105 citations · 372 across the 20 of their papers we have counts for
21 papers
The SKA as a Probe of Heliospheric Turbulence and Radio-wave Propagation Effects
Nicolina Chrysaphi, Eduard P. Kontar, Hamish A. S. Reid +3
Density turbulence in the heliosphere can impact traversing radio photons originating from anywhere in the universe, leading to distortions of both the spectroscopic and imaging pr…
Solar Radio Burst Fine Structures
Eduard Kontar, Daniel Clarkson, Hamish Reid +5
Solar radio bursts exhibit intricate variability in time, space, and frequency, often displaying a rich variety of fine frequency-time structures such as spikes, drift pairs, stria…
Tracing the Heliospheric Magnetic Field via Anisotropic Radio-Wave Scattering
Daniel L. Clarkson, Eduard P. Kontar, Nicolina Chrysaphi +4
Astrophysical radio sources are embedded in turbulent magnetised environments. In the 1 MHz sky, solar radio bursts are the brightest sources, produced by electrons travelling alon…
Electron Beam Propagation and Radio-Wave Scattering in the Inner Heliosphere using Five Spacecraft
Luis Alberto Cañizares, Sam T. Badman, Nicolina Chrysaphi +4
Solar energetic particles such as electrons can be accelerated to mildly-relativistic velocities in the solar corona. These electrons travel through the turbulent corona generating…
Temporally resolved Type III solar radio bursts in the frequency range 3-13 MHz
Antonio Vecchio, Milan Maksimovic, Nicolina Chrysaphi +2
Radio observations from space allow to characterize solar radio bursts below the ionospheric cutoff, which are otherwise inaccessible, but suffer from low, insufficient temporal re…
Plasma motions and compressive wave energetics in the solar corona and solar wind from radio wave scattering observations
Francesco Azzollini, A. Gordon Emslie, Daniel L. Clarkson +2
Radio signals propagating via the solar corona and solar wind are significantly affected by compressive waves, impacting properties of solar bursts as well as sources viewed throug…
First determination of the angular dependence of rise and decay times of solar radio bursts using multi-spacecraft observations
Nicolina Chrysaphi, Milan Maksimovic, Eduard P. Kontar +3
Radio photons interact with anisotropic density fluctuations in the heliosphere, which can alter their trajectory and influence properties deduced from observations. This is partic…
Acceleration and Release of Solar Energetic Particles Associated with a Coronal Shock on 2021 September 28 Observed by Four Spacecraft
Bin Zhuang, Noé Lugaz, David Lario +5
Extreme ultraviolet (EUV) waves are thought to be the propagating footprint of the shock on the solar surface. One of the key questions in SEP research is the timing of the SEP rel…
An Anisotropic Density Turbulence Model from the Sun to 1 au Derived From Radio Observations
Eduard P. Kontar, A. Gordon Emslie, Daniel L. Clarkson +5
Solar radio bursts are strongly affected by radio-wave scattering on density inhomogeneities, changing their observed time characteristics, sizes, and positions. The same turbulenc…
Source positions of an interplanetary type III radio burst and anisotropic radio-wave scattering
Xingyao Chen, Eduard P. Kontar, Nicolina Chrysaphi +7
Interplanetary solar radio type III bursts provide the means for remotely studying and tracking energetic electrons propagating in the interplanetary medium. Due to the lack of dir…
Solar Radio Spikes and Type IIIb Striae Manifestations of Sub-second Electron Acceleration Triggered by a Coronal Mass Ejection
Daniel L. Clarkson, Eduard P. Kontar, Nicole Vilmer +3
Understanding electron acceleration associated with magnetic energy release at sub-second scales presents a major challenges in solar physics. Solar radio spikes observed as sub-se…
The frequency ratio and time delay of solar radio emissions with fundamental and harmonic components
Xingyao Chen, Eduard P. Kontar, Daniel L. Clarkson +1
Solar radio bursts generated through the plasma emission mechanism produce radiation near the local plasma frequency (fundamental emission) and double the plasma frequency (harmoni…
Sizes and shapes of sources in solar metric radio bursts
M. Gordovskyy, E. P. Kontar, D. L. Clarkson +2
Metric and decametric radio-emissions from the Sun are the only direct source of information about the dynamics of non-thermal electrons in the upper corona. In addition, the combi…
Simulations of radio-wave anisotropic scattering to interpret type III radio bursts measurements by Solar Orbiter, Parker Solar Probe, STEREO and Wind
S. Musset, M. Maksimovic, E. Kontar +9
We use multi-spacecraft observations of invididual type III radio bursts in order to calculate the directivity of the radio emission, to be compared to the results of ray-tracing s…
First Frequency-Time-Resolved Imaging Spectroscopy Observations of Solar Radio Spikes
Daniel L. Clarkson, Eduard P. Kontar, Mykola Gordovskyy +2
Solar radio spikes are short duration and narrow bandwidth fine structures in dynamic spectra observed from GHz to tens of MHz range. Their very short duration and narrow frequency…
Fine structures of solar radio bursts: origins and radio-wave propagation effects
Nicolina Chrysaphi
The abstract is available at: http://dx.doi.org/10.5525/gla.thesis.82010
Sub-second time evolution of Type III solar radio burst sources at fundamental and harmonic frequencies
Xingyao Chen, Eduard P. Kontar, Nicolina Chrysaphi +4
Recent developments in astronomical radio telescopes opened new opportunities in imaging and spectroscopy of solar radio bursts at sub-second timescales. Imaging in narrow frequenc…
Radio Echo in the Turbulent Corona and Simulations of Solar Drift-Pair Radio Bursts
Alexey A. Kuznetsov, Nicolina Chrysaphi, Eduard P. Kontar +1
Drift-pair bursts are an unusual type of solar low-frequency radio emission, which appear in the dynamic spectra as two parallel drifting bright stripes separated in time. Recent i…
First Observation of a Type II Solar Radio Burst Transitioning Between a Stationary and Drifting State
Nicolina Chrysaphi, Hamish A. S. Reid, Eduard P. Kontar
Standing shocks are believed to be responsible for stationary Type II solar radio bursts, whereas drifting Type II bursts are excited by moving shocks often related to coronal mass…
Anisotropic Radio-Wave Scattering and the Interpretation of Solar Radio Emission Observations
Eduard P. Kontar, Xingyao Chen, Nicolina Chrysaphi +6
The observed properties (i.e., source size, source position, time duration, decay time) of solar radio emission produced through plasma processes near the local plasma frequency, a…
CME-driven Shock and Type II Solar Radio Burst Band Splitting
Nicolina Chrysaphi, Eduard P. Kontar, Gordon D. Holman +1
Coronal Mass Ejections (CMEs) are believed to be effective in producing shocks in the solar corona and the interplanetary space. One of the important signatures of shocks and shock…