Community of European Solar Radio Astronomers (CESRA)

Solar Radio Astronomy - CESRA A solar radio burst (SRB) is the intense solar radio emission often related to a solar flare and one of the possibly extreme space weather events which may affect Earth’s ionosphere and signal propaga...

Trieste CALLISTO Station Setup and Observations of  Solar Radio Bursts by A. Marassi and C. Monstein www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA Filaments (or prominences) are “clouds” of cool (<104 K) material suspended in the solar corona by up to tens of megameters above the photosphere, and they can be broadly divided into quiescent filame...

Subarcsecond imaging of a solar active region filament with ALMA and IRIS by da Silva Santos et al.* www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA Practically all solar phenomena observed in radio wavelengths have their counterpart in other regions of the electromagnetic spectrum. Metric solar bursts are an exception to the above statement. Alth...

First detection of metric emission from a solar surge by Costas Alissandrakis et al.* www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA 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 esp...

Classification of Type II and Type III Solar Radio Bursts Using Transfer Learning by H. le Roux et al. www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA Filaments (or prominences) are “clouds” of cool (<104 K) material suspended in the solar corona by up to tens of megameters above the photosphere, and they can be broadly divided into quiescent filame...

Subarcsecond imaging of a solar active region filament with ALMA and IRIS by da Silva Santos et al.* www.astro.gla.ac.uk/users/eduard...
#astronomy #radioastronomy

Solar Radio Astronomy - CESRA Solar flares, the most powerful magnetic explosions in our solar system, are often accompanied by intense bursts of radio emission known as type III solar radio bursts. These bursts provide valuable c...

Flare Accelerated Electron Transport in Type III Solar Radio Bursts: large-scale transport and super-diffusive beam expansion by E. P. Kontar et al. www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA A solar radio burst (SRB) is the intense solar radio emission often related to a solar flare and one of the possibly extreme space weather events which may affect Earth’s ionosphere and signal propaga...

Trieste CALLISTO Station Setup and Observations of  Solar Radio Bursts by A. Marassi and C. Monstein www.astro.gla.ac.uk/users/eduard...
#Astronomy #RadioAstronomy

Solar Radio Astronomy - CESRA Type III bursts are usually described as a two-step process: energetic electrons excite Langmuir waves, which are then converted into radio emission near the plasma frequency (Ginzburg & Zhelezniakov ...

Plasma instability at the front of ejected electrons and Type III emission by V. Krasnoselskikh et al. www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA The plasma density and magnetic field in the upper solar corona and inner heliosphere are not sufficient to produce detectable bremsstrahlung hard X-ray or gyrosynchrotron microwave emissions, making ...

LOFAR size and shape measurements of solar metric radio burst sources by Gordovskyy et al www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA The (sub)millimeter radiation of solar flares, explosive events detected as brightenings across the electromagnetic spectrum, is poorly understood ( Krucker et al. 2013 ) . The major limit of the prev...

Flares detected in ALMA single-dish images by I. Skokic et al www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA The solar radio spikes can provide detailed information about plasma processes in solar flares on kinetic scales. Among them, the decimetric spikes belong to the most interesting ones because they are...

Narrowband Spikes Observed During the 13 June 2012 Flare in the 800 – 2000 MHz Range by Marian Karlicky et al www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA Investigating the generation mechanism for the stripes-pattern radio spectra is important to understand the dynamics of non-thermal electrons in several astronomical objects, including the Sun, Jupite...

Characteristics of stripes-pattern radio-emission sources by Khaled Alielden www.astro.gla.ac.uk/users/eduard...
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Tracing the Heliospheric Magnetic Field via Anisotropic Radio-Wave Scattering. Daniel L. Clarkson et. al. https://arxiv.org/abs/2503.22553

Solar Radio Astronomy - CESRA Practically all solar phenomena observed in radio wavelengths have their counterpart in other regions of the electromagnetic spectrum. Metric solar bursts are an exception to the above statement. Alth...

First detection of metric emission from a solar surge by Costas Alissandrakis et al.* www.astro.gla.ac.uk/users/eduard...
#Astronomy #RadioAstronomy

Solar Radio Astronomy - CESRA Comet 2I/Borisov was only the second interstellar object known to have entered the solar system. The highly eccentric, hyperbolic orbit of 2I/Borisov and its high inclination to the ecliptic plane dem...

Radio Scintillation Observations of the Plasma Tail of Interstellar Comet 2I/Borisov, by P K Manoharan et al.* www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA Solar radio bursts generated through the plasma emission mechanism produce radiation near the local plasma frequency (fundamental emission, hereafter, F) and double the plasma frequency (harmonic, her...

The frequency ratio and time delay of fundamental and harmonic components in solar radio bursts by X. Chen et al www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA Solar type II radio bursts appear in the spectrograph records as slowly drifting emission lanes from high to low frequencies. They are due to plasma oscillations caused by the electrons accelerated at...

Solar coronal density turbulence and magnetic field strength at the source regions of two successive metric type II radio bursts by Ramesh et. al. www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA Solar flares are known to be prolific electron accelerators, yet identifying the mechanism(s) for such efficient electron acceleration in magnetic reconnection events at the Sun (and similar astrophys...

Electron acceleration efficiency during the impulsive phase of a solar flare: X-ray and microwave observations by Kontar et al www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA Radioheliographs and wideband solar radio spectrographs are essential components of the Chinese Meridian Project (CMP)‐II (C. Wang et al., 2024) that aims to monitor the whole solar‐terrestrial chain ...

Solar Radio Wide‐Band Spectroscopy and Imaging Facilities of the Chinese Meridian Project Phase II by Yihua Yan et al. www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA One important task connected with the corona heating problem is exploring the physical mechanisms that produce, accelerate, and transport energetic particles in the upper corona. The magnetic connecti...

Temporal and Spatial Association Between Microwaves and Type III Bursts in the Upper Corona by Altyntsev et al. www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA Radio bursts are frequently emitted in the outer solar corona due to the acceleration of energetic electrons in solar flares and coronal mass ejections (CME). The shortest observed bursts are radio sp...

Solar Radio Spikes and Type IIIb Striae Manifestations Triggered by a Coronal Mass Ejection by Clarkson et al www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA A long-standing problem in solar energetic particle (SEP) studies is to pinpoint their source regions at the Sun. Potential contributions by both the flare and CME-driven shocks complicate the analysi...

A possible new scenario for widespread solar energetic particle events by Nina Dresing et al. www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA We are striving for more accurate coronal magnetography based on changes in radio polarization as microwaves cross magnetic field lines at nearly right angles. The theory of using quasi-transverse pro...

Radio measurements of coronal magnetic fields in fan-spine configurations on the Sun by B. Ryabov and A. Vrublevskis www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA Type II solar bursts are radio signatures of shock waves in the solar corona driven by solar flares or coronal mass ejections. Therefore, these bursts present complex spectral morphologies in solar dy...

Morphology of solar type II bursts caused by shock propagation through turbulent and inhomogeneous coronal plasma by A. Koval et al www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA In the decimeter to centimeter wavelength, solar radio emission during bursts are generally accepted to be generated by gyrosynchrotron. The typical gyrosynchrotron spectra present reverse-V shapes. A...

A New 6-15 GHz Solar Radio Observation System, by Lei Zhang et al. www.astro.gla.ac.uk/users/eduard...
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Signatures of Large-Scale Magnetic Field Disturbances and Switchbacks in Interplanetary Type III Radio Bursts. Daniel L. Clarkson et. al. https://arxiv.org/abs/2601.19687

Solar Radio Astronomy - CESRA Density turbulence in the solar corona and solar wind is evident via the properties of solar radio bursts; angular scattering-broadening of extra-solar radio sources observed through the solar atmosph...

Anisotropic density turbulence variation from the low corona to 1 au as deduced from solar radio observations by E. Kontar et al. www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA During times of high solar activity flares and coronal mass ejections (CMEs) occur close in time, sometimes even simultaneously, and it may be difficult to identify their source regions. Especially fa...

Separating the effects of earthside and far side solar events by Silja Pohjolainen et al. www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA Interplanetary solar radio type III bursts provide the means to remotely study and track energetic electrons propagating in the interplanetary medium. Due to the lack of direct radio source imaging, s...

Source positions of an interplanetary type III radio burst and anisotropic radio-wave scattering by X. Chen et al. www.astro.gla.ac.uk/users/eduard...
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Solar Radio Astronomy - CESRA Recent years, several new generation solar radio telescopes operating in the centimeter decimeter (dm-cm) wavelengths have emerged in the world, including the Mingantu Spectral Radioheliograph (MUSER,...

The physics of solar spectral imaging observations in dm-cm wavelengths and space weather by Tan et al. www.astro.gla.ac.uk/users/eduard...
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