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Related papers: Structured type III radio bursts observed in inter…

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We have performed statistical analysis of a large number of Type III radio bursts observed by STEREO between May 2007 and February 2013. Only intense, simple, and isolated cases have been included in our data set. We have focused on the…

Solar and Stellar Astrophysics · Physics 2015-06-23 Vratislav Krupar , Milan Maksimovic , Ondrej Santolik , Baptiste Cecconi , Oksana Kruparova

Type III radio bursts are not only the most intense but also the most frequently observed solar radio bursts. However, a number of their defining features remain poorly understood. Observational limitations, such as a lack of sufficient…

Solar and Stellar Astrophysics · Physics 2023-09-13 Immanuel Christopher Jebaraj , Vladimir Krasnoselskikh , Marc Pulupa , Jasmina Magdalenic , Stuart Bale

Recent developments in astronomical radio telescopes opened new opportunities in imaging and spectroscopy of solar radio bursts at sub-second timescales. Imaging in narrow frequency bands has revealed temporal variations in the positions…

Solar and Stellar Astrophysics · Physics 2020-12-16 Xingyao Chen , Eduard P. Kontar , Nicolina Chrysaphi , Natasha L. S. Jeffrey , Mykola Gordovskyy , Yihua Yan , Baolin Tan

Solar radio emission features a large number of fine structures demonstrating great variability in frequency and time. We present spatially resolved spectral radio observations of type IIIb bursts in the $30-80$ MHz range made by the Low…

Solar and Stellar Astrophysics · Physics 2018-08-22 I. N. Sharykin , E. P. Kontar , A. A. Kuznetsov

Observational detection of quasi-periodic drifting fine structures in a type III radio burst associated with a solar flare SOL2015-04-16T11:22, with Low Frequency Array, is presented. Although similar modulations of the type III emission…

Solar and Stellar Astrophysics · Physics 2018-07-11 Dmitrii Y. Kolotkov , Valery M. Nakariakov , Eduard P. Kontar

Type III bursts and hard X-rays are both produced by flare energetic electron beams. The link between both emissions has been investigated in many previous studies, but no statistical studies have compared both coronal and interplanetary…

Solar and Stellar Astrophysics · Physics 2017-01-04 Hamish A. S. Reid , Nicole Vilmer

Solar type III radio bursts contain a wealth of information about the dynamics of electron beams in the solar corona and the inner heliosphere; currently unobtainable through other means. However, the motion of different regions of an…

Solar and Stellar Astrophysics · Physics 2018-06-20 Hamish A. S. Reid , Eduard P. Kontar

The observed properties (i.e., source size, source position, time duration, decay time) of solar radio emission produced through plasma processes near the local plasma frequency, and hence the interpretation of solar radio bursts, are…

Radio observations from space allow to characterize solar radio bursts below the ionospheric cutoff, which are otherwise inaccessible, but suffer from low, insufficient temporal resolution. In this Letter we present novel, high-temporal…

Solar and Stellar Astrophysics · Physics 2024-10-25 Antonio Vecchio , Milan Maksimovic , Nicolina Chrysaphi , Eduard P. Kontar , Vratislav Krupar

As is well known, CME propagation often results in the fragmentation of the solar atmosphere on smaller regions of density (magnetic field) enhancement (depletion). It is expected that this type of fragmentation may have radio signatures.…

Solar and Stellar Astrophysics · Physics 2019-05-15 G. Dididze , B. M. Shergelashvili , V. N. Melnik , V. V. Dorovskyy , A. I. Brazhenko , S. Poedts , T. V. Zaqarashvili , M. Khodachenko

Solar type III radio bursts are generated by beams of energetic electrons that travel along open magnetic field lines through the corona and into interplanetary space. However, understanding the source of these electrons and how they escape…

Solar and Stellar Astrophysics · Physics 2023-07-20 Meiqi Wang , Bin Chen , Sijie Yu , Dale E. Gary , Jeongwoo Lee , Haimin Wang , Christina Cohen

We present meter wave solar radio spectra of the highest spectrotemporal resolution achieved to date. The observations, obtained with the first station of the Long Wavelength Array (LWA1), show unprecedented detail of solar emissions across…

Solar and Stellar Astrophysics · Physics 2015-11-04 Samuel Tun Beltran , Sean Cutchin , Stephen White

The spatial association of narrow band metric radio spikes with type III bursts is analyzed. The analysis addresses the question of a possible causal relation between the spike emission and the acceleration of the energetic electrons…

Astrophysics · Physics 2009-11-06 G. Paesold , A. O. Benz , K. -L. Klein , N. Vilmer

Type III solar radio storms, observed at frequencies below approximately 16 MHz by space borne radio experiments, correspond to the quasi-continuous, bursty emission of electron beams onto open field lines above active regions. The…

Solar and Stellar Astrophysics · Physics 2015-05-14 J. P. Eastwood , M. S. Wheatland , H. S. Hudson , S. Krucker , S. D. Bale , M. Maksimovic , K. Goetz , J. -L. Bougeret

Context. Solar radio bursts originate mainly from high energy electrons accelerated in solar eruptions like solar flares, jets, and coronal mass ejections. A subcategory of solar radio bursts with short time duration may be used as a proxy…

Metrewave solar type-III radio bursts offer a unique means to study the properties of turbulence across the coronal heights.Theoretical models have shown that the apparent intensity and size of the burst sources evolve at sub-second scales…

Solar and Stellar Astrophysics · Physics 2021-11-24 Atul Mohan

Understanding electron acceleration associated with magnetic energy release at sub-second scales presents a major challenges in solar physics. Solar radio spikes observed as sub-second, narrow bandwidth bursts with…

Solar and Stellar Astrophysics · Physics 2023-04-06 Daniel L. Clarkson , Eduard P. Kontar , Nicole Vilmer , Mykola Gordovskyy , Xingyao Chen , Nicolina Chrysaphi

Starting from 1960s Type III-like bursts (Type III bursts with high drift rates) in a wide frequency range from 300 to 950MHz have been observed. These new bursts observed at certain frequency being compared to the usual Type III bursts at…

We report and examine the observation of an unusual and rare in-situ electron observation associated with a solar type III radio burst on 24 December 1996. This radio event was accompanied by high energy electrons, measured by the Solid…

We investigate the conditions under which small scale energy release events in the low corona gave rise to strong interplanetary (IP) type III bursts. We analyze observations of three tiny events, detected by the Nan\c cay Radio Heliograph…

Solar and Stellar Astrophysics · Physics 2015-10-07 C. E. Alissandrakis , A. Nindos , S. Patsourakos , A. Kontogeorgos , P. Tsitsipis