102 citations · 340 across the 22 of their papers we have counts for
14 papers · 1 filter
Review of Machine Learning Models for Solar Energetic Particle Prediction
Spiridon Kasapis, Pouya Hosseinzadeh, Kathryn Whitman +73
Solar energetic particle (SEP) events have attracted increasing attention due to their significant radiation hazards for aviation, spacecraft electronics, and human missions beyond…
Shock properties for solar energetic particle events with signatures of inverse velocity arrival
A. Kouloumvakos, D. Lario, G. M. Mason +20
We present a detailed investigation of the shock properties associated with solar energetic particle (SEP) events that exhibit a concave (``nose-like'') shape in their energy spect…
Intermittency in Voyager Magnetic Field Beyond the Heliosphere
L. Y. Khoo, G. Livadiotis, D. J. McComas +2
As the two Voyager spacecraft traveled beyond the heliosphere, they encountered a magnetic field environment that had never been observed before. Studies have attempted to characte…
Transfer of Entropy between the Magnetic Field and Solar Energetic Particles during an Interplanetary Coronal Mass Ejection
M. E. Cuesta, G. Livadiotis, D. J. McComas +4
Thermodynamics of solar wind bulk plasma have been routinely measured and quantified, unlike those of solar energetic particles (SEPs), whose thermodynamic properties have remained…
Radial dependence of ion fluences in the 2023 July 17 SEP event from Parker Solar Probe to STEREO and ACE
G. D. Muro, C. M. S Cohen, Z. Xu +18
In the latter moments of 17 July 2023, the solar active region 13363, near the southwestern face of the Sun, was undergoing considerable evolution, which resulted in a significant…
IBEX Observations of Elastic Scattering of Interstellar Helium by Solar Wind Particles
H. Islam, N. Schwadron, E. Moebius +8
The IBEX-Lo instrument on the Interstellar Boundary Explorer (IBEX) mission observes primary and secondary interstellar helium in its 4 lowest energy steps. Observations of these h…
Observations of Kappa Distributions in Solar Energetic Protons and Derived Thermodynamic Properties
M. E. Cuesta, A. T. Cummings, G. Livadiotis +13
In this paper we model the high-energy tail of observed solar energetic proton energy distributions with a kappa distribution function. We employ a technique for deriving the therm…
Kappa-tail technique: Modeling and application to Solar Energetic Particles observed by Parker Solar Probe
G. Livadiotis, A. T. Cummings, M. E. Cuesta +10
We develop the kappa-tail fitting technique, which analyzes observations of power-law tails of distributions and energy-flux spectra and connects them to theoretical modeling of ka…
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…
The Sun's Alfven Surface: Recent Insights and Prospects for the Polarimeter to Unify the Corona and Heliosphere (PUNCH)
Steven R. Cranmer, Rohit Chhiber, Chris R. Gilly +7
The solar wind is the extension of the Sun's hot and ionized corona, and it exists in a state of continuous expansion into interplanetary space. The radial distance at which the wi…
Anomalous Cosmic Ray Oxygen Observations in to 0.1 au
Jamie S. Rankin, David J. McComas, Richard A. Leske +10
The Integrated Science Investigation of the Sun instrument suite onboard NASA's Parker Solar Probe mission continues to measure solar energetic particles and cosmic rays closer to…
Interstellar neutral helium in the heliosphere from IBEX observations. VI. The He density and the ionization state in the Very Local Interstellar Matter
M. Bzowski, A. Czechowski, P. C. Frisch +14
Interstellar neutral gas atoms penetrate the heliopause and reach 1~au, where they are detected by IBEX. The flow of neutral interstellar helium through the perturbed interstellar…
Turbulence in the Local Interstellar Medium and the IBEX Ribbon
E. J. Zirnstein, J. Giacalone, R. Kumar +3
The effects of turbulence in the very local interstellar medium (VLISM) have been proposed by Giacalone & Jokipii (2015) to be important in determining the structure of the Interst…
Is Voyager 1 Inside an Interstellar Flux Transfer Event?
N. A. Schwadron, D. J. McComas
Plasma wave observations from Voyager 1 have recently shown large increases in plasma density, to about 0.1 cm^{-3}, consistent with the density of the local interstellar medium. H…