Search Results - "Opher, M."

The Heliosphere: What Did We Learn in Recent Years and the Current Challenges by Opher, M.

“…This paper will review the state-of-the art of our understanding of this new heliosphere. In late 2012 Voyager 1 observed several events that indicated a…”
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PROBABILITY OF CME IMPACT ON EXOPLANETS ORBITING M DWARFS AND SOLAR-LIKE STARS by Kay, C., Opher, M., Kornbleuth, M.

“…ABSTRACT Solar coronal mass ejections (CMEs) produce adverse space weather effects at Earth. Planets in the close habitable zone of magnetically active M…”
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GLOBAL TRENDS OF CME DEFLECTIONS BASED ON CME AND SOLAR PARAMETERS by Kay, C., Opher, M., Evans, R. M.

“…ABSTRACT Accurate space weather forecasting requires knowledge of the trajectory of coronal mass ejections (CMEs), including any deflections close to the Sun…”
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Predicting the Magnetic Field of Earth-impacting CMEs by Kay, C., Gopalswamy, N., Reinard, A., Opher, M.

“…Predicting the impact of coronal mass ejections (CMEs) and the southward component of their magnetic field is one of the key goals of space weather…”
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FORECASTING A CORONAL MASS EJECTION'S ALTERED TRAJECTORY: ForeCAT by Kay, C, Opher, M, Evans, R M

“…To predict whether a coronal mass ejection (CME) will impact Earth, the effects of the background on the CME's trajectory must be taken into account. We…”
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M-dwarf stellar winds: the effects of realistic magnetic geometry on rotational evolution and planets by Vidotto, A. A., Jardine, M., Morin, J., Donati, J. F., Opher, M., Gombosi, T. I.

“…We perform three-dimensional numerical simulations of stellar winds of early-M-dwarf stars. Our simulations incorporate observationally reconstructed…”
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USING ForeCAT DEFLECTIONS AND ROTATIONS TO CONSTRAIN THE EARLY EVOLUTION OF CMEs by Kay, C., Opher, M., Colaninno, R. C., Vourlidas, A.

“…ABSTRACT To accurately predict the space weather effects of the impacts of coronal mass ejection (CME) at Earth one must know if and when a CME will impact…”
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A Magnetic Reconnection Mechanism for the Generation of Anomalous Cosmic Rays by Drake, J. F, Opher, M, Swisdak, M, Chamoun, J. N

“…The recent observations of the anomalous cosmic ray (ACR) energy spectrum as Voyager 1 and Voyager 2 crossed the heliospheric termination shock have called…”
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A Comparison of Particle-in-cell and Hybrid Simulations of the Heliospheric Termination Shock by Swisdak, M., Giacalone, J., Drake, J. F., Opher, M., Zank, G. P., Zieger, B.

“…Abstract We compare hybrid (kinetic proton, fluid electron) and particle-in-cell (kinetic proton, kinetic electron) simulations of the solar wind termination…”
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Numerical Modeling of Energetic Charged-particle Transport with SPECTRUM Software: General Approach and Artificial Effects due to Field Discretization by Guzmán, J. G. Alonso, Florinski, V., Tóth, G., Sharma, S., van der Holst, B., Opher, M.

“…Test-particle simulations are an important tool for magnetospheric and heliophysics research. In this paper, we present the Space Plasma and Energetic Charged…”
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Turbulence and Diffusive Transport of Cosmic Rays in the Very Local Interstellar Medium by Florinski, V., Alonso Guzman, J. G., Giacalone, J., le Roux, J. A., Opher, M.

“…Abstract We study the transport of fast charged particles, such as galactic cosmic rays, in the very local interstellar medium (VLISM), which is currently…”
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Consequences of Treating the Solar Magnetic Field as a Dipole on the Global Structure of the Heliosphere and Heliosheath by Michael, A. T., Opher, M., Tóth, G.

“…We investigate the effect of including the heliospheric current sheet on global modeling of the heliosphere. Due to inherent numerical dissipation in the…”
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The Solar Wind with Hydrogen Ion Exchange and Large-scale Dynamics (SHIELD) Code: A Self-consistent Kinetic–Magnetohydrodynamic Model of the Outer Heliosphere by Michael, A. T., Opher, M., Tóth, G., Tenishev, V., Borovikov, D.

“…Abstract Neutral hydrogen has been shown to greatly impact the plasma flow in the heliosphere and the location of the heliospheric boundaries. We present the…”
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Hybrid Simulations of Interstellar Pickup Protons Accelerated at the Solar-wind Termination Shock at Multiple Locations by Giacalone, J., Nakanotani, M., Zank, G. P., Kòta, J., Opher, M., Richardson, J. D.

“…Abstract We estimate the intensity of interstellar pickup protons accelerated to ∼50 keV at various locations along the solar-wind termination shock, using…”
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An Anomalous Cosmic-Ray Mediated Termination Shock: Implications for Energetic Neutral Atoms by Kornbleuth, M., Opher, M., Zank, G. P., Wang, B. B., Giacalone, J., Gkioulidou, M., Dialynas, K.

“…Abstract The Voyager 2 crossing of the termination shock indicated that most of the upstream energy from the thermal solar wind ions was transferred to pickup…”
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Probing the Length of the Heliospheric Tail with Energetic Neutral Atoms (ENAs) from 0.52 to 80 keV by Kornbleuth, M., Opher, M., Dialynas, K., Zank, G. P., Wang, B. B., Baliukin, I., Gkioulidou, M., Giacalone, J., Izmodenov, V., Sokół, J. M., Dayeh, M. A.

“…Abstract The shape of the heliosphere is currently under active debate. Energetic neutral atoms (ENAs) offer the best method for investigating the global…”
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Globally Distributed Energetic Neutral Atom Maps for the "Croissant" Heliosphere by Kornbleuth, M., Opher, M., Michael, A. T., Drake, J. F.

“…A recent study by Opher et al. suggested the heliosphere has a "croissant" shape, where the heliosheath plasma is confined by the toroidal solar magnetic…”
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Inferring the Interstellar Magnetic Field Direction from Energetic Neutral Atom Observations of the Heliotail by Kornbleuth, M., Opher, M., Dayeh, M. A., Sokół, J. M., Chen, Y., Powell, E., Turner, D. L., Baliukin, I., Dialynas, K., Izmodenov, V.

“…Abstract Determining the magnitude and direction of the interstellar magnetic field ( B ISM ) is a long-standing problem. To date, some methods to infer the…”
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The Impact of Kinetic Neutrals on the Heliotail by Michael, A. T., Opher, M., Tóth, G., Tenishev, V., Drake, J. F.

“…Abstract The shape of the heliosphere is thought to resemble a long, comet tail, however, recently it has been suggested that the heliosphere is tailless with…”
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A Turbulent Heliosheath Driven by the Rayleigh–Taylor Instability by Opher, M., Drake, J. F., Zank, G., Powell, E., Shelley, W., Kornbleuth, M., Florinski, V., Izmodenov, V., Giacalone, J., Fuselier, S., Dialynas, K., Loeb, A., Richardson, J.

“…Abstract The heliosphere is the bubble formed by the solar wind as it interacts with the interstellar medium (ISM). The collimation of the heliosheath (HS)…”
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