CESRA - Community of European Solar Radio Astronomers

09/06/2026

https://cesra.net/?p=4438

Solar flares are the most explosive energy-release events in the solar corona, leading to intense particle acceleration, plasma heating, and bulk plasma motions on short timescales. Core questions during solar flares remain unresolved, including how and where particle acceleration occurs, and how en...

26/05/2026

https://cesra.net/?p=4234

Type III solar radio bursts, which appear as characteristic frequency-drifting features on radio dynamic spectra, are generated by energetic beams of electrons originating in solar active regions and propagating through the solar corona and interplanetary medium. The early low frequency spacecraft o...

21/05/2026

https://www.youtube.com/watch?v=1cZviOj6-uI

NASA scientists tracked a record-breaking solar radio burst that la...

14/05/2026

Typically, solar radio bursts like these last a few hours to days. But this one was different.

12/05/2026

Solar type II radio bursts are slow-drifting emissions in radio dynamic spectra, traditionally interpreted as signatures of shock waves driven by fast coronal mass ejections (CMEs). They provide the primary diagnostics for energetic electron acceleration and transport in solar eruptions. However, a....

30/04/2026

Solar radio bursts are intrinsically linked to the motion of their emitting source through the coronal and heliospheric plasma. Electron transport is mostly confined to magnetic field lines. These electrons move at a substantial fraction of the speed of light and often generate radio emission via th...

14/04/2026

Solar radio bursts and their fine spectral structures contain key physical information related to plasma instabilities, high-energy particle acceleration, and other important processes. They therefore serve as an important observational means for studying solar activity and space weather. With the i...

31/03/2026

Solar radio emissions offer unique diagnostic insights into the solar corona. However, their dynamic and multiscale nature, along with variations spanning several orders of magnitude in intensity, pose significant observational challenges. To date, at gigahertz frequencies, MeerKAT (Jonas & MeerKAT....

17/03/2026

The acceleration of charged particles is an ubiquitous phenomenon in solar flares. Non-thermal electrons are especially probed by their hard X-ray (HXR) and radio emissions. Most flare analyses concern the impulsive flare phase, where the X-ray signatures are the most intense (i.e., the time range b...

03/03/2026

Solar radio bursts (SRBs) are some of the most interesting signatures of solar activity. Their correlation with large solar eruptions and well-documented disruption to technological infrastructure especially highlights their relevance (Temmer 2021; Li et al. 2024; Liang et al. 2024). As the volume o...