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 …
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 …
A Kumari, R Ramesh, C Kathiravan… - The Astrophysical …, 2017 - iopscience.iop.org
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 …
A Kumari, DE Morosan, EKJ Kilpua - The Astrophysical Journal, 2021 - iopscience.iop.org
Solar activities, in particular coronal mass ejections (CMEs), are often accompanied by bursts of radiation at meter wavelengths. Some of these bursts have a long duration and …
P Kishore, C Kathiravan, R Ramesh, M Rajalingam… - Solar Physics, 2014 - Springer
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 …
A Kumari, R Ramesh, C Kathiravan… - The Astrophysical …, 2019 - iopscience.iop.org
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 …
V Vasanth, Y Chen, S Feng, S Ma, G Du… - The Astrophysical …, 2016 - iopscience.iop.org
ABSTRACT Hot-channel (HC) structure, observed in the high-temperature passbands of the Atmospheric Imaging Assembly/Solar Dynamic Observatory, is regarded as one candidate …
Abstract The Square Kilometre Array (SKA) will be the largest radio telescope ever built, aiming to provide collecting area larger than 1 km 2. The SKA will have two independent …
K Hariharan, R Ramesh, C Kathiravan - Solar Physics, 2015 - Springer
We report ground-based radio spectral and polarimeter observations of two successive split- band Type-II bursts that occurred on 20 February 2014 at low frequencies (< 100 MHz …