85 citations · 451 across the 15 of their papers we have counts for
14 papers
Radial evolution of thermal and suprathermal electron populations in the slow solar wind from 0.13 to 0.5 au : Parker Solar Probe Observations
Joel B. Abraham, Christopher J Owen, Daniel Verscharen +8
We develop and apply a bespoke fitting routine to a large volume of solar wind electron distribution data measured by Parker Solar Probe (PSP) over its first five orbits, covering…
The Stability of the Electron Strahl against the Oblique Fast-magnetosonic/Whistler Instability in the Inner Heliosphere
Seong-Yeop Jeong, Joel B. Abraham, Daniel Verscharen +8
We analyze the micro-kinetic stability of the electron strahl in the solar wind depending on heliocentric distance. The oblique fast-magnetosonic/whistler (FM/W) instability has em…
The Kinetic Expansion of Solar-Wind Electrons: Transport Theory and Predictions for the very Inner Heliosphere
Seong-Yeop Jeong, Daniel Verscharen, Christian Vocks +9
We propose a transport theory for the kinetic evolution of solar-wind electrons in the heliosphere. We derive a gyro-averaged kinetic transport equation that accounts for the spher…
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…
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…
Whistler wave occurrence and the interaction with strahl electrons during the first encounter of Parker Solar Probe
V. K. Jagarlamudi, T. Dudok de Wit, C. Froment +16
We studied the properties and occurrence of narrow band whistler waves and their interaction with strahl electrons observed between 0.17 and 0.26 au during the first encounter of P…
Parker Solar Probe Observations of Suprathermal Electron Flux Enhancements Originating from Coronal Hole Boundaries
Allan R Macneil, Mathew J Owens, Laura Berčič +1
Reconnection between pairs of solar magnetic flux elements, one open and the other a closed loop, is theorised to be a crucial process for both maintaining the structure of the cor…
Whistler Waves and Electron Properties in the Inner Heliosphere: Helios Observations
Vamsee Krishna Jagarlamudi, Olga Alexandrova, Laura Bercic +4
We present the analysis of narrowband whistler wave signatures observed in the inner heliosphere (0.3-1 au). These signatures are bumps in the spectral density in the 10-200 Hz fre…
Resonant whistler-electron interactions: MMS observations vs. test-particle simulation
Etienne Behar, Fouad Sahraoui, Laura Bercic
Simultaneous observation of characteristic 3-dimensional (3D) signatures in the electron velocity distribution function (VDF) and intense quasi-monochromatic waves by the Magnetosp…
Coronal Electron Temperature inferred from the Strahl Electrons in the Inner Heliosphere: Parker Solar Probe and Helios observations
Laura Bercic, Davin Larson, Phyllis Whittlesey +17
The shape of the electron velocity distribution function plays an important role in the dynamics of the solar wind acceleration. Electrons are normally modelled with three componen…
Plasma Waves near the Electron Cyclotron Frequency in the near-Sun Solar Wind
David M. Malaspina, Jasper Halekas, Laura Bercic +17
Data from the first two orbits of the Sun by Parker Solar Probe reveal that the solar wind sunward of 50 solar radii is replete with plasma waves and instabilities. One of the most…
The origin of slow Alfvénic solar wind at solar minimum
D. Stansby, L. Matteini, T. S. Horbury +3
Although the origins of slow solar wind are unclear, there is increasing evidence that at least some of it is released in a steady state on over-expanded coronal hole magnetic fiel…
Scattering of Strahl Electrons in the Solar Wind between 0.3 and 1 au: Helios Observations
L. Bercic, M. Maksimovic, S. Landi +1
Electron velocity distribution functions in the solar wind according to standard models consist of 4 components, of which 3 are symmetric - the core, the halo, and the superhalo, a…
The root of a comet tail - Rosetta ion observations at comet 67P/Churyumov--Gerasimenko
E. Behar, H. Nilsson, P. Henri +7
The first 1000 km of the ion tail of comet 67P/Churyumov-Gerasimenko were explored by the European Rosetta spacecraft, 2.7 au away from the Sun. We characterised the dynamics of bo…