activity
20172026
most citedMagnetic connectivity of the ecliptic plane within 0.5 AU : PFSS modeling of the first PSP encounter

161 citations · 1.4k across the 37 of their papers we have counts for

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28 papers · 1 filter

astro-ph.SR2025

In situ Evidence of 5-minute Oscillations from Parker Solar Probe

Zesen Huang, Marco Velli, Olga Panasenco +19

The Sun's surface vibrates in characteristic 5-minute oscillations, known as p-modes, generated by sound waves trapped within the convection zone. Although these oscillations have…

astro-ph.SR2025★ 5 cited

Formation of Magnetic Switchbacks via expanding Alfvén Waves

Trevor A. Bowen, Alfred Mallet, Corina I. Dunn +8

Context. Large-amplitude inversions of the solar wind's interplanetary magnetic field have long been documented; however, observations from the Parker Solar Probe (PSP) mission hav…

astro-ph.SR2025★ 3 cited

Electron Beam Propagation and Radio-Wave Scattering in the Inner Heliosphere using Five Spacecraft

Luis Alberto Cañizares, Sam T. Badman, Nicolina Chrysaphi +4

Solar energetic particles such as electrons can be accelerated to mildly-relativistic velocities in the solar corona. These electrons travel through the turbulent corona generating…

astro-ph.SR2025

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…

astro-ph.SR2024

Characteristics and Source Regions of Slow Alfvenic Solar Wind Observed by Parker Solar Probe

Tamar Ervin, Kai Jaffarove, Samuel T. Badman +3

Using a classification scheme for solar wind type based on the heliocentric distance of the observation, we look at near perihelion observations from Parker Solar Probe Encounters…

astro-ph.SR2024★ 11 cited

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…

astro-ph.SR2024★ 4 cited

Tracking solar radio bursts using Bayesian multilateration

L. A. Cañizares, S. T. Badman, S. A. Maloney +4

Solar radio bursts (SRBs), are emitted by electrons propagating through the corona and interplanetary space. Tracking such bursts is key to understanding the properties of accelera…

astro-ph.SR2023★ 17 cited

Compositional metrics of fast and slow Alfvenic solar wind emerging from coronal holes and their boundaries

Tamar Ervin, Stuart D. Bale, Samuel T. Badman +7

We seek to understand the composition and variability of fast (FSW) and slow Alfvenic solar wind (SASW) emerging from coronal holes (CH). We leverage an opportune conjunction betwe…

astro-ph.SR2023★ 8 cited

Effect of Spherical Polarization on the Magnetic Spectrum of the Solar Wind

Corina Dunn, Trevor Bowen, Alfred Mallet +2

Magnetic fluctuations in the solar wind are often observed to maintain constant magnitude of the magnetic field in a manner consistent with spherically-polarized large-amplitude Al…

astro-ph.SR2023★ 44 cited

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…

astro-ph.SR2023★ 26 cited

The Evolution of the 1/f Range Within a Single Fast-Solar-Wind Stream Between 17.4 and 45.7 Solar Radii

Nooshin Davis, B. D. G. Chandran, T. A. Bowen +7

The power spectrum of magnetic-field fluctuations in the fast solar wind ($V_{\rm SW}> 500 \mbox{ km} \mbox{ s}^{-1}$) at magnetohydrodynamic (MHD) scales is characterized by two d…

astro-ph.SR2023★ 158 cited

Parker Solar Probe: Four Years of Discoveries at Solar Cycle Minimum

N. E. Raouafi, L. Matteini, J. Squire +54

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 determine the…

astro-ph.SR2022★ 115 cited

Interchange reconnection as the source of the fast solar wind within coronal holes

S. D. Bale, J. F. Drake, M. D. McManus +13

The fast solar wind that fills the heliosphere originates from deep within regions of open magnetic field on the Sun called coronal holes. The energy source responsible for acceler…

astro-ph.SR2022★ 22 cited

Tracking a beam of electrons from the low solar corona into interplanetary space with the Low Frequency Array, Parker Solar Probe and 1 au spacecraft

Samuel T. Badman, Eoin P. Carley, Luis Alberto Cañizares +7

Type III radio bursts are the result of plasma emission from mildly relativistic electron beams propagating from the low solar corona into the heliosphere where they can eventually…

astro-ph.SR2022★ 30 cited

Constraining Global Coronal Models with Multiple Independent Observables

Samuel T. Badman, David H. Brooks, Nicolas Poirier +13

Global coronal models seek to produce an accurate physical representation of the Sun's atmosphere which can be used, for example, to drive space weather models. Assessing their acc…

astro-ph.SR2021★ 58 cited

Strong perpendicular velocity-space in proton beams observed by Parker Solar Probe

J. L. Verniero, B. D. G. Chandran, D. E. Larson +16

The SWEAP instrument suite on Parker Solar Probe (PSP) has detected numerous proton beams associated with coherent, circularly polarized, ion-scale waves observed by PSP's FIELDS i…

astro-ph.SR2021★ 117 cited

A solar source of Alfvénic magnetic field switchbacks: {\em in situ} remnants of magnetic funnels on supergranulation scales

S. D. Bale, T. S. Horbury, M. Velli +17

One of the striking observations from the Parker Solar Probe (PSP) spacecraft is the prevalence in the inner heliosphere of large amplitude, Alfvénic magnetic field reversals terme…

astro-ph.SR2021

Ambipolar electric field and potential in the solar wind estimated from electron velocity distribution functions

Laura Bercic, Milan Maksimovic, Jasper S. Halekas +17

The solar wind escapes from the solar corona and is accelerated, over a short distance, to its terminal velocity. The energy balance associated with this acceleration remains poorl…

astro-ph.SR2021

Plasma Properties, Switchback Patches and Low -Particle Abundance in Slow Alfvénic Coronal Hole Wind at 0.13 au

Thomas Woolley, Lorenzo Matteini, Michael D. McManus +8

The Parker Solar Probe (PSP) mission presents a unique opportunity to study the near-Sun solar wind closer than any previous spacecraft. During its fourth and fifth solar encounter…

astro-ph.SR2021★ 24 cited

The active region source of a type III radio storm observed by Parker Solar Probe during Encounter 2

L. Harra, D. H. Brooks, S. D. Bale +6

Context. To investigate the source of a type III radio burst storm during encounter 2 of NASA's Parker Solar Probe (PSP) mission. Aims. It was observed that in encounter 2 of NASA'…

astro-ph.SR2020★ 127 cited

Switchbacks as signatures of magnetic flux ropes generated by interchange reconnection in the corona

J. F. Drake, O. Agapitov, M. Swisdak +10

The structure of magnetic flux ropes injected into the solar wind during reconnection in the coronal atmosphere is explored with particle-in-cell simulations and compared with in s…

astro-ph.SR2020★ 17 cited

Periodicities in an active region correlated with Type III radio bursts observed by Parker Solar Probe

Cynthia Cattell, Lindsay Glesener, Benjamin Leiran +5

Context. Periodicities have frequently been reported across many wavelengths in the solar corona. Correlated periods of ~5 minutes, comparable to solar p-modes, are suggestive of c…

astro-ph.SR2020★ 11 cited

Sensitivity of solar wind mass flux to coronal temperature

D. Stansby, L. Berčič, L. Matteini +4

Solar wind models predict that the mass flux carried away from the Sun in the solar wind should be extremely sensitive to the temperature in the corona, where the solar wind is acc…

astro-ph.SR2020★ 41 cited

Measurement of the Open Magnetic Flux in the Inner Heliosphere down to 0.13AU

Samuel T. Badman, Stuart D. Bale, Alexis P. Rouillard +7

(Abridged) Aim: We attempt to determine robust estimates of the heliospheric magnetic flux () using Parker Solar Probe (PSP) data, analyze how susceptible this is to overestim…