Search Results - "Torbert, Roy B"

Observational Evidence of Magnetic Reconnection in the Terrestrial Bow Shock Transition Region by Wang, Shan, Chen, Li‐Jen, Bessho, Naoki, Hesse, Michael, Wilson, Lynn B., Giles, Barbara, Moore, Thomas E., Russell, Christopher T., Torbert, Roy B., Burch, James L.

“…We report evidence of magnetic reconnection in the transition region of the Earth's bow shock when the angle between the shock normal and the immediate…”
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Statistics of Kinetic Dissipation in the Earth’s Magnetosheath: MMS Observations by Bandyopadhyay, Riddhi, Matthaeus, William H., Parashar, Tulasi N., Yang, Yan, Chasapis, Alexandros, Giles, Barbara L., Gershman, Daniel J., Pollock, Craig J., Russell, Christopher T., Strangeway, Robert J., Torbert, Roy B., Moore, Thomas E., Burch, James L.

“…A familiar problem in space and astrophysical plasmas is to understand how dissipation and heating occurs. These effects are often attributed to the cascade of…”
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MMS Observations and Hybrid Simulations of Surface Ripples at a Marginally Quasi‐Parallel Shock by Gingell, Imogen, Schwartz, Steven J., Burgess, David, Johlander, Andreas, Russell, Christopher T., Burch, James L., Ergun, Robert E., Fuselier, Stephen, Gershman, Daniel J., Giles, Barbara L., Goodrich, Katherine A., Khotyaintsev, Yuri V., Lavraud, Benoit, Lindqvist, Per‐Arne, Strangeway, Robert J., Trattner, Karlheinz, Torbert, Roy B., Wei, Hanying, Wilder, Frederick

“…Simulations and observations of collisionless shocks have shown that deviations of the nominal local shock normal orientation, that is, surface waves or…”
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Wave-Particle Energy Exchange Directly Observed in a Kinetic Alfven-Branch Wave by Gershman, Daniel J., Vinas, Adolfo F, Dorelli, John C, Boardsen, Scott A, Avanov, Levon A, Bellan, Paul M., Schwartz, Steven J., Lavraud, Benoit, Coffey, Victoria N, Chandler, Michael O, Saito, Yoshifumi, Paterson, William R, Fuselier, Stephen A., Ergun, Robert E, Strangeway, Robert J, Russell, Christopher T., Giles, Barbara L, Pollock, Craig J., Torbert, Roy B, Burch, James L

“…Alfven waves are fundamental plasma wave modes that permeate the universe. At small kinetic scales they provide a critical mechanism for the transfer of energy…”
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High‐Resolution Measurements of the Cross‐Shock Potential, Ion Reflection, and Electron Heating at an Interplanetary Shock by MMS by Cohen, Ian J., Schwartz, Steven J., Goodrich, Katherine A., Ahmadi, Narges, Ergun, Robert E., Fuselier, Stephen A., Desai, Mihir I., Christian, Eric R., McComas, David J., Zank, Gary P., Shuster, Jason R., Vines, Sarah K., Mauk, Barry H., Decker, Robert B., Anderson, Brian J., Westlake, Joseph H., Le Contel, Olivier, Breuillard, Hugo, Giles, Barbara L., Torbert, Roy B., Burch, James L.

“…The Magnetospheric Multiscale (MMS) spacecraft obtained unprecedented high‐time resolution multipoint particle and field measurements of an interplanetary…”
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Spacecraft and Instrument Photoelectrons Measured by the Dual Electron Spectrometers on MMS by Gershman, Daniel J., Avanov, Levon A., Boardsen, Scott A., Dorelli, John C., Gliese, Ulrik B., Barrie, Alexander C., Schiff, Conrad, Paterson, William R., Torbert, Roy B., Giles, Barbara L., Pollock, Craig J.

“…Secondary electrons are continuously generated via photoemission from sunlit spacecraft and instrument surfaces. These particles can subsequently contaminate…”
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Rippled Electron‐Scale Structure of a Dipolarization Front by Pan, Dong‐Xiao, Khotyaintsev, Yuri V., Graham, Daniel B., Vaivads, Andris, Zhou, Xu‐Zhi, André, Mats, Lindqvist, Per‐Arne, Ergun, Robert E., Le Contel, Olivier, Russell, Christopher T., Torbert, Roy B., Giles, Barbara, Burch, James L.

“…We use the Magnetospheric Multiscale mission to investigate electron‐scale structures at a dipolarization front. The four spacecraft are separated by electron…”
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Structure of the Current Sheet in the 11 July 2017 Electron Diffusion Region Event by Nakamura, Rumi, Genestreti, Kevin J., Nakamura, Takuma, Baumjohann, Wolfgang, Varsani, Ali, Nagai, Tsugunobu, Bessho, Naoki, Burch, James L., Denton, Richard E., Eastwood, Jonathan P., Ergun, Robert E., Gershman, Daniel J., Giles, Barbara L., Hasegawa, Hiroshi, Hesse, Michael, Lindqvist, Per‐Arne, Russell, Christopher T., Stawarz, Julia E., Strangeway, Robert J., Torbert, Roy B.

“…The structure of the current sheet along the Magnetospheric Multiscale (MMS) orbit is examined during the 11 July 2017 Electron Diffusion Region (EDR) event…”
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Multiscale Currents Observed by MMS in the Flow Braking Region by Nakamura, Rumi, Varsani, Ali, Genestreti, Kevin J., Le Contel, Olivier, Nakamura, Takuma, Baumjohann, Wolfgang, Nagai, Tsugunobu, Artemyev, Anton, Birn, Joachim, Sergeev, Victor A., Apatenkov, Sergey, Ergun, Robert E., Fuselier, Stephen A., Gershman, Daniel J., Giles, Barbara J., Khotyaintsev, Yuri V., Lindqvist, Per‐Arne, Magnes, Werner, Mauk, Barry, Petrukovich, Anatoli, Russell, Christopher T., Stawarz, Julia, Strangeway, Robert J., Anderson, Brian, Burch, James L., Bromund, Ken R., Cohen, Ian, Fischer, David, Jaynes, Allison, Kepko, Laurence, Le, Guan, Plaschke, Ferdinand, Reeves, Geoff, Singer, Howard J., Slavin, James A., Torbert, Roy B., Turner, Drew L.

“…We present characteristics of current layers in the off‐equatorial near‐Earth plasma sheet boundary observed with high time‐resolution measurements from the…”
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Two‐Dimensional Velocity of the Magnetic Structure Observed on July 11, 2017 by the Magnetospheric Multiscale Spacecraft by Denton, Richard E., Torbert, Roy B., Hasegawa, Hiroshi, Genestreti, Kevin J., Manuzzo, Roberto, Belmont, Gerard, Rezeau, Laurence, Califano, Francesco, Nakamura, Rumi, Egedal, Jan, Le Contel, Olivier, Burch, James L., Gershman, Daniel J., Dors, Ivan, Argall, Matthew R., Russell, Christopher T., Strangeway, Robert J., Giles, Barbara L.

“…In order to determine particle velocities and electric field in the frame of the magnetic structure, one first needs to determine the velocity of the magnetic…”
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EMIC waves and associated relativistic electron precipitation on 25–26 January 2013 by Zhang, Jichun, Halford, Alexa J., Saikin, Anthony A., Huang, Chia‐Lin, Spence, Harlan E., Larsen, Brian A., Reeves, Geoffrey D., Millan, Robyn M., Smith, Charles W., Torbert, Roy B., Kurth, William S., Kletzing, Craig A., Blake, J. Bernard, Fennel, Joseph F., Baker, Daniel N.

“…Using measurements from the Van Allen Probes and the Balloon Array for RBSP Relativistic Electron Losses (BARREL), we perform a case study of electromagnetic…”
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Two-Scale Ion Meandering Caused by the Polarization Electric Field During Asymmetric Reconnection by Wang, Shan, Chen, Li-Jen, Hesse, Michael, Bessho, Naoki, Gershman, Daniel J., Dorelli, John, Giles, Barbara L., Torbert, Roy B., Pollock, Craig J., Strangeway, Robert, Ergun, Robert E., Burch, James L., Avanov, Levon, Lavraud, Benoit, Moore, Thomas E., Saito, Yoshifumi

“…Ion velocity distribution functions (VDFs) from a particle-in-cell simulation of asymmetric reconnection are investigated to reveal a two-scale structure of…”
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Observational features of charge distribution in Earth’s inner magnetosphere by Gao, Lai, Shen, Chao, Zhou, Yufei, Ji, Yong, Pu, Zuyin, Parks, George, Russell, Christopher T., Zeng, Gang, Ma, Lan, Torbert, Roy B., Yang, Yanyan, Burch, James L.

“…Understanding the motion of charged particles in the electromagnetic field in the inner magnetosphere is essential for space science and space weather. Charge…”
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Ion Demagnetization in the Magnetopause Current Layer Observed by MMS by Wang, Shan, Chen, Li-Jen, Hesse, Michael, Gershman, Daniel J., Dorelli, John, Giles, Barbara, Torbert, Roy B., Pollock, Craig J., Lavraud, Benoit, Strangeway, Robert, Avanov, Levon, Moore, Thomas E.

“…We report ion velocity distribution functions (VDfs) observed by Magnetospheric Multiscale Mission (MMS) and present evidence for demagnetized ion Speiser…”
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MMS SITL Ground Loop: Automating the Burst Data Selection Process by Argall, Matthew R., Small, Colin R., Piatt, Samantha, Breen, Liam, Petrik, Marek, Kokkonen, Kim, Barnum, Julie, Larsen, Kristopher, Wilder, Frederick D., Oka, Mitsuo, Paterson, William R., Torbert, Roy B., Ergun, Robert E., Phan, Tai, Giles, Barbara L., Burch, James L.

“…Global-scale energy flow throughout Earth's magnetosphere is catalyzed by processes that occur at Earth's magnetopause (MP). Magnetic reconnection is one…”
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Kinetic Alfvén wave explanation of the Hall fields in magnetic reconnection by Dai, Lei, Wang, Chi, Zhang, Yongcun, Lavraud, Benoit, Burch, James, Pollock, Craig, Torbert, Roy B.

“…Magnetic reconnection is initiated in a small diffusion region but can drive global‐scale dynamics in Earth's magnetosphere, solar flares, and astrophysical…”
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Optimized merging of search coil and fluxgate data for MMS by Fischer, David, Magnes, Werner, Hagen, Christian, Dors, Ivan, Chutter, Mark W, Needell, Jerry, Torbert, Roy B, Le Contel, Olivier, Strangeway, Robert J, Kubin, Gernot, Valavanoglou, Aris, Plaschke, Ferdinand, Nakamura, Rumi, Mirioni, Laurent, Russell, Christopher T, Leinweber, Hannes K, Bromund, Kenneth R, Le, Guan, Kepko, Lawrence, Anderson, Brian J, Slavin, James A, Baumjohann, Wolfgang

“…The Magnetospheric Multiscale mission (MMS) targets the characterization of fine-scale current structures in the Earth's tail and magnetopause. The high speed…”
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In Situ Observation of Hall Magnetohydrodynamic Cascade in Space Plasma by Bandyopadhyay, Riddhi, Sorriso-Valvo, Luca, Chasapis, Alexandros, Hellinger, Petr, Matthaeus, William H., Verdini, Andrea, Landi, Simone, Franci, Luca, Matteini, Lorenzo, Giles, Barbara L., Gershman, Daniel J., Moore, Thomas E., Pollock, Craig J., Russell, Christopher T., Strangeway, Robert J., Torbert, Roy B., Burch, James L.

“…We present estimates of the turbulent energy-cascade rate derived from a Hall-magnetohydrodynamic (MHD) third-order law. We compute the contribution from the…”
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Turbulence-Driven Ion Beams in the Magnetospheric Kelvin-Helmholtz Instability by Sorriso-Valvo, Luca, Catapano, Filomena, Retinò, Alessandro, Le Contel, Olivier, Perrone, Denise, Roberts, Owen W, Coburn, Jesse T, Panebianco, Vincenzo, Valentini, Francesco, Perri, Silvia, Greco, Antonella, Malara, Francesco, Carbone, Vincenzo, Veltri, Pierluigi, Pezzi, Oreste, Fraternale, Federico, Di Mare, Francesca, Marino, Raffaele, Giles, Barbara, Moore, Thomas E, Russell, Christopher T, Torbert, Roy B, Burch, Jim L, Khotyaintsev, Yuri V

“…The description of the local turbulent energy transfer and the high-resolution ion distributions measured by the Magnetospheric Multiscale mission together…”
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Polynomial Reconstruction of the Magnetic Field Observed by Multiple Spacecraft With Integrated Velocity Determination by Denton, Richard E., Liu, Yi‐Hsin, Hasegawa, Hiroshi, Torbert, Roy B., Li, Wenya, Fuselier, Stephen, Burch, James L.

“…Recently, a polynomial reconstruction technique has been developed for reconstructing the magnetic field in the vicinity of multiple spacecraft and has been…”
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