Search Results - "Lysak, R."

Field Line Resonances in Jupiter's Magnetosphere by Lysak, R. L., Song, Y.

“…The arrival of the Juno satellite at Jupiter has led to an increased interest in the dynamics of the Jovian magnetosphere. Jupiter's auroral emissions often…”
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Kinetic Alfvén waves and auroral particle acceleration: a review by Lysak, R. L.

“…Shear mode Alfvén waves are the carriers of field-aligned currents in the auroral zones of Earth and other planets. These waves travel along the magnetic field…”
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A Numerical Model for the Interaction of Io‐Generated Alfvén Waves With Jupiter's Magnetosphere and Ionosphere by Lysak, R. L., Sulaiman, A. H., Bagenal, F., Crary, F.

“…The interaction of Io with the corotating magnetosphere of Jupiter is known to produce Alfvén wings that couple the moon to Jupiter's ionosphere. We present…”
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The Jovian Ionospheric Alfvén Resonator and Auroral Particle Acceleration by Lysak, R. L., Song, Y., Elliott, S., Kurth, W., Sulaiman, A. H., Gershman, D.

“…The ionospheric Alfvén resonator (IAR) is a structure formed by the rapid decrease in the plasma density above a planetary ionosphere. This results in a…”
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Poynting Fluxes, Field‐Aligned Current Densities, and the Efficiency of the Io‐Jupiter Electrodynamic Interaction by Sulaiman, A. H., Szalay, J. R., Clark, G., Allegrini, F., Bagenal, F., Brennan, M. J., Connerney, J. E. P., Hue, V., Kurth, W. S., Lysak, R. L., Nichols, J. D., Saur, J., Bolton, S. J.

“…Juno's highly inclined orbits provide opportunities to sample high‐latitude magnetic field lines connected to the orbit of Io, among the other Galilean…”
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Io's Near‐Field Alfvén Wings and Local Electron Beams Inferred From Juno/Waves by Sulaiman, A. H., Kurth, W. S., Connerney, J. E. P., Elliott, S. S., Hospodarsky, G. B., Kruegler, N. S., Lysak, R. L., Menietti, J. D., Szalay, J. R., Allegrini, F., Bolton, S. J.

“…Juno conducted two close Io flybys on 30 December 2023 and 03 February 2024, both at a minimum altitude of 1,500 km. Filamentary structures in the electric and…”
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Diagnosing the Role of Alfvén Waves in Magnetosphere‐Ionosphere Coupling: Swarm Observations of Large Amplitude Nonstationary Magnetic Perturbations During an Interval of Northward IMF by Pakhotin, I. P., Mann, I. R., Lysak, R. L., Knudsen, D. J., Gjerloev, J. W., Rae, I. J., Forsyth, C., Murphy, K. R., Miles, D. M., Ozeke, L. G., Balasis, G.

“…High‐resolution multispacecraft Swarm data are used to examine magnetosphere‐ionosphere coupling during a period of northward interplanetary magnetic field…”
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Numerical Investigations of Interhemispheric Asymmetry due to Ionospheric Conductance by Lysak, R. L., Song, Y., Waters, C. L., Sciffer, M. D., Obana, Y.

“…Due to differences in solar illumination, a geomagnetic field line may have one foot point in a dark ionosphere while the other ionosphere is in daylight. This…”
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Jupiter's Low‐Altitude Auroral Zones: Fields, Particles, Plasma Waves, and Density Depletions by Sulaiman, A. H., Mauk, B. H., Szalay, J. R., Allegrini, F., Clark, G., Gladstone, G. R., Kotsiaros, S., Kurth, W. S., Bagenal, F., Bonfond, B., Connerney, J. E. P., Ebert, R. W., Elliott, S. S., Gershman, D. J., Hospodarsky, G. B., Hue, V., Lysak, R. L., Masters, A., Santolík, O., Saur, J., Bolton, S. J.

“…The Juno spacecraft's polar orbits have enabled direct sampling of Jupiter's low‐altitude auroral field lines. While various data sets have identified unique…”
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Propagation of kinetic Alfvén waves in the ionospheric Alfvén resonator in the presence of density cavities by Lysak, R. L., Song, Y.

“…Recent observations of particle distributions that are narrow in pitch angle and broad in energy have suggested that kinetic Alfvén waves are a significant…”
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Alfvénic Dynamics and Fine Structuring of Discrete Auroral Arcs: Swarm and e‐POP Observations by Miles, D. M., Mann, I. R., Pakhotin, I. P., Burchill, J. K., Howarth, A. D., Knudsen, D. J., Lysak, R. L., Wallis, D. D., Cogger, L. L., Yau, A. W.

“…The electrodynamics associated with dual discrete arc aurora with antiparallel flow along the arcs were observed nearly simultaneously by the enhanced Polar…”
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Quiet, Discrete Auroral Arcs: Acceleration Mechanisms by Lysak, R., Echim, M., Karlsson, T., Marghitu, O., Rankin, R., Song, Y., Watanabe, T.-H.

“…The theory of the acceleration of auroral particles is reviewed, focusing on developments in the last 15 years. We discuss elementary plasma physics processes…”
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Propagation of Pi2 pulsations in a dipole model of the magnetosphere by Lysak, R. L., Song, Y., Sciffer, M. D., Waters, C. L.

“…Localized fast flows that impinge on the inner magnetosphere from the plasma sheet are observed to oscillate on time scales of minutes. The compression ahead…”
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Auroral Beads in Conjunction With Kinetic Alfvén Waves in the Equatorial Inner‐Magnetosphere by Tian, S., Lyons, L. R., Nishimura, Y., Wygant, J. R., Lysak, R. L., Ferradas, C. P., An, X., Igl, A. B., Reeves, G. D., Larsen, B. A., Ma, D.

“…Auroral beads are spatially wavy forms routinely seen before the onset of auroral substorms and are closely related to the onset‐related instabilities. To…”
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Ultra-low frequency wave coupling in the ionospheric Alfvén resonator: Characteristics and implications for the interpretation of ground magnetic fields by Woodroffe, J. R., Lysak, R. L.

“…In cold magnetospheric plasmas, ultra‐low frequency (ULF) waves occur in either the Alfvén or magnetosonic mode. Owing to the strong inhomogeneity of the…”
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Magnetosphere-ionosphere coupling by Alfvén waves at midlatitudes by Lysak, R. L.

“…Numerical modeling of magnetosphere‐ionosphere coupling by Alfvén waves has proven to be a valuable tool in describing the propagation and evolution of…”
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Cluster observations of an intense normal component of the electric field at a thin reconnecting current sheet in the tail and its role in the shock-like acceleration of the ion fluid into the separatrix region by Wygant, J. R., Cattell, C. A., Lysak, R., Song, Y., Dombeck, J., McFadden, J., Mozer, F. S., Carlson, C. W., Parks, G., Lucek, E. A., Balogh, A., Andre, M., Reme, H., Hesse, M., Mouikis, C.

“…Measurements from the Cluster spacecraft of electric fields, magnetic fields, and ions are used to study the structure and dynamics of the reconnection region…”
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Turbidity as an ecological constraint on learned predator recognition and generalization in a prey fish by Ferrari, Maud C.O., Lysak, Kenton R., Chivers, Douglas P.

“…The way in which prey animals respond to predators is crucial in shaping direct and indirect interactions in ecosystems. Here, we investigated how a change in…”
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A mechanism of the auroral substorm expansion onset: electric discharge in the double layer by Song, Yan, Lysak, R. L.

“…Magnetospheric substorms often occur when a significant amount of energy from the solar wind is deposited and stored in the magnetotail during the growth phase…”
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Polar spacecraft based comparisons of intense electric fields and Poynting flux near and within the plasma sheet-tail lobe boundary to UVI images: An energy source for the aurora by Wygant, J. R., Keiling, A., Cattell, C. A., Johnson, M., Lysak, R. L., Temerin, M., Mozer, F. S., Kletzing, C. A., Scudder, J. D., Peterson, W., Whitaker, Ann F.

“…In this paper, we present measurements from two passes of the Polar spacecraft of intense electric and magnetic field structures associated with Alfven waves…”
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