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Community of European Solar Radio Astronomers (CESRA)
@cesra.bsky.social
58 followers 260 following 59 posts
The Community of European Solar Radio Astronomers (CESRA) is an organization of scientists to stimulate research of the Sun by means of radio waves.
https://www.astro.gla.ac.uk/users/eduard/cesra/
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cesra.bsky.social
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
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...
www.astro.gla.ac.uk
February 7, 2026 at 7:17 AM
cesra.bsky.social
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
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...
www.astro.gla.ac.uk
February 6, 2026 at 6:33 AM
cesra.bsky.social
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...
#Astronomy #radioastronomy
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...
www.astro.gla.ac.uk
February 5, 2026 at 7:50 AM
cesra.bsky.social
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...
#astronomy #radioastronomy
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...
www.astro.gla.ac.uk
February 4, 2026 at 8:24 AM
cesra.bsky.social
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...
#Astronomy #radioastronomy
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 ...
www.astro.gla.ac.uk
February 3, 2026 at 8:10 AM
cesra.bsky.social
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...
#Astronomy #RadioAstronomy
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...
www.astro.gla.ac.uk
February 2, 2026 at 7:17 AM
cesra.bsky.social
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...
#Astronomy #Radioastronomy
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...
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February 1, 2026 at 7:16 AM
cesra.bsky.social
A possible new scenario for widespread solar energetic particle events by Nina Dresing et al. www.astro.gla.ac.uk/users/eduard...
#Astronomy
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...
www.astro.gla.ac.uk
January 31, 2026 at 8:20 AM
cesra.bsky.social
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...
#Astronomy #RadioAstronomy
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...
www.astro.gla.ac.uk
January 30, 2026 at 7:56 AM
cesra.bsky.social
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...
#Astronomy #RadioAstronomy
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...
www.astro.gla.ac.uk
January 29, 2026 at 10:21 AM
cesra.bsky.social
A New 6-15 GHz Solar Radio Observation System, by Lei Zhang et al. www.astro.gla.ac.uk/users/eduard...
#Astronomy #Radioastronomy
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...
www.astro.gla.ac.uk
January 28, 2026 at 7:21 AM
Reposted by Community of European Solar Radio Astronomers (CESRA)
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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
Figure 1 Figure 2 Figure 3 Figure 4
January 28, 2026 at 5:10 AM
cesra.bsky.social
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...
#astronomy #radioastronomy
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...
www.astro.gla.ac.uk
January 27, 2026 at 7:09 PM
cesra.bsky.social
Separating the effects of earthside and far side solar events by Silja Pohjolainen et al. www.astro.gla.ac.uk/users/eduard...
#Astronomy #radioastronomy
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...
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January 26, 2026 at 8:51 PM
cesra.bsky.social
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...
#astronomy #radioastronomy
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...
www.astro.gla.ac.uk
January 25, 2026 at 12:20 PM
cesra.bsky.social
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...
#Astronomy #radioastronomy
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,...
www.astro.gla.ac.uk
January 22, 2026 at 8:11 AM
cesra.bsky.social
An Interactive Visual Tool for the Anisotropic Scattering of Solar Radio Bursts by Daniel L. Clarkson et al www.astro.gla.ac.uk/users/eduard...
#Astronomy #radioastronomy
Solar Radio Astronomy - CESRA
The turbulent heliosphere has a significant effect on the observed characteristics of radio emission produced in, or viewed through, the solar atmosphere. In particular, radio-wave scattering on densi...
www.astro.gla.ac.uk
January 22, 2026 at 12:10 AM
cesra.bsky.social
Tracing Ion-Scale Turbulence and Energy Cascade Rate from the Solar Corona to 1 au by E. P. Kontar et al. www.astro.gla.ac.uk/users/eduard...
#Astronomy #RadioAstronomy
Solar Radio Astronomy - CESRA
The solar corona and solar wind are turbulent plasma environments where energy transfer from large-scale magnetohydrodynamic (MHD) fluctuations to smaller kinetic scales is thought to play a critical ...
www.astro.gla.ac.uk
January 20, 2026 at 12:56 PM
cesra.bsky.social
Weak Solar Radio Bursts from the Solar Wind Acceleration Region Observed by the Parker Solar Probe and Its Probable Emission Mechanism by Ling Chen et al. www.astro.gla.ac.uk/users/eduard...
#Astronomy
Solar Radio Astronomy - CESRA
The study of solar wind acceleration and coronal heating has been a major challenge in solar physics. The main difficulty is that the collisionless characteristic of high-temperature, thin, and fully ...
www.astro.gla.ac.uk
January 19, 2026 at 7:27 AM
cesra.bsky.social
Spectroscopic Imaging of the Sun with MeerKAT: Opening a New Frontier in Solar Physics by Kansabanik et al. www.astro.gla.ac.uk/users/eduard...
#Atronomy #RadioAstronomy
Solar Radio Astronomy - CESRA
Since the discovery of solar radio emission in the late 1940s, the Sun has been studied in great detail across a wide range of frequencies from a few tens of kHz to several hundreds of GHz. Solar radi...
www.astro.gla.ac.uk
January 17, 2026 at 2:58 PM
cesra.bsky.social
Solar Microwave Polarization Observed by the Newest and Oldest Solar Radio Telescopes by Masumi Shimojo www.astro.gla.ac.uk/users/eduard...
#Astronomy #RadioAstronomy 🧪
Solar Radio Astronomy - CESRA
Polarization, regardless of wavelength, is one of the key observables for understanding the solar atmosphere because it provides information about magnetic fields, and microwave polarization is also o...
www.astro.gla.ac.uk
January 16, 2026 at 8:25 AM
cesra.bsky.social
Data Release of Solar Radio Bursts observed by CBSm at the metric wavelength by Yao Chen et al. www.astro.gla.ac.uk/users/eduard...
#Astronomy
Solar Radio Astronomy - CESRA
Here we release the spectral data of solar radio bursts recorded by the Chashan Broadband Solar radio spectrograph (CBSm), located in the Chashan mountain (E122°.30, N36°.84) that is the southern tip ...
www.astro.gla.ac.uk
January 14, 2026 at 9:55 AM
cesra.bsky.social
Solar Microwave Polarization Observed by the Newest and Oldest Solar Radio Telescopes by Masumi Shimojo www.astro.gla.ac.uk/users/eduard...
#Astronomy #RadioAstronomy
Solar Radio Astronomy - CESRA
Polarization, regardless of wavelength, is one of the key observables for understanding the solar atmosphere because it provides information about magnetic fields, and microwave polarization is also o...
www.astro.gla.ac.uk
January 12, 2026 at 7:50 AM
cesra.bsky.social
Energetics of compressive waves in the solar corona by Francesco Azzollini et al www.astro.gla.ac.uk/users/eduard...
#Astronomy #RadioAstronomy
Solar Radio Astronomy - CESRA
Inelastic scattering off moving or oscillating density fluctuations leads to broadening of radio signals propagating in the solar corona and solar wind. Using an anisotropic density fluctuation model ...
www.astro.gla.ac.uk
January 10, 2026 at 2:38 PM
cesra.bsky.social
Time-Profile Study of Type III Solar Radio Bursts Using Parker Solar Probe by Tulsi Thapa and Yihua Yan www.astro.gla.ac.uk/users/eduard...
#Astronomy
Solar Radio Astronomy - CESRA
Type III solar radio bursts are frequent and powerful radio emissions caused by electron beams travelling through the solar corona into the interplanetary medium, providing valuable information about ...
www.astro.gla.ac.uk
January 9, 2026 at 8:21 AM