Imaging spectroscopy of solar radio burst fine structures

EP Kontar, S Yu, AA Kuznetsov, AG Emslie… - Nature …, 2017 - nature.com
Solar radio observations provide a unique diagnostic of the outer solar atmosphere.
However, the inhomogeneous turbulent corona strongly affects the propagation of the …

LOFAR observations of a jet-driven piston shock in the low solar corona

CA Maguire, EP Carley, P Zucca, N Vilmer… - The Astrophysical …, 2021 - iopscience.iop.org
The Sun produces highly dynamic and eruptive events that can drive shocks through the
corona. These shocks can accelerate electrons, which result in plasma emission in the form …

Type III solar radio burst source region splitting due to a quasi-separatrix layer

PI McCauley, IH Cairns, J Morgan… - The Astrophysical …, 2017 - iopscience.iop.org
Abstract We present low-frequency (80–240 MHz) radio imaging of type III solar radio bursts
observed by the Murchison Widefield Array on 2015 September 21. The source region for …

Propagation effects in quiet sun observations at meter wavelengths

R Sharma, D Oberoi - The Astrophysical Journal, 2020 - iopscience.iop.org
Quiet Sun meterwave emission arises from thermal bremsstrahlung in the MK corona, and
can potentially be a rich source of coronal diagnostics. On its way to the observer, it gets …

Densities probed by coronal type III radio burst imaging

PI McCauley, IH Cairns, J Morgan - Solar Physics, 2018 - Springer
We present coronal density profiles derived from low-frequency (80–240 MHz) imaging of
three Type III solar radio bursts observed at the limb by the Murchison Widefield Array …

Turbulent proton heating rate in the solar wind from 5–45 r⊙

KS Raja, P Subramanian, M Ingale… - The Astrophysical …, 2021 - iopscience.iop.org
Various remote sensing observations have been used so far to probe the turbulent
properties of the solar wind. Using the recently reported density modulation indices that are …

LOFAR observations of radio burst source sizes and scattering in the solar corona

PC Murphy, EP Carley, AM Ryan, P Zucca… - Astronomy & …, 2021 - aanda.org
Low frequency radio wave scattering and refraction can have a dramatic effect on the
observed size and position of radio sources in the solar corona. The scattering and …

Preparing for solar and heliospheric science with the SKAO: An Indian perspective

D Oberoi, SK Bisoi, KS Raja, D Kansabanik… - Journal of Astrophysics …, 2023 - Springer
Abstract The Square Kilometre Array Observatory (SKAO) is perhaps the most ambitious
radio telescope envisaged yet. It will enable unprecedented studies of the Sun, corona and …

On the relative brightness of coronal holes at low frequencies

MM Rahman, PI McCauley, IH Cairns - Solar Physics, 2019 - Springer
Abstract We present low-frequency (80–240 MHz) radio observations of coronal holes (CHs)
made with the Murchison Widefield Array (MWA). CHs are expected to be dark structures …

Plasma Motions and Compressive Wave Energetics in the Solar Corona and Solar Wind from Radio Wave Scattering Observations

F Azzollini, AG Emslie, DL Clarkson… - The Astrophysical …, 2024 - iopscience.iop.org
Radio signals propagating via the solar corona and solar wind are significantly affected by
compressive waves, impacting the properties of solar bursts as well as sources viewed …