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 …
A butterfly diagram and carrington maps for century-long Ca II K spectroheliograms from the Kodaikanal observatory
S Chatterjee, D Banerjee… - The Astrophysical Journal, 2016 - iopscience.iop.org
ABSTRACT The century-long (1907–2007) Ca ii K spectroheliograms from the Kodaikanal
Solar Observatory (KSO) are calibrated, processed, and analyzed to follow the evolution of …
Solar Observatory (KSO) are calibrated, processed, and analyzed to follow the evolution of …
Strength of the solar coronal magnetic field–a comparison of independent estimates using contemporaneous radio and white-light observations
We estimated the coronal magnetic field strength (BB) during the 23 July 2016 coronal mass
ejection (CME) event using i) the flux rope structure of the CME in the white-light …
ejection (CME) event using i) the flux rope structure of the CME in the white-light …
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 …
Gauribidanur low-frequency solar spectrograph
A new radio spectrograph, dedicated to observe the Sun, has been recently commissioned
by the Indian Institute of Astrophysics (IIA) at the Gauribidanur Radio Observatory, about 100 …
by the Indian Institute of Astrophysics (IIA) at the Gauribidanur Radio Observatory, about 100 …
The location of solar metric type II radio bursts with respect to the associated coronal mass ejections
R Ramesh, MA Lakshmi, C Kathiravan… - The Astrophysical …, 2012 - iopscience.iop.org
Forty-one solar type II radio bursts located close to the solar limb (projected radial distance
r≳ 0.8 R☉) were observed at 109 MHz by the radioheliograph at the Gauribidanur …
r≳ 0.8 R☉) were observed at 109 MHz by the radioheliograph at the Gauribidanur …
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 …
New results from the spectral observations of solar coronal type II radio bursts
R Ramesh, C Kathiravan… - The Astrophysical …, 2022 - iopscience.iop.org
We carried out a statistical study of twenty-six type II radio bursts from the Sun observed with
the Gauribidanur Low-frequency Solar Spectrograph in the frequency range 85–35 MHz …
the Gauribidanur Low-frequency Solar Spectrograph in the frequency range 85–35 MHz …