331 citations · 2.4k across the 59 of their papers we have counts for
10 papers · 1 filter
On the anisotropic velocity distribution of newborn pickup ions in the heliosheath
Senbei Du, Merav Opher, Marc Kornbleuth
The evolution of the velocity distribution of pickup ions is crucial for understanding the energetic neutral atom (ENA) fluxes observed by Interstellar Boundary Explorer (IBEX). Pi…
Turbulence, Waves, and Taylor's Hypothesis for Heliosheath Observations
L. -L. Zhao, G. P. Zank, M. Opher +6
Magnetic field fluctuations measured in the heliosheath by the Voyager spacecraft are often characterized as compressible, as indicated by a strong fluctuating component parallel t…
A kinetic-magnetohydrodynamic model with adaptive mesh refinement for modeling heliosphere neutral-plasma interaction
Yuxi Chen, Gabor Toth, Erick Powell +4
The charge exchange between the interstellar medium (ISM) and the solar wind plasma is crucial for determining the structures of the heliosphere. Since both the neutral-ion and neu…
First comparison of composite 0.52-55 keV ENA spectra observed by IBEX and Cassini/INCA with simulated ENAs inferred by proton hybrid simulations downstream of the termination shock
Matina Gkioulidou, M. Opher, M. Kornbleuth +9
We present a first comparison of Energetic Neutral Atom (ENA) heliosheath measurements, remotely sensed by the Interstellar Boundary Explorer (IBEX) mission and the Ion and Neutral…
Major Scientific Challenges and Opportunities in Understanding Magnetic Reconnection and Related Explosive Phenomena in Solar and Heliospheric Plasmas
H. Ji, J. Karpen, A. Alt +105
Magnetic reconnection underlies many explosive phenomena in the heliosphere and in laboratory plasmas. The new research capabilities in theory/simulations, observations, and labora…
The Solar-wind with Hydrogen Ion Exchange and Large-scale Dynamics (SHIELD) model: A Self-Consistent Kinetic-MHD Model of the Outer Heliosphere
Adam T. Michael, Merav Opher, Gabor Toth +2
Neutral hydrogen has been shown to greatly impact the plasma flow in the heliopshere and the location of the heliospheric boundaries. We present the results of the Solar-wind with…
A Predicted Small and Round Heliosphere
Merav Opher, Abraham Loeb, James Drake +1
The shape of the solar wind bubble within the interstellar medium, the so-called heliosphere, has been explored over six decades. As the Sun moves through the surrounding partially…
The formation of magnetic depletions and flux annihilation due to reconnection in the heliosheath
J. F. Drake, M. Swisdak, M. Opher +1
The misalignment of the solar rotation axis and the magnetic axis of the Sun produces a periodic reversal of the Parker spiral magnetic field and the sectored solar wind. The compr…
Voyager 2 solar plasma and magnetic field spectral analysis for intermediate data sparsity
Luca Gallana, Federico Fraternale, Michele Iovieno +5
The Voyager probes are the furthest, still active, spacecraft ever launched from Earth. During their 38-year trip, they have collected data regarding solar wind properties (such as…
Global Numerical Modeling of Energetic Proton Acceleration in a Coronal Mass Ejection Traveling through the Solar Corona
Kamen A. Kozarev, Rebekah M. Evans, Nathan A. Schwadron +4
The acceleration of protons and electrons to high (sometimes GeV/nucleon) energies by solar phenomena is a key component of space weather. These solar energetic particle (SEP) even…