First radio evidence for impulsive heating contribution to the quiet solar corona
This Letter explores the relevance of nanoflare-based models for heating the quiet Sun
corona. Using meterwave data from the Murchison Widefield Array, we present the first …
corona. Using meterwave data from the Murchison Widefield Array, we present the first …
Detection of ubiquitous weak and impulsive nonthermal emissions from the solar corona
A ubiquitous presence of weak energy releases is one of the most promising hypotheses to
explain coronal heating, referred to as the nanoflare hypothesis. The accelerated electrons …
explain coronal heating, referred to as the nanoflare hypothesis. The accelerated electrons …
The low-frequency solar corona in circular polarization
We present spectropolarimetric imaging observations of the solar corona at low frequencies
(80–240 MHz) using the Murchison Widefield Array (MWA). These images are the first of …
(80–240 MHz) using the Murchison Widefield Array (MWA). These images are the first of …
Exploring the circular polarisation of low–frequency solar radio bursts with LOFAR
The Sun is an active star that often produces numerous bursts of electromagnetic radiation
at radio wavelengths. Low frequency radio bursts have recently been brought back to light …
at radio wavelengths. Low frequency radio bursts have recently been brought back to light …
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 …
Quantifying weak nonthermal solar radio emission at low radio frequencies
The recent availability of fine-grained high-sensitivity data from the new generation of low
radio frequency instruments such as the Murchison Widefield Array (MWA) has opened up …
radio frequency instruments such as the Murchison Widefield Array (MWA) has opened up …
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 …
A search for the counterparts of quiet-sun radio transients in extreme ultraviolet data
S Mondal - Solar Physics, 2021 - Springer
Nonthermal radio transients from the quiet Sun have been recently discovered and it has
been hypothesized using rough calculations that they might be important for coronal …
been hypothesized using rough calculations that they might be important for coronal …
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 …
Wavelet-based characterization of small-scale solar emission features at low radio frequencies
Low radio frequency solar observations using the Murchison Widefield Array have recently
revealed the presence of numerous weak short-lived narrowband emission features, even …
revealed the presence of numerous weak short-lived narrowband emission features, even …