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Related papers: Solar type III bursts with high-frequency cut-off

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A study and classification of super-short structures (SSSs) recorded during metric type IV bursts is presented. The most important property of SSSs is their duration, at half power ranging from 4-50 ms, what is up to 10 times shorter than…

Solar and Stellar Astrophysics · Physics 2010-09-24 J. Magdalenić , A. Hillaris , P. Zlobec , B. Vršnak

Solar radio type II bursts serve as early indicators of incoming geo-effective space weather events such as coronal mass ejections (CMEs). In order to investigate the origin of high-frequency type II bursts (HF type II bursts), we have…

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…

The phenomena observed at the Sun have a variety of unique radio signatures that can be used to diagnose the processes in the solar atmosphere. The insights provided by radio obervations are further enhanced when they are combined with…

Solar and Stellar Astrophysics · Physics 2018-06-26 E. P. Kontar , A. Nindos

Electron beams accelerated in solar flares and escaping from the Sun along open magnetic field lines can trigger intense radio emissions known as type III solar radio bursts. Utilizing observations by Parker Solar Probe (PSP), STEREO-A…

Solar and Stellar Astrophysics · Physics 2025-10-02 Francesco Azzollini , Eduard P. Kontar

Radio U-bursts and J-bursts are signatures of electron beams propagating along magnetic loops confined to the corona. The more commonly observed type III radio bursts are signatures of electron beams propagating along magnetic loops that…

Solar and Stellar Astrophysics · Physics 2017-11-01 Hamish A. S. Reid , Eduard P. Kontar

Type III solar radio bursts are generated by streams of energetic electrons accelerated at the Sun during periods of the solar activity. The generation occurs in two steps. Initially, electron beams generate electrostatic Langmuir waves and…

Solar and Stellar Astrophysics · Physics 2018-12-27 Vladimir Krasnoselskikh , Andrii Voshchepynets , Milan Maksimovic

Understanding the properties of type III radio bursts in the solar corona and interplanetary space is one of the best ways to remotely deduce the characteristics of solar accelerated electron beams and the solar wind plasma. One feature of…

Solar and Stellar Astrophysics · Physics 2015-05-13 Hamish A. S. Reid , Eduard P. Kontar

Using the Wind/WAVES radio observations from 2010-2013, we present an analysis of the 123 decametric-hectometric (DH) type II solar radio bursts during this period, the associated type III burst properties, and their correlation with solar…

Solar and Stellar Astrophysics · Physics 2015-08-19 L. M. Winter , K. Ledbetter

Using centimeter wave and decimeter wave solar radio spectral observations of the flares of November 18, 2003 and September 12, 2004, we have discussed two type II like bursts at the meter waves. The radio bursts show that the ordinary…

Solar and Stellar Astrophysics · Physics 2020-09-30 Valery Fomichev , Gennady Chernov

Type-I bursts (i.e. noise storms) are the earliest-known type of solar radio emission at the metre wavelength. They are believed to be excited by non-thermal energetic electrons accelerated in the corona. The underlying dynamic process and…

Solar and Stellar Astrophysics · Physics 2017-06-28 Chuanyang Li , Yao Chen , Bing Wang , Guiping Ruan , Shiwei Feng , Guohui Du , Xiangliang Kong

We discuss an intriguing type II radio burst that occurred on 2011 March 27. The dynamic spectrum was featured by a sudden break at about 43 MHz on the well-observed harmonic branch. Before the break, the spectrum drifted gradually with a…

Solar and Stellar Astrophysics · Physics 2015-06-04 Xiang-Liang Kong , Yao Chen , Gang Li , Shi-Wei Feng , Hong-Qiang Song , Fan Guo , Fang-Ran Jiao

The analysis of narrowband drifting of type III-like structures in radio bursts dynamic spectra allows to obtain unique information about primary energy release mechanisms in solar flares. The SSRT spatially resolved images and a high…

Solar and Stellar Astrophysics · Physics 2015-06-05 N. S. Meshalkina , A. T. Altyntsev , D. A. Zhdanov , S. V. Lesovoi , A. A. Kochanov , Yan Yihua , Tan Chengming

On November 4th 2015 secondary air traffic control radar was strongly disturbed in Sweden and some other European countries. The disturbances occurred when the radar antennas were pointing at the Sun. In this paper, we show that the…

Solar and Stellar Astrophysics · Physics 2018-08-22 C. Marqué , K. -L. Klein , C. Monstein , H. Opgenoorth , A. Pulkkinen , S. Buchert , S. Krucker , R. Van Hoof , P. Thulesen

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

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

Large solar energetic particle (SEP) events are thought to originate from the shocks driven by fast coronal mass ejections (CMEs) and thus generally accompanied by type II radio bursts. However, a significant proportion of type II radio…

Solar and Stellar Astrophysics · Physics 2026-04-23 Xuchun Duan , Ting Li , Yingli Cui , Yijun Hou , Chuan Li , Nicolas Wijsen , Zelong Jiang , Yihua Yan , Suli Ma , Zheng Sun

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…

Solar type V radio bursts are associated with type III bursts. Several processes have been proposed to interpret the association, electron distribution, and emission. We present the observation of a unique type V event observed by…

Solar and Stellar Astrophysics · Physics 2024-12-03 Arnold O. Benz , Clemens R. Huber , Vincenzo Timmel , Christian Monstein

Solar type II radio bursts are the signature of particle acceleration by shock waves in the solar corona and interplanetary medium. The shocks originate in solar eruptions involving coronal mass ejections (CMEs) moving at super-Alfvenic…

Solar and Stellar Astrophysics · Physics 2019-12-17 Nat Gopalswamy , Pertti Mäkelä , Seiji Yashiro