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July 2020

Observations of fragmented energy release during solar flare emission
by R. Ramesh et al.*

2020-07-28

Type III radio bursts from the Sun are signatures of energetic (∼1–100 keV) electrons, accelerated at the reconnection sites, propagating upward through the corona into the interplanetary medium along open magnetic field lines. The emission mechanism of the bursts is widely believed to be due to coherent plasma processes. The bursts are observed typically in the frequency range $\approx 1\,$GHz$ – 10\,$kHz, which corresponds to radial distance range between the […]

Density and magnetic field turbulence in solar flares estimated from radio zebra observations
by M. Karlicky and L. Yasnov

2020-07-14

Solar flares are characterized by fast plasma flows. In such plasma flows owing to the Kelvin-Helmholtz instability the maqnetohydrodynamic turbulence can be generated. Although, the turbulence plays an important role in solar flares, e.g., in acceleration of particles, a knowledge about the level of  this turbulence is still very limited.  In the present study we estimate the levels of this turbulence. For this purpose we use observations of the so called zebra […]

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Atacama Large Millimeter Array (ALMA) (10) chromosphere (12) coronal magnetic field (14) Coronal Mass Ejection (CME) (43) density fluctuations (14) electron cyclotron maser (ECM) (4) energetic electrons (14) fine spectral structures (4) free-free emission (8) Giant Metrewave Radio Telescope (GMRT) (3) gyrosynchrotron emission (13) hard X-ray (4) ionosphere (4) Langmuir waves (8) Low Frequency Array (LOFAR) (21) microwave emission (15) Murchison Widefield Array (MWA) (10) Nancay Radio Heliograph (NRH) (5) Nobeyama Radioheliograph (NoRH) (8) Parker Solar Probe (PSP) (11) particle acceleration (8) plasma radio emission (6) Quasi-periodic pulsations (QPP) (4) quiet Sun (9) radio spikes (11) radio wave scattering (13) shock wave (7) simulations (4) Solar Dynamics Observatory (SDO) (4) solar energetic particles (SEP) (24) solar flare (29) Solar Orbiter (SolO) (6) solar radio emission (20) space weather (4) STEREO (9) submillimeter emission (4) turbulence (18) Type III solar radio bursts (65) Type II solar radio bursts (37) Type I solar radio bursts (7) Type IV solar radio bursts (11) Ukrainian T-shaped radio telescope (UTR-2) (4) Ultraviolet (UV)/extreme ultraviolet (EUV) emissions (6) Wind (spacecraft) (6) zebra-structure (7)
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  • Multi-spacecraft Radio Observations Trace the Heliospheric Magnetic Field by D. L. Clarkson et al.

    2025-04-25

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