166 citations · 453 across the 14 of their papers we have counts for
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Three dimensional He+ pickup ion velocity distribution functions observed with STEREO-A PLASTIC
Duncan Keilbach, Verena Heidrich-Meisner, Lars Berger +1
Freshly injected interstellar Pickup Ions (PUIs) are expected to exhibit a simple, torus-shaped velocity distribution function. The PUI velocity in the solar wind frame depends on…
Challenges in identifying the coronal hole wind
Verena Heidrich-Meisner, Sophie Teichmann, Lars Berger +1
Solar wind is frequently categorized based on its respective solar source region. Two well-established categorizations of the coronal hole wind, the scheme based on the charge-stat…
Scope and limitations of ad hoc neural network reconstructions of solar wind parameters
Maximilian Hecht, Verena Heidrich-Meisner, Lars Berger +1
Solar wind properties are determined by the conditions of their solar source region and transport history. Solar wind parameters, such as proton speed, proton density, proton tempe…
In-situ Measurement of the Energy Fraction in Supra-thermal and Energetic Particles at ACE, Wind, and PSP Interplanetary Shocks
Liam David, Federico Fraschetti, Joe Giacalone +3
The acceleration of charged particles by interplanetary shocks (IPs) can drain a non-negligible fraction of the plasma pressure. In this study, we have selected 17 IPs observed in-…
The Long Period of 3He-rich Solar Energetic Particles Measured by Solar Orbiter on 2020 November 17-23
R. Bucik, G. M. Mason, R. Gomez-Herrero +31
We report observations of a relatively long period of 3He-rich solar energetic particles (SEPs) measured by Solar Orbiter. The period consists of several well-resolved ion injectio…
First year of energetic particle measurements in the inner heliosphere with Solar Orbiter's Energetic Particle Detector
R. F. Wimmer-Schweingruber, N. Janitzek, D. Pacheco +45
Solar Orbiter strives to unveil how the Sun controls and shapes the heliosphere and fills it with energetic particle radiation. To this end, its Energetic Particle Detector (EPD) h…
Radial Evolution of the April 2020 Stealth Coronal Mass Ejection between 0.8 and 1 AU -- A Comparison of Forbush Decreases at Solar Orbiter and Earth
Johan L. Freiherr von Forstner, Mateja Dumbović, Christian Möstl +40
Aims. We present observations of the first coronal mass ejection (CME) observed at the Solar Orbiter spacecraft on April 19, 2020, and the associated Forbush decrease (FD) measured…
Proton-proton collisional age to order solar wind types
Verena Heidrich-Meisner, Lars Berger, Robert F. Wimmer-Schweingruber
The properties of a solar wind stream are determined by its source region and by transport effects. Independently of the solar wind type, the solar wind measured in situ is always…
Disparity among low first ionization potential elements
Verena Heidrich-Meisner, Lars Berger, Robert F. Wimmer-Schweingruber
The elemental composition of the solar wind differs from the solar photospheric composition. Elements with low first ionization potential (FIP) appear enhanced compared to O in the…