Very Large Array (VLA)

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Signatures of Confined and Eruptive Solar Flares in Microwave Spectra by E. W. Cliver et al.

January 6, 2026

Solar flares are generally divided into two classes: eruptive flares (with associated coronal mass ejections; CMEs, see previous CME nuggets by CESRA) and confined flares that lack CMEs. Because eruptive flares are the principal source of major space weather effects at Earth, relatively little attention was paid to confined flares until the great sunspot group of October 2014, designated NOAA 12192, passed across the solar disk giving rise to 35 […]

Radio and X-ray Observations of Short-lived Episodes of Electron Acceleration in a Solar Microflare by R. Sharma et al.

March 30, 2021

In a solar flare, the plasma is locally heated and particles are accelerated to energies from a few tens of keV to MeVs. X-ray bremsstrahlung emission and radio gyrosynchrotron emission are highly complementary and provide diagnostics of the timing, location and spectral properties of flare-accelerated electrons in a broad energy range. Here we present comprehensive observations of multiple individual bursts during a GOES B1.7-class (back-ground subtracted) microflare observed jointly in […]

Split-Band Feature of a Solar Flare Termination Shock by Chen et al

November 12, 2019

In many space and astrophysical plasma contexts, shocks are considered as one of the most important mechanisms for accelerating charged particles up to relativistic speeds. Different types of shocks are present on the Sun. One of the most well-known types is shocks driven by coronal mass ejections (see, e.g., Morosan et al. 2019, and recent CESRA Nuggets by Mancuso et al., Chrysaphi et al., Zucca et al.). There is another […]