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Found 5 entries in the Bibliography.
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Large coronal loops around one solar radius in altitude are an important connection between the solar wind and the low solar corona. However, their plasma properties are ill-defined, as standard X-ray and UV techniques are not suited to these low-density environments. Diagnostics from type J solar radio bursts at frequencies above 10 MHz are ideally suited to understand these coronal loops. Despite this, J-bursts are less frequently studied than their type III cousins, in part because the curvature of the coronal loop makes ...
Published by: \solphys Published on: jan
YEAR: 2023   DOI: 10.1007/s11207-022-02096-0
Solar accelerated electron beams, a component of space weather, are emitted by eruptive events at the Sun. They interact with the ambient plasma to grow Langmuir waves, which subsequently produce radio emission, changing the electrons motion through space. Solar electron beam-plasma interactions are simulated using a quasilinear approach to kinetic theory to probe the variations in the maximum electron velocity [\ensuremath\Xi ] responsible for Langmuir wave growth between the Sun s surface and 50 R$_\ensuremath\odot$ above ...
Published by: \solphys Published on: apr
YEAR: 2023   DOI: 10.1007/s11207-023-02145-2
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
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
Solar flare accelerated electrons escaping into the interplanetary space and seen as type III solar radio bursts are often detected near the Earth. Using numerical simulations we consider the evolution of energetic electron spectrum in the inner heliosphere and near the Earth. The role of Langmuir wave generation, heliospheric plasma density fluctuations, and expansion of magnetic field lines on the electron peak flux and fluence spectra is studied to predict the electron properties as could be observed by Solar Orbiter a ...
Published by: Solar Physics Published on: 07/2013
YEAR: 2013   DOI: 10.1007/s11207-012-0013-x