141 citations · 2.6k across the 78 of their papers we have counts for
78 papers
Local Interstellar Flow Parameters from the First Intersection of IMAP-Lo's Parameter Tubes
Nathan A. Schwadron, Mitchell M. Shen, Fatemeh Rahmanifard +24
The Sun's motion through the interstellar medium creates a flow of interstellar neutral (ISN) atoms through the heliosphere. ISN He, due to its high universal abundance and relativ…
Energetic Particle Acceleration and Transport: Interplanetary Coronal Mass Ejections and Shocks
Olga E. Malandraki, Christina M. S. Cohen, Joe Giacalone +16
Solar Energetic Particles from suprathermal (few keV) up to relativistic (few GeV) energies constitute an important contributor to the characterization of the space environment. Em…
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…
Parker Solar Probe observations of solar energetic particle (SEP) events with inverse velocity arrival (IVA) features
Zigong Xu, C. M. S. Cohen, R. A. Leske +21
In SEP events, velocity dispersion (VD) is characterized by the earlier arrival of faster, higher-energy particles relative to slower ones, assuming negligible acceleration time an…
Energy-dependent SEP Fe/O abundances during the May 2024 superstorm
G. D. Muro, C. M. S. Cohen, Z. Xu +16
During mid-May 2024, active region (AR) 13664 produced a series of M- and X-class flares along with several coronal mass ejections (CMEs) that resulted in exceptionally strong auro…
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…
Diverse dust populations in the near-Sun environment characterized by PSP/ISIS
M. M. Shen, J. R. Szalay, P. Pokorný +9
The Integrated Science Investigation of the Sun (ISIS) energetic particle instrument suite on Parker Solar Probe is dedicated to measuring energetic ions and electrons in th…
Composition variation of the May 16 2023 Solar Energetic Particle Event observed by Solar Orbiter and Parker Solar Probe
Z. G. Xu, C. M. S Cohen, R. A. Leske +13
In this study, we employ the combined charged particle measurements from Integrated Science Investigation of the Sun (\ISOIS) onboard the Parker Solar Probe (PSP) and Energetic Par…
Magnetic reconnection-driven energization of protons up to 400 keV at the near-Sun heliospheric current sheet
M. I. Desai, J. F. Drake, T. Phan +22
We report observations of direct evidence of energetic protons being accelerated above ~400 keV within the reconnection exhaust of a heliospheric current sheet (HCS) crossing by NA…
Energetic Particles from Quasi-Separatrix Layers and Current Sheets at the Sun
Nathan A. Schwadron, Ronald M. Caplan, Jon A. Linker +2
Quasi-separatrix layers (QSLs) at the Sun are created from regions where channels of open magnetic flux have footpoints near regions of large-scale closed magnetic flux. These regi…
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…
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…
Science Opportunities for IMAP-Lo Observations of Interstellar Neutral Hydrogen and Deuterium During a Maximum of Solar Activity
Marzena A. Kubiak, Maciej Bzowski, Eberhard Moebius +1
Direct-sampling observations of interstellar neutral gas, including hydrogen and deuterium, have been performed for more than one cycle of solar activity by IBEX. IBEX viewing is r…
Correlation of Coronal Mass Ejection Shock Temperature with Solar Energetic Particle Intensity
Manuel Enrique Cuesta, D. J. McComas, L. Y. Khoo +13
Solar energetic particle (SEP) events have been observed by the Parker Solar Probe (PSP) spacecraft since its launch in 2018. These events include sources from solar flares and cor…
Science Opportunities for IMAP-Lo Observations of Interstellar Neutral Helium, Neon and Oxygen During a Maximum of Solar Activity
M. A. Kubiak, M. Bzowski, P. Swaczyna +3
Direct-sampling observations of interstellar neutral (ISN) species and their secondary populations give information about the physical state of the local interstellar medium and pr…
Interstellar Conditions Deduced from Interstellar Neutral Helium Observed by IBEX and Global Heliosphere Modeling
P. Swaczyna, M. Bzowski, J. Heerikhuisen +8
In situ observations of interstellar neutral (ISN) helium atoms by the IBEX-Lo instrument onboard the Interstellar Boundary Explorer (IBEX) mission are used to determine the veloci…
The Effect of Angular Scattering Imposed by Charge Exchange and Elastic Collisions on Interstellar Neutral Hydrogen Atoms
F. Rahmanifard, P. Swaczyna, E. J. Zirnstein +7
Angular scattering in charge exchange and elastic collisions between interstellar ions and neutral (ISN) atoms has been assumed to be negligible in previous studies. Here, we inves…
Relative In-flight Response of IBEX-Lo to Interstellar Neutral Helium Atoms
P. Swaczyna, M. Bzowski, S. A. Fuselier +7
The IBEX-Lo instrument on the Interstellar Boundary Explorer (IBEX) mission measures interstellar neutral (ISN) helium atoms. The detection of helium atoms is made through negative…
Determining the ionization rates of interstellar neutral species using direct-sampling observations of their direct and indirect beams
M. Bzowski, M. A. Kubiak, E. Moebius +1
A good understanding of the ionization rates of neutral species in the heliosphere is important for studies of the heliosphere and planetary atmospheres. So far, the intensities of…
Thermodynamics of the inner heliosheath
G. Livadiotis, D. J. McComas, H. O. Funsten +3
We derive annual skymaps of the proton temperature in the inner heliosheath (IHS), and track their temporal evolution over the years from 2009 to 2016 of Interstellar Boundary Expl…
Mixing Interstellar Clouds Surrounding the Sun
Paweł Swaczyna, Nathan A. Schwadron, Eberhard Möbius +9
On its journey through the Galaxy, the Sun passes through diverse regions of the interstellar medium. High-resolution spectroscopic measurements of interstellar absorption lines in…
Breaking correlation in the inflow parameters of interstellar neutral gas in direct-sampling observations
M. Bzowski, M. A. Kubiak, E. Möbius +1
We analyze the reasons for the correlation between the temperature, direction, and speed of the interstellar neutral gas inflow into the heliosphere, obtained in analyzes of observ…
Very Local Interstellar Medium Revealed by Complete Solar Cycle of Interstellar Neutral Helium Observations with IBEX
P. Swaczyna, M. A. Kubiak, M. Bzowski +8
The IBEX-Lo instrument on board the Interstellar Boundary Explorer (IBEX) mission samples interstellar neutral (ISN) helium atoms penetrating the heliosphere from the very local in…
PSP/ISIS Observation of a Solar Energetic Particle Event Associated With a Streamer Blowout Coronal Mass Ejection During Encounter 6
T. Getachew, D. J. McComas, C. J. Joyce +21
In this paper we examine a low-energy SEP event observed by ISIS's Energetic Particle Instrument-Low (EPI-Lo) inside 0.18 AU on September 30, 2020. This small SEP event has…