331 citations · 2.4k across the 59 of their papers we have counts for
26 papers · 1 filter
Energy Partitioning at the Termination Shock
Judit Szente, Bart van der Holst, Gabor Toth +1
We show new results of a global 3D magnetohydrodynamic (MHD) simulation of the Boston University outer heliosphere model where we used a newly developed approach that distributes t…
The Effect of Magnetic Field Dissipation in the Inner Heliosheath: Reconciling Global Heliosphere Model and Voyager Data
Sergey D. Korolkov, Igor I. Baliukin, Merav Opher
Global ideal magnetohydrodynamic models of the heliosphere typically predict a greatly exaggerated magnetic field pile-up in the inner heliosheath (IHS), the region between the ter…
Interstellar Neutral Hydrogen in the Heliosphere: New Horizons Observations in the Context of Models
P. Swaczyna, M. Bzowski, K. Dialynas +12
Interstellar neutral (ISN) hydrogen is the most abundant species in the outer heliosheath and the very local interstellar medium (VLISM). Charge exchange collisions in the outer he…
Trajectories of Coronal Mass Ejection from Solar-type Stars
Fabian Menezes, Adriana Valio, Yuri Netto +3
The Sun and other solar-type stars have magnetic fields that permeate their interior and surface, extends through the interplanetary medium, and is the main driver of stellar activ…
Signature of a heliotail organized by the solar magnetic field and the role of non-ideal processes in modeled IBEX ENA maps: a comparison of the BU and Moscow MHD models
M. Kornbleuth, M. Opher, I. Baliukin +9
Energetic neutral atom (ENA) models typically require post-processing routines to convert the distributions of plasma and H atoms into ENA maps. Here we investigate how two differe…
The development of a split-tail heliosphere and the role of non-ideal processes: a comparison of the BU and Moscow models
M. Kornbleuth, M. Opher, I. Baliukin +11
Global models of the heliosphere are critical tools used in the interpretation of heliospheric observations. There are several three-dimensional magnetohydrodynamic (MHD) heliosphe…
The Confinement of the Heliosheath Plasma by the Solar Magnetic Field as Revealed by Energetic Neutral Atom Simulations
M. Kornbleuth, M. Opher, A. T. Michael +4
Traditionally, the solar magnetic field has been considered to have a negligible effect in the outer regions of the heliosphere. Recent works have shown that the solar magnetic fie…
Principles Of Heliophysics: a textbook on the universal processes behind planetary habitability
Karel Schrijver, Fran Bagenal, Tim Bastian +59
Heliophysics is the system science of the physical connections between the Sun and the solar system. As the physics of the local cosmos, it embraces space weather and planetary hab…
Corrugated Features in Coronal-mass-ejections-driven Shocks: A Discussion on the Predisposition to Particle Acceleration
A. Páez, V. Jatenco-Pereira, D. Falceta-Gonçalves +1
The study of the acceleration of particles is an essential element of research in the heliospheric science. Here, we discuss the predisposition to the particle acceleration around…
Globally Distributed Energetic Neutral Atom Maps for the "Croissant" Heliosphere
Marc Kornbleuth, Merav Opher, Adam T. Michael +1
A recent study by Opher et al. (2015) suggested the heliosphere has a "croissant" shape, where the heliosheath plasma is confined by the toroidal solar magnetic field. The "croissa…
Probability of CME Impact on Exoplanets Orbiting M Dwarfs and Solar-Like Stars
C. Kay, M. Opher, M. Kornbleuth
Solar coronal mass ejections (CMEs) produce adverse space weather effects at Earth. Planets in the close habitable zone of magnetically active M dwarfs may experience more extreme…
The Heliocentric Distance Where the Deflections and Rotations of Solar Coronal Mass Ejections Occur
C. Kay, M. Opher
Understanding the trajectory of a coronal mass ejection (CME), including any deflection from a radial path, and the orientation of its magnetic field is essential for space weather…
A model of the heliosphere with jets
J. F. Drake, M. Swisdak, M. Opher
An analytic model of the heliosheath (HS) between the termination shock (TS) and the heliopause (HP) is developed in the limit in which the interstellar flow and magnetic field are…
Constraining the Mass and the Non-Radial Drag Coefficient of a Solar Coronal Mass Ejection
C. Kay, L. F. G. dos Santos, M. Opher
Decades of observations show that CMEs can deflect from a purely radial trajectory yet no consensus exists as to the cause of these deflections. Many of theories attribute the CME…
Magnetized jets driven by the sun: the structure of the heliosphere revisited
M. Opher, J. F. Drake, B. Zieger +1
The classic accepted view of the heliosphere is a quiescent, comet-like shape aligned in the direction of the Sun's travel through the interstellar medium (ISM) extending for 1000'…
Global Trends of CME Deflections Based on CME and Solar Parameters
C. Kay, M. Opher, R. M. Evans
Accurate space weather forecasting requires knowledge of the trajectory of coronal mass ejections (CMEs), including any deflections close to the Sun or through interplanetary space…
On the Rotation of the Magnetic Field Across the Heliopause
Merav Opher, James F. Drake
There was an expectation that the magnetic field direction would rotate dramatically across the heliopause (HP). This rotation was used as one of the criteria to determine if Voyag…
A Porous, Layered Heliopause
M. Swisdak, J. F. Drake, M. Opher
The picture of the heliopause (HP) -- the boundary between the domains of the sun and the local interstellar medium (LISM) -- as a pristine interface with a large rotation in the m…
Propagation into the heliosheath of a large-scale solar wind disturbance bounded by a pair of shocks
E. Provornikova, M. Opher, V. Izmodenov +1
After the termination shock (TS) crossing, the Voyager 2 spacecraft has been observing strong variations of the magnetic field and solar wind parameters in the heliosheath. Anomalo…
Multi-ion, multi-fluid 3-D magnetohydrodynamic simulation of the outer heliosphere
Christina Prested, Merav Opher, Gabor Toth
Data from the Voyager probes and the Interstellar Boundary Explorer have revealed the importance of pick-up ions (PUIs) in understanding the character and behavior of the outer hel…
The stellar wind cycles and planetary radio emission of the Tau Boo system
A. A. Vidotto, R. Fares, M. Jardine +5
Tau Boo is an intriguing planet-host star that is believed to undergo magnetic cycles similar to the Sun, but with a duration that is about one order of magnitude smaller than that…
Kinetic vs. multi-fluid approach for interstellar neutrals in the heliosphere: exploration of the interstellar magnetic field effects
Fathallah Alouani-Bibi, Merav Opher, Dimitry Alexashov +2
We present a new 3d self-consistent two-component (plasma and neutral hydrogen) model of the solar wind interaction with the local interstellar medium (LISM). This model (K-MHD) co…
Is the magnetic field in the heliosheath laminar or a turbulent bath of bubbles?
M. Opher, J. F. Drake, M. Swisdak +4
All the current global models of the heliosphere are based on the assumption that the magnetic field in the heliosheath, in the region close to the heliopause is laminar. We argue…
Understanding the Angular Momentum Loss of Low-Mass Stars: The Case of V374 Peg
A. A. Vidotto, M. Jardine, M. Opher +2
Recently, surface magnetic field maps had been acquired for a small sample of active M dwarfs, showing that fully convective stars (spectral types ~M4 and later) host intense (~kG)…