Solar Radio Astronomy - CESRA Type II radio bursts, produced near the local plasma frequency and/or its harmonic by energetic electrons accelerated by shock waves moving outward through the inner heliosphere, have long been recogn...

Estimate of Plasma Temperatures across a CME-driven Shock from a Comparison between EUV and Radio Data by F. Frassati et al.* www.astro.gla.ac.uk/users/eduard...
#astronomy #radioastronomy

Figure 1

Figure 2

Figure 3

Figure 4

First Detailed MeerKAT Imaging Spectroscopy of a Solar Flare. Yingjie Luo (1) et. al. https://arxiv.org/abs/2602.05282

Solar Radio Astronomy - CESRA 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...

Dataset for Recognition and Detection Based on Solar Radio Spectrogram Data by Yan et al www.astro.gla.ac.uk/users/eduard...
#astronomy #radioastronomy

Solar Radio Astronomy - CESRA The Sun routinely produces energetic electrons in its outer atmosphere that subsequently travel through interplanetary space. These electron beams generate Langmuir waves in the background plasma, pro...

Langmuir wave motion observed in the most intense radio sources in the sky by H. Reid and E. Kontar www.astro.gla.ac.uk/users/eduard...
#astronomy #radioastronomy

Solar Radio Astronomy - CESRA 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, pos...

Technical Readiness of MeerKAT for Solar Observations and Initial Science Results by D. Kansabanik et al. www.astro.gla.ac.uk/users/eduard...
#radioastronomy

Solar Radio Astronomy - CESRA During encounter 2 of NASA’s PSP mission there was a large amount of radio activity and, in particular, a noise storm of frequent, small type III bursts from 31 March to 6 April 2019. Our aim is to in...

The active region source of a type III radio storm observed by Parker Solar Probe during encounter 2 by L. Harra et al* www.astro.gla.ac.uk/users/eduard...
#astronomy #radioastronomy

Solar Radio Astronomy - CESRA Solar radio spikes are short duration, narrowband radio bursts that are signature of the acceleration of non-thermal electrons in solar flares. They are observed over a wide range of frequencies from ...

First Frequency-time-resolved Imaging Spectroscopy Observations of Solar Radio Spikes by D. L. Clarkson et al.* www.astro.gla.ac.uk/users/eduard...
#astronomy #radioastronomy

Solar Radio Astronomy - CESRA Type II radio bursts are slow-drifting and long-lasting radio emission produced by nonthermal electrons accelerated at shocks propagating through the solar corona and interplanetary medium (Nelson & M...

Properties of High-Frequency Type II Radio Bursts and Their Relation to the Associated Coronal Mass Ejections by A.C. Umuhire et al.* www.astro.gla.ac.uk/users/eduard...
#astronomy

Solar Radio Astronomy - CESRA Solar type II bursts are sporadic emissions characterized by their narrow bandwidth and slow frequency drift in dynamic spectra ( Nelson & Melrose, 1985 ; Vršnak & Cliver 2008 ; Nindos et al. 2008 ; P...

Searching for optical/EUV counterparts of type IIs in a complex metric burst 
by Costas Alissandrakis et al.* www.astro.gla.ac.uk/users/eduard...
#astronomy #radioastronomy

Solar Radio Astronomy - CESRA The magnetic fields of the Sun govern the solar corona structure where the solar wind emanates and further accelerates supersonically. Therefore, the accurate observational data about the topology, an...

Radio Probing of Solar Wind Sources in Coronal Magnetic Fields  by A. Koval et al.* www.astro.gla.ac.uk/users/eduard...
#astronomy #radioastronomy

Solar Radio Astronomy - CESRA 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 concer...

Non-thermal energy release in the post-impulsive phase of the May 9, 2021 event by M. Zhang et al. www.astro.gla.ac.uk/users/eduard...
#Astronomy

Solar Radio Astronomy - CESRA For a mission that has just entered its primary science phase, Solar Orbiter has already produced many remarkable results. Released on December 14, 2021, a special issue of Astronomy and Astrophysics ...

Harvest of scientific results by Solar Orbiter Radio and Plasma Waves instrument by Milan Maksimovic www.astro.gla.ac.uk/users/eduard...
#astronomy #radioastronomy

Solar Radio Astronomy - CESRA Langmuir-Slow extraordinary mode (L-SE) waves have been routinely observed in the Solar wind and in Earth’s electron foreshock since the early age of the space exploration. They are intimately connect...

Langmuir-Slow Extraordinary Mode Magnetic Signature Observations with Parker Solar Probe by A. Larosa et al www.astro.gla.ac.uk/users/eduard...
#Astronomy

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...
#Astronomy #RadioAstronomy

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 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 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 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...
#Astronomy #RadioAstronomy

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...
#astronomy #radioastronomy

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...
#Astronomy #RadioAstronomy

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...
#astronomy #radioastronomy

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...
#Astronomy #radioastronomy

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...
#Astronomy #radioastronomy

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...
#Astronomy #RadioAstronomy

Figure 1

Figure 2

Figure 3

Figure 4

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...
#Astronomy #radioastronomy

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...
#astronomy #radioastronomy