimovic, A. Czechowski +7
The STEREO/WAVES instrument has detected a very large number of intense voltage pulses. We suggest that these events are produced by impact ionisation of nanoparticles striking the…
Identification of Magnetic Flux Ropes from Parker Solar Probe Observations during the First Encounter
L. -L. Zhao, G. P. Zank, L. Adhikari +17
The Parker Solar Probe (PSP) observed an interplanetary coronal mass ejection (ICME) event during its first orbit around the sun, among many other events. This event is analyzed by…
A statistical study of the properties of large amplitude whistler waves and their association with few eV to 30 keV electron distributions observed in the magnetosphere by Wind
L. B. Wilson, C. A. Cattell, P. J. Kellogg +4
We present a statistical study of the characteristics of very large amplitude whistler waves inside the terrestrial magnetosphere using waveform capture data from the Wind spacecra…
Solar wind energy flux observations in the inner heliosphere: First results from Parker Solar Probe
M. Liu, K. Issautier, N. Meyer-Vernet +15
We investigate the solar wind energy flux in the inner heliosphere using 12-day observations around each perihelion of Encounter One (E01), Two (E02), Four (E04), and Five (E05) of…
Observations of heating along intermittent structures in the inner heliosphere from PSP data
R. A. Qudsi, B. A. Maruca, W. H. Matthaeus +22
The solar wind proton temperature at 1-au has been found to be correlated with small-scale intermittent magnetic structures, i.e., regions with enhanced temperature are associated…
Narrowband oblique whistler-mode waves: Comparing properties observed by Parker Solar Probe at <0.2 AU and STEREO at 1 AU
C. Cattell, B. Short, A. Breneman +15
AIM: Large amplitude narrowband obliquely propagating whistler-mode waves at frequencies of ~0.2 fce (electron cyclotron frequency) are commonly observed at 1 AU, and are most cons…
Seed Population Pre-Conditioning and Acceleration Observed by Parker Solar Probe
N. A. Schwadron, S. Bale, J. Bonnell +42
A series of solar energetic particle (SEP) events were observed at Parker Solar Probe (PSP) by the Integrated Science Investigation of the Sun (\ISOIS) during the period from April…
Predicting the Solar Wind at Parker Solar Probe Using an Empirically Driven MHD Model
T. K. Kim, N. V. Pogorelov, C. N. Arge +20
Since the launch on 2018/08/12, Parker Solar Probe (PSP) has completed its first and second orbits around the Sun, having reached down to 35.7 solar radii at each perihelion. In an…
Parker Solar Probe observations of proton beams simultaneous with ion-scale waves
J. L. Verniero, D. E. Larson, R. Livi +19
Parker Solar Probe (PSP), NASA's latest and closest mission to the Sun, is on a journey to investigate fundamental enigmas of the inner heliosphere. This paper reports initial obse…
Observation of relativistic electron microbursts in conjunction with intense radiation belt whistler-mode waves
K. Kersten, C. A. Cattell, A. Breneman +7
We present multi-satellite observations indicating a strong correlation between large amplitude radiation belt whistler-mode waves and relativistic electron precipitation. On separ…
Electromagnetic waves and electron anisotropies downstream of supercritical interplanetary shocks
L. B. Wilson, A. Koval, A. Szabo +8
We present waveform observations of electromagnetic lower hybrid and whistler waves with f_ci << f < f_ce downstream of four supercritical interplanetary (IP) shocks using the Wind…
Electrons in the Young Solar Wind: First Results from the Parker Solar Probe
J. S. Halekas, P. Whittlesey, D. E. Larson +14
The Solar Wind Electrons Alphas and Protons experiment on the Parker Solar Probe (PSP) mission measures the three-dimensional electron velocity distribution function. We derive the…
Clustering of Intermittent Magnetic and Flow Structures near Parker Solar Probe's First Perihelion -- A Partial-Variance-of-Increments Analysis
Rohit Chhiber, M. Goldstein, B. Maruca +23
During the Parker Solar Probe's (PSP) first perihelion pass, the spacecraft reached within a heliocentric distance of \(\sim 37~R_\odot\) and observed numerous magnetic and flow st…
Magnetic field spectral evolution in the inner heliosphere
Nikos Sioulas, Zesen Huang, Chen Shi +23
Parker Solar Probe and Solar Orbiter data are used to investigate the radial evolution of magnetic turbulence between au. The spectrum is studied as…
Collisional Evolution of the Inner Zodiacal Cloud
J. R. Szalay, P. Pokorny, D. M. Malaspina +9
The zodiacal cloud is one of the largest structures in the solar system and strongly governed by meteoroid collisions near the Sun. Collisional erosion occurs throughout the zodiac…
Parker Solar Probe In-Situ Observations of Magnetic Reconnection Exhausts During Encounter 1
T. D. Phan, S. D. Bale, J. P. Eastwood +23
Magnetic reconnection in current sheets converts magnetic energy into particle energy. The process may play an important role in the acceleration and heating of the solar wind clos…
Sunward propagating whistler waves collocated with localized magnetic field holes in the solar wind: Parker Solar Probe observations at 35.7 Sun radii
O. V. Agapitov, T. Dudok de Wit, F. S. Mozer +21
Observations by the Parker Solar Probe mission of the solar wind at about 35.7 solar radii reveal the existence of whistler wave packets with frequencies below 0.1 f/fce (20-80 Hz…
Parker Solar Probe evidence for the absence of whistlers close to the Sun to scatter strahl and regulate heat flux
C. Cattell, A. Breneman, J. Dombeck +14
Using the Parker Solar Probe FIELDS bandpass filter data and SWEAP electron data from Encounters 1 through 9, we show statistical properties of narrowband whistlers from ~16 Rs to…
Direct evidence for magnetic reconnection at the boundaries of magnetic switchbacks with Parker Solar Probe
C. Froment, V. Krasnoselskikh, T. Dudok de Wit +20
Parker Solar Probe's first encounters with the Sun revealed the presence of ubiquitous localised magnetic deflections in the inner heliosphere; these structures, often called switc…
Localized magnetic field structures and their boundaries in the near-Sun solar wind from Parker Solar Probe measurements
V. Krasnoselskikh, A. Larosa, O. Agapitov +18
One of the discoveries made by Parker Solar Probe during first encounters with the Sun is the ubiquitous presence of relatively small-scale structures standing out as sudden deflec…
Dust impact voltage signatures on Parker Solar Probe: influence of spacecraft floating potential
S. D. Bale, K. Goetz, J. W. Bonnell +15
When a fast dust particle hits a spacecraft, it generates a cloud of plasma some of which escapes into space and the momentary charge imbalance perturbs the spacecraft voltage with…
Switchbacks: statistical properties and deviations from alfvénicity
A. Larosa, V. Krasnoselskikh, T. Dudok de Witınst +16
{Parker Solar Probe's first solar encounter has revealed the presence of sudden magnetic field deflections that are called switchbacks and are associated with proton velocity enhan…
The Near-Sun Dust Environment: Initial Observations from Parker Solar Probe
J. R. Szalay, P. Pokorný, S. D. Bale +11
The Parker Solar Probe (PSP) spacecraft has flown into the most dense and previously unexplored region of our solar system's zodiacal cloud. While PSP does not have a dedicated dus…
The Evolution and Role of Solar Wind Turbulence in the Inner Heliosphere
C. H. K. Chen, S. D. Bale, J. W. Bonnell +21
The first two orbits of the Parker Solar Probe (PSP) spacecraft have enabled the first in situ measurements of the solar wind down to a heliocentric distance of 0.17 au (or 36 Rs).…
Measures of Scale Dependent Alfvénicity in the First PSP Solar Encounter
T. N. Parashar, M. L. Goldstein, B. A. Maruca +25
The solar wind shows periods of highly Alfvénic activity, where velocity fluctuations and magnetic fluctuations are aligned or anti-aligned with each other. It is generally agreed…
Sub-Alfvenic Solar Wind observed by PSP: Characterization of Turbulence, Anisotropy, Intermittency, and Switchback
R. Bandyopadhyay, W. H. Matthaeus, D. J. McComas +18
In the lower solar coronal regions where the magnetic field is dominant, the Alfven speed is much higher than the wind speed. In contrast, the near-Earth solar wind is strongly sup…
Parker Solar Probe Observations of Energetic Particles in the Flank of a Coronal Mass Ejection Close to the Sun
N. A. Schwadron, Stuart D. Bale, J. Bonnell +32
We present an event observed by Parker Solar Probe at 0.2 au on March 2, 2022 in which imaging and \emph{in situ} measurements coincide. During this event, PSP passed through…
On the Brightness and Waiting-time Distributions of a Type III Radio Storm observed by STEREO/WAVES
J. P. Eastwood, M. S. Wheatland, H. S. Hudson +5
Type III solar radio storms, observed at frequencies below approximately 16 MHz by space borne radio experiments, correspond to the quasi-continuous, bursty emission of electron be…