Imaging of the quiet sun in the frequency range of 20–80 MHz
Radio emission of the quiet Sun is considered to be due to thermal bremsstrahlung emission
of the hot solar atmosphere. The properties of the quiet Sun in the microwave band have …
of the hot solar atmosphere. The properties of the quiet Sun in the microwave band have …
Effects of scattering on radio emission from the quiet Sun at low frequencies
G Thejappa, RJ MacDowall - The Astrophysical Journal, 2008 - iopscience.iop.org
The observations of the quiet Sun at meter and decameter wavelengths show that its
brightness temperatures can be∼ 1 order of magnitude lower than the expected values of …
brightness temperatures can be∼ 1 order of magnitude lower than the expected values of …
Solar coronal density turbulence and magnetic field strength at the source regions of two successive metric type II radio bursts
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 …
solar coronal type II radio bursts that occurred on 2020 May 29 within a time interval≈ 2 …
An estimate of the magnetic field strength associated with a solar coronal mass ejection from low frequency radio observations
We report ground based, low frequency heliograph (80 MHz), spectral (85–35 MHz), and
polarimeter (80 and 40 MHz) observations of drifting, non-thermal radio continuum …
polarimeter (80 and 40 MHz) observations of drifting, non-thermal radio continuum …
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 …
astronomical parameters can be measured with high precision. Among these parameters …
New evidence for a coronal mass ejection-driven high frequency type II burst near the Sun
We report observations of the high frequency type II radio burst (≈ 430–30 MHz) that
occurred in the solar corona on 2015 November 4. The drift rate of the burst, estimated close …
occurred in the solar corona on 2015 November 4. The drift rate of the burst, estimated close …
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 …
understanding of the solar atmosphere, whose structure can also be described in terms of …
Circular Polarization Observations of Type II Solar Radio Bursts and the Coronal Magnetic Field
R Ramesh, C Kathiravan… - The Astrophysical …, 2022 - iopscience.iop.org
It is well known that magnetic field strength (B) in the solar corona can be calculated using
the Alfvén Mach number (MA) and Alfvén speed (v A) of the magnetohydrodynamic shock …
the Alfvén Mach number (MA) and Alfvén speed (v A) of the magnetohydrodynamic shock …
Direct estimates of the solar coronal magnetic field using contemporaneous extreme-ultraviolet, radio, and white-light observations
We report a solar coronal split-band type II radio burst that was observed on 2016 March 16
with the Gauribidanur Radio Spectro-Polarimeter in the frequency range≈ 90–50 MHz, and …
with the Gauribidanur Radio Spectro-Polarimeter in the frequency range≈ 90–50 MHz, and …
Solar type IIIb radio bursts as tracers for electron density fluctuations in the corona
V Mugundhan, K Hariharan, R Ramesh - Solar Physics, 2017 - Springer
We present an estimation of the electron density modulation index (δ N e N e δN_eN_e) for
the first time using solar type IIIb radio burst observations. The mean value of δ N e N e …
the first time using solar type IIIb radio burst observations. The mean value of δ N e N e …