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This paper presents a detailed study of the type II solar radio burst that occurred on 06 March 2014 using combined data analysis. It is a classical radio event consisting of type III radio burst and a following type II radio burst in the…

Solar and Stellar Astrophysics · Physics 2024-04-02 V. Vasanth

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

Context: Solar eruptions, such as coronal mass ejections (CMEs), are often accompanied by accelerated electrons that can in turn emit radiation at radio wavelengths. This radiation is observed as solar radio bursts. The main types of bursts…

Solar and Stellar Astrophysics · Physics 2021-03-31 D. E. Morosan , A. Kumari , E. K. J. Kilpua , A. Hamini

We report on our study of radio source regions during the type II radio burst on 2013 May 22 based on direction finding (DF) analysis of the Wind/WAVES and STEREO/WAVES (SWAVES) radio observations at decameter-hectometric (DH) wavelengths.…

Solar and Stellar Astrophysics · Physics 2019-10-09 P. Mäkelä. N. Gopalswamy , M. J. Reiner , S. Akiyama , V. Krupar

We discuss properties of the expected radio emission from Soft Gamma-ray Repeaters (SGRs) during their bursting activity in the framework of the model of Thompson, Lyutikov and Kulkarni (2002), in which the high energy emission is powered…

Astrophysics · Physics 2009-11-07 Maxim Lyutikov

On 2014 October 30, a band-splitted type II radio burst associated with a coronal mass ejection (CME) observed by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamic Observatory (SDO) occurred over the southeast limb of the…

Solar and Stellar Astrophysics · Physics 2019-04-03 S. Mancuso , F. Frassati , A. Bemporad , D. Barghini

Solar type III radio bursts are an important diagnostic tool in the understanding of solar accelerated electron beams. They are a signature of propagating beams of nonthermal electrons in the solar atmosphere and the solar system.…

Solar and Stellar Astrophysics · Physics 2015-06-19 Hamish A. S. Reid , Heather Ratcliffe

Context. The Sun is an active star and the source of the largest explosions in the solar system, such as flares and coronal mass ejections (CMEs). Flares and CMEs are powerful particle accelerators that can generate radio emission through…

Solar and Stellar Astrophysics · Physics 2019-03-13 D. E. Morosan , E. K. J. Kilpua , E. P. Carley , C. Monstein

Solar flares are sudden energy release events in the solar corona, resulting from magnetic reconnection, that accelerates particles and heats the ambient plasma. During a flare, there are often multiple, temporally and spatially separated…

Solar and Stellar Astrophysics · Physics 2020-12-02 Rohit Sharma , Marina Battaglia , Yingjie Luo , Bin Chen , Sijie Yu

We investigated a peculiar metric type II solar radio burst with a broken lane structure, which was observed on November 13, 2012. In addition to the radio data, we also studied the data in the other wavelengths. The bursts were associated…

Solar and Stellar Astrophysics · Physics 2016-12-07 Guannan Gao , Min Wang , Ning Wu , Jun Lin , E. Ebenezer , Baolin Tan

On 13 June 2010, an eruptive event occurred near the solar limb. It included a small filament eruption and the onset of a relatively narrow coronal mass ejection (CME) surrounded by an extreme ultraviolet wave front recorded by the Solar…

We present a high fidelity snapshot spectroscopic radio imaging study of a weak type I solar noise storm which took place during an otherwise exceptionally quiet time. Using high fidelity images from the Murchison Widefield Array, we track…

Solar and Stellar Astrophysics · Physics 2021-10-13 Surajit Mondal , Divya Oberoi

One of the most important products of solar flares are nonthermal energetic particles which may carry up to 50\% energy releasing in the flaring processes. In radio observations, nonthermal particles generally manifest as spectral fine…

Solar and Stellar Astrophysics · Physics 2020-01-08 Baolin Tan , Nai-hwa Chen , Ya-hui Yang , Chengming Tan , Satoshi Masuda , Xingyao Chen , H. Misawa

Using high-resolution data from the Chashan Broadband Solar radio spectrometer at meter wavelengths (CBSm) of the Chinese Meridian Project-Phase II (CMP-II), Li et al. (2025) identified a novel fine spectral structure of solar radio bursts,…

Solar and Stellar Astrophysics · Physics 2026-04-30 Chuanyang Li , Yao Chen , Bing Wang , Yutong Li , Xiangliang Kong , Hao Ning , Sulan Ni , Shuwang Chang , Zichuan Li , Yang Gao , Zhe Cui , Li Deng , Jingye Yan , Fabao Yan

Context. Some of of the most prominent sources for energetic particles in our Solar System are huge eruptions of magnetised plasma from the Sun called coronal mass ejections (CMEs), which usually drive shocks that accelerate charged…

Solar and Stellar Astrophysics · Physics 2022-11-14 D. E. Morosan , J. Pomoell , A. Kumari , R. Vainio , E. K. J. Kilpua

Solar Radio Bursts (SRBs) are generally observed in dynamic spectra and have five major spectral classes, labelled Type I to Type V depending on their shape and extent in frequency and time. Due to their complex characterisation, a…

Solar and Stellar Astrophysics · Physics 2021-05-31 Jeremiah Scully , Ronan Flynn , Eoin Carley , Peter Gallagher , Mark Daly

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

Context. Coronal mass ejections (CMEs) are large eruptions of magnetised plasma from the Sun that are often accompanied by solar radio bursts produced by accelerated electrons. Aims. A powerful source for accelerating electron beams are…

Solar and Stellar Astrophysics · Physics 2020-10-14 D. E. Morosan , E. Palmerio , J. E. Räsänen , E. K. J. Kilpua , J. Magdalenić , B. J. Lynch , A. Kumari , J. Pomoell , M. Palmroth

Two solar type II radio bursts, separated by ~24 hours in time, are examined together. Both events are associated with coronal mass ejections (CMEs) erupting from the same active region (NOAA 11176) beneath a well-observed helmet streamer.…

Solar and Stellar Astrophysics · Physics 2015-06-23 Xiangliang Kong , Yao Chen , Fan Guo , Shiwei Feng , Bing Wang , Guohui Du , Gang Li

We have analysed radio type IV bursts in the interplanetary (IP) space at decameter-hectometer (DH) wavelengths, to find out their source origin and a reason for the observed directivity. We used radio dynamic spectra from the instruments…

Solar and Stellar Astrophysics · Physics 2018-11-06 Nasrin Talebpour Sheshvan , Silja Pohjolainen
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