Search Results - "Turner, L D"

Statistical characteristics of particle injections throughout the equatorial magnetotail by Gabrielse, C., Angelopoulos, V., Runov, A., Turner, D. L.

“…Energetic particle injections are critical for supplying particles and energy to the inner magnetosphere. Recent case studies have demonstrated a good…”
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Electromagnetic Energy Conversion at Reconnection Fronts by Angelopoulos, V., Runov, A., Zhou, X.-Z., Turner, D. L, Kiehas, S. A., Li, S.-S., Shinohara, I.

“…Earth's magnetotail contains magnetic energy derived from the kinetic energy of the solar wind. Conversion of that energy back to particle energy ultimately…”
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Relativistic Electrons Produced by Foreshock Disturbances Observed Upstream of Earth's Bow Shock by Wilson, L B, Sibeck, D G, Turner, D L, Osmane, A, Caprioli, D, Angelopoulos, V

“…Charged particles can be reflected and accelerated by strong (i.e., high Mach number) astrophysical collisionless shock waves, streaming away to form a…”
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The effects of transient, localized electric fields on equatorial electron acceleration and transport toward the inner magnetosphere by Gabrielse, C., Angelopoulos, V., Runov, A., Turner, D. L.

“…Motivated by recent observations of intense electric fields and elevated energetic particle fluxes within flow bursts beyond geosynchronous altitude (Runov et…”
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Electron-scale measurements of magnetic reconnection in space by Burch, J. L., Torbert, R. B., Phan, T. D., Chen, L.-J., Moore, T. E., Ergun, R. E., Eastwood, J. P., Gershman, D. J., Cassak, P. A., Argall, M. R., Wang, S., Hesse, M., Pollock, C. J., Giles, B. L., Nakamura, R., Mauk, B. H., Fuselier, S. A., Russell, C. T., Strangeway, R. J., Drake, J. F., Shay, M. A., Khotyaintsev, Yu. V., Lindqvist, P.-A., Marklund, G., Wilder, F. D., Young, D. T., Torkar, K., Goldstein, J., Dorelli, J. C., Avanov, L. A., Oka, M., Baker, D. N., Jaynes, A. N., Goodrich, K. A., Cohen, I. J., Turner, D. L., Fennell, J. F., Blake, J. B., Clemmons, J., Goldman, M., Newman, D., Petrinec, S. M., Trattner, K. J., Lavraud, B., Reiff, P. H., Baumjohann, W., Magnes, W., Steller, M., Lewis, W., Saito, Y., Coffey, V., Chandler, M.

“…Magnetic reconnection is a fundamental physical process in plasmas whereby stored magnetic energy is converted into heat and kinetic energy of charged…”
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Electron-scale dynamics of the diffusion region during symmetric magnetic reconnection in space by Torbert, R B, Burch, J L, Phan, T D, Hesse, M, Argall, M R, Shuster, J, Ergun, R E, Alm, L, Nakamura, R, Genestreti, K J, Gershman, D J, Paterson, W R, Turner, D L, Cohen, I, Giles, B L, Pollock, C J, Wang, S, Chen, L-J, Stawarz, J E, Eastwood, J P, Hwang, K J, Farrugia, C, Dors, I, Vaith, H, Mouikis, C, Ardakani, A, Mauk, B H, Fuselier, S A, Russell, C T, Strangeway, R J, Moore, T E, Drake, J F, Shay, M A, Khotyaintsev, Yuri V, Lindqvist, P-A, Baumjohann, W, Wilder, F D, Ahmadi, N, Dorelli, J C, Avanov, L A, Oka, M, Baker, D N, Fennell, J F, Blake, J B, Jaynes, A N, Le Contel, O, Petrinec, S M, Lavraud, B, Saito, Y

“…Magnetic reconnection is an energy conversion process that occurs in many astrophysical contexts including Earth's magnetosphere, where the process can be…”
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Observational Evidence for Stochastic Shock Drift Acceleration of Electrons at the Earth's Bow Shock by Amano, T, Katou, T, Kitamura, N, Oka, M, Matsumoto, Y, Hoshino, M, Saito, Y, Yokota, S, Giles, B L, Paterson, W R, Russell, C T, Le Contel, O, Ergun, R E, Lindqvist, P-A, Turner, D L, Fennell, J F, Blake, J B

“…The first-order Fermi acceleration of electrons requires an injection of electrons into a mildly relativistic energy range. However, the mechanism of injection…”
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What Causes Radiation Belt Enhancements: A Survey of the Van Allen Probes Era by Boyd, A. J., Turner, D. L., Reeves, G. D., Spence, H. E., Baker, D. N., Blake, J. B.

“…We survey radiation belt enhancement events during the Van Allen Probes era to determine what mechanism is the dominant cause of enhancements and where it is…”
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Average thermodynamic and spectral properties of plasma in and around dipolarizing flux bundles by Runov, A., Angelopoulos, V., Gabrielse, C., Liu, J., Turner, D. L., Zhou, X.-Z.

“…Recent observations have suggested that spatially localized flows of high‐temperature, low‐density plasma carrying a dipolarized magnetic field (dipolarizing…”
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Observations Directly Linking Relativistic Electron Microbursts to Whistler Mode Chorus: Van Allen Probes and FIREBIRD II by Breneman, A. W., Crew, A., Sample, J., Klumpar, D., Johnson, A., Agapitov, O., Shumko, M., Turner, D. L., Santolik, O., Wygant, J. R., Cattell, C. A., Thaller, S., Blake, B., Spence, H., Kletzing, C. A.

“…We present observations that provide the strongest evidence yet that discrete whistler mode chorus packets cause relativistic electron microbursts. On 20…”
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Effect of EMIC waves on relativistic and ultrarelativistic electron populations: Ground-based and Van Allen Probes observations by Usanova, M. E., Drozdov, A., Orlova, K., Mann, I. R., Shprits, Y., Robertson, M. T., Turner, D. L., Milling, D. K., Kale, A., Baker, D. N., Thaller, S. A., Reeves, G. D., Spence, H. E., Kletzing, C., Wygant, J.

“…We study the effect of electromagnetic ion cyclotron (EMIC) waves on the loss and pitch angle scattering of relativistic and ultrarelativistic electrons during…”
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Electron Acceleration in the Heart of the Van Allen Radiation Belts by Reeves, G. D., Spence, H. E., Henderson, M. G., Morley, S. K., Friedel, R. H. W., Funsten, H. O., Baker, D. N., Kanekal, S. G., Blake, J. B., Fennell, J. F., Claudepierre, S. G., Thorne, R. M., Turner, D. L., Kletzing, C. A., Kurth, W. S., Larsen, B. A., Niehof, J. T.

“…The Van Allen radiation belts contain ultrarelativistic electrons trapped in Earth's magnetic field. Since their discovery in 1958, a fundamental unanswered…”
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The Response of Earth's Electron Radiation Belts to Geomagnetic Storms: Statistics From the Van Allen Probes Era Including Effects From Different Storm Drivers by Turner, D. L., Kilpua, E. K. J., Hietala, H., Claudepierre, S. G., O'Brien, T. P., Fennell, J. F., Blake, J. B., Jaynes, A. N., Kanekal, S., Baker, D. N., Spence, H. E., Ripoll, J.‐F., Reeves, G. D.

“…A statistical study was conducted of Earth's radiation belt electron response to geomagnetic storms using NASA's Van Allen Probes mission. Data for electrons…”
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Explaining the dynamics of the ultra-relativistic third Van Allen radiation belt by Mann, I. R., Ozeke, L. G., Murphy, K. R., Claudepierre, S. G., Turner, D. L., Baker, D. N., Rae, I. J., Kale, A., Milling, D. K., Boyd, A. J., Spence, H. E., Reeves, G. D., Singer, H. J., Dimitrakoudis, S., Daglis, I. A., Honary, F.

“…Since the discovery of the Van Allen radiation belts over 50 years ago, an explanation for their complete dynamics has remained elusive. Especially challenging…”
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On the storm-time evolution of relativistic electron phase space density in Earth's outer radiation belt by Turner, D. L., Angelopoulos, V., Li, W., Hartinger, M. D., Usanova, M., Mann, I. R., Bortnik, J., Shprits, Y.

“…We report on internal, magnetospheric processes related to markedly different storm‐time responses of phase space density (PSD) in invariant coordinates…”
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Two-step Acceleration of Energetic Electrons at Magnetic Flux Ropes during Turbulent Reconnection by Wang, Z., Vaivads, A., Fu, H. S., Cao, J. B., Lindberg, M., Turner, D. L., Ergun, R. E., Liu, Y. Y.

“…Abstract Energetic electrons have been frequently observed during magnetic reconnection in the magnetotail. The acceleration process of the energetic electrons…”
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Quantifying the radiation belt seed population in the 17 March 2013 electron acceleration event by Boyd, A. J., Spence, H. E., Claudepierre, S. G., Fennell, J. F., Blake, J. B., Baker, D. N., Reeves, G. D., Turner, D. L.

“…We present phase space density (PSD) observations using data from the Magnetic Electron Ion Spectrometer instrument on the Van Allen Probes for the 17 March…”
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Autogenous and efficient acceleration of energetic ions upstream of Earth’s bow shock by Turner, D. L., Wilson, L. B., Liu, T. Z., Cohen, I. J., Schwartz, S. J., Osmane, A., Fennell, J. F., Clemmons, J. H., Blake, J. B., Westlake, J., Mauk, B. H., Jaynes, A. N., Leonard, T., Baker, D. N., Strangeway, R. J., Russell, C. T., Gershman, D. J., Avanov, L., Giles, B. L., Torbert, R. B., Broll, J., Gomez, R. G., Fuselier, S. A., Burch, J. L.

“…Earth and its magnetosphere are immersed in the supersonic flow of the solar-wind plasma that fills interplanetary space. As the solar wind slows and deflects…”
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Effects of whistler mode hiss waves in March 2013 by Ripoll, J.‐F., Santolík, O., Reeves, G. D., Kurth, W. S., Denton, M. H., Loridan, V., Thaller, S. A., Kletzing, C. A., Turner, D. L.

“…We present simulations of the loss of radiation belt electrons by resonant pitch angle diffusion caused by whistler mode hiss waves for March 2013. Pitch angle…”
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Characteristics of Electron Precipitation During 40 Energetic Electron Injections Inferred via Subionospheric VLF Signal Propagation by Ghaffari, R., Cully, C. M., Turner, D. L., Reeves, G. D.

“…Energetic electron injection events are associated with energetic electron precipitation (EEP) through possible resonant wave‐particle interactions. Previous…”
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