New Insights from Imaging Spectroscopy of Solar Radio Emission

DE Gary - Annual Review of Astronomy and Astrophysics, 2023 - annualreviews.org
Newly available high-resolution imaging of solar radio emission at many closely spaced
frequencies and times provides new physical insight into the processes, structure, and …

Fine Structure of Solar Metric Radio bursts: ARTEMIS-IV/JLS and NRH Observations

C Alissandrakis, A Hillaris, C Bouratzis, S Armatas - Universe, 2023 - mdpi.com
Radio bursts provide important diagnostics of energetic phenomena of the Sun. In particular,
bursts in decimetric and metric wavelengths probe the physical conditions and the energy …

Solar coronal density turbulence and magnetic field strength at the source regions of two successive metric type II radio bursts

R Ramesh, C Kathiravan, A Kumari - The Astrophysical Journal, 2023 - iopscience.iop.org
We report spectral and polarimeter observations of two weak, low-frequency (≈ 85–60 MHz)
solar coronal type II radio bursts that occurred on 2020 May 29 within a time interval≈ 2 …

A new component from the quiet Sun from radio to gamma rays: Synchrotron radiation by galactic cosmic-ray electrons

E Orlando, A Strong - The Astrophysical Journal, 2023 - iopscience.iop.org
The quiet Sun, ie, in its nonflaring state or nonflaring regions, emits thermal radiation from
radio to ultraviolet. The quiet Sun also produces nonthermal radiation observed in gamma …

Study of solar brightness profiles in the 18–26 GHz frequency range with INAF radio telescopes-I. Solar radius

M Marongiu, A Pellizzoni, S Mulas, S Righini… - Astronomy & …, 2024 - aanda.org
Context. The Sun is an extraordinary workbench, on which several fundamental
astronomical parameters can be measured with high precision. Among these parameters …

Study of solar brightness profiles in the 18–26 GHz frequency range with INAF radio telescopes-II. Evidence of coronal emission

M Marongiu, A Pellizzoni, S Righini, S Mulas… - Astronomy & …, 2024 - aanda.org
Context. One of the most important objectives of solar physics is to gain a physical
understanding of the solar atmosphere, whose structure can also be described in terms of …

Multiple Regions of Nonthermal Quasiperiodic Pulsations during the Impulsive Phase of a Solar Flare

Y Luo, B Chen, S Yu, M Battaglia… - The Astrophysical …, 2022 - iopscience.iop.org
Flare-associated quasiperiodic pulsations (QPPs) in radio and X-ray wavelengths,
particularly those related to nonthermal electrons, contain important information about the …

Polarization Observations of a Split-band Type II Radio Burst from the Solar Corona

R Ramesh, C Kathiravan - The Astrophysical Journal, 2022 - iopscience.iop.org
Using temporal observations of circular polarized harmonic plasma emission from a split-
band type II solar radio burst at 80 MHz, we separately estimated the coronal magnetic field …

Coronal diagnostics of solar type III radio bursts using LOFAR and PSP observations

M Nedal, K Kozarev, P Zhang, P Zucca - Astronomy & Astrophysics, 2023 - aanda.org
Context. Solar type III radio bursts are common phenomena, recognized as the result of
accelerated electron beams propagating through the solar corona. These bursts are of …

Radio Studies of the Middle Corona: Current State and New Prospects in the Next Decade

B Chen, JE Kooi, DB Wexler, DE Gary, S Yu… - arXiv preprint arXiv …, 2023 - arxiv.org
The" middle corona," defined by West et al.(2022) as the region between~ 1.5-6 solar radii,
is a critical transition region that connects the highly structured lower corona to the outer …