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Found 3 entries in the Bibliography.
Showing entries from 1 through 3
2018 |
Spatial Expansion and Speeds of Type III Electron Beam Sources in the Solar Corona A component of space weather, electron beams are routinely accelerated in the solar atmosphere and propagate through interplanetary space. Electron beams interact with Langmuir waves resulting in type III radio bursts. They expand along the trajectory and, using kinetic simulations, we explore the expansion as the electrons propagate away from the Sun. Specifically, we investigate the front, peak, and back of the electron beam in space from derived radio brightness temperatures of fundamental type III emission. The front ... Published by: The Astrophysical Journal Published on: 11/2018 YEAR: 2018   DOI: 10.3847/1538-4357/aae5d4 Astrophysics - Solar and Stellar Astrophysics; parker solar probe; Solar Probe Plus; Solar wind; Sun: corona; Sun: flares; Sun: particle emission; Sun: radio radiation |
2017 |
Langmuir wave electric fields induced by electron beams in the heliosphere Solar electron beams responsible for type III radio emission generate Langmuir waves as they propagate out from the Sun. The Langmuir waves are observed via in situ electric field measurements. These Langmuir waves are not smoothly distributed but occur in discrete clumps, commonly attributed to the turbulent nature of the solar wind electron density. Exactly how the density turbulence modulates the Langmuir wave electric fields is understood only qualitatively. Using weak turbulence simulations, we investigate how solar ... Published by: Astronomy \& Astrophysics Published on: 02/2017 YEAR: 2017   DOI: 10.1051/0004-6361/201629697 Astrophysics - Solar and Stellar Astrophysics; parker solar probe; Physics - Plasma Physics; Physics - Space Physics; Solar Probe Plus; Solar wind; Sun: flares; Sun: heliosphere; Sun: magnetic fields; Sun: particle emission; Sun: radio radiation |
2014 |
DYNAMICS OF DOUBLE LAYERS, ION ACCELERATION, AND HEAT FLUX SUPPRESSION DURING SOLAR FLARES Observations of flare-heated electrons in the corona typically suggest confinement of electrons. The confinement mechanism, however, remains unclear. The transport of coronal hot electrons into ambient plasma was recently investigated by particle-in-cell (PIC) simulations. Electron transport was significantly suppressed by the formation of a highly localized, nonlinear electrostatic potential in the form of a double layer (DL). In this work large-scale PIC simulations are performed to explore the dynamics of DLs in larger ... Li, T.; Drake, J.; Swisdak, M.; Published by: The Astrophysical Journal Published on: 09/2014 YEAR: 2014   DOI: 10.1088/0004-637X/793/1/7 acceleration of particles; Astrophysics - Solar and Stellar Astrophysics; parker solar probe; Physics - Plasma Physics; Physics - Space Physics; Solar Probe Plus; Solar wind; Sun: corona; Sun: flares |
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