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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

Solar coronal radio bursts are enhanced radio emission excited by energetic electrons accelerated during solar eruptions, studies on which are important for investigating the origin and physical mechanism of energetic particles and further…

Solar and Stellar Astrophysics · Physics 2016-08-08 S. W. Feng , Y. Chen , H. Q. Song , B. Wang , X. L. Kong

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 investigate the physical conditions of the sources of two metric Type-II bursts associated with CME expansions with the aim of verifying the relationship between the shocks and the CMEs, comparing the heights of the radio sources and the…

Solar and Stellar Astrophysics · Physics 2015-06-11 R. D. Cunha-Silva , F. C. R. Fernandes , C. L. Selhorst

It has been suggested that type II radio bursts are due to energetic electrons accelerated at coronal shocks. Radio observations, however, have poor or no spatial resolutions to pinpoint the exact acceleration locations of these electrons.…

Solar and Stellar Astrophysics · Physics 2015-06-04 S. W. Feng , Y. Chen , X. L. Kong , G. Li , H. Q. Song , X. S. Feng , Ying Liu

Type II solar radio bursts are commonly associated with shocks generated by coronal mass ejections (CMEs), where plasma waves are excited by magnetohydrodynamic (MHD) processes and converted into radio waves at the local plasma frequency or…

Solar and Stellar Astrophysics · Physics 2025-10-07 Anshu Kumari , Nat Gopalswamy

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

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

We report a solar coronal split-band type II radio burst that was observed on 2016 March 16 with the Gauribidanur Radio Spectro-Polarimeter (GRASP) in the frequency range $\approx$\,90\,-\,50 MHz, and the Gauribidanur RadioheliograPH…

Solar and Stellar Astrophysics · Physics 2019-08-14 Anshu Kumari , R. Ramesh , C. Kathiravan , T. J. Wang , N. Gopalswamy

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 report on a multi-wavelength analysis of the 26 January 2014 solar eruption involving a coronal mass ejection (CME) and a Type-II radio burst, performed by combining data from various space-and ground-based instruments. An increasing…

We present observational results of a type II burst associated with a CME-CME interaction observed in the radio and white-light wavelength range. We applied radio direction-finding techniques to observations from the STEREO and Wind…

Solar and Stellar Astrophysics · Physics 2015-06-04 Juan Carlos Martínez Oliveros , Claire L. Raftery , Hazel M. Bain , Ying Liu , Vratislav Krupar , Stuart Bale , Säm Krucker

We present an investigation of the Extreme-Ultraviolet (EUV) wave linked to the flare that occurred on 28 October 2021, along with the associated coronal loop oscillation and type II radio burst. The EUV wave was observed by multi-viewpoint…

Solar and Stellar Astrophysics · Physics 2025-07-03 Pooja Devi , Ramesh Chandra , Arun Kumar Awasthi , Brigitte Schmieder , Reetika Joshi

We re-examine the physical relationship between Extreme-UltraViolet (EUV) waves and type II radio bursts. It has been often thought that they are two observational aspects of a single coronal shock wave. However, a lack of their speed…

Solar and Stellar Astrophysics · Physics 2021-11-17 Aarti Fulara , Ryun-Young Kwon

In recent studies (Feng et al., 2012; Kong et al., 2012), we proposed that source properties of type II radio bursts can be inferred through a causal relationship between the special shape of the type II dynamic spectrum (e.g., bump or…

Solar and Stellar Astrophysics · Physics 2015-06-15 S. W. Feng , Y. Chen , X. L. Kong , G. Li , H. Q. Song , X. S. Feng , F. Guo

Source imaging of solar radio bursts can be used to track energetic electrons and associated magnetic structures. Here we present a combined analysis of data at different wavelengths for an eruption associated with a moving type-IV (t-IVm)…

Solar and Stellar Astrophysics · Physics 2019-01-09 V. Vasanth , Yao Chen , Maoshui Lv , Hao Ning , Chuangyang Li , Shiwei Feng , Zhao Wu , Guohui Du

Type II radio bursts are often associated with coronal shocks that are typically driven by coronal mass ejections (CMEs) from the Sun. Here, we conduct a case study of a type II radio burst that is associated with a C4.5 class flare and a…

Solar and Stellar Astrophysics · Physics 2023-07-04 Zhenyong Hou , Hui Tian , Wei Su , Maria S. Madjarska , Hechao Chen , Ruisheng Zheng , Xianyong Bai , Yuanyong Deng

Two similar-looking, two-part interplanetary type II burst events from 2003 and 2012 are reported and analysed. The 2012 event was observed from three different viewing angles, enabling comparisons between the spacecraft data. In these two…

Solar and Stellar Astrophysics · Physics 2025-03-07 Silja Pohjolainen

The successive type-II solar radio bursts observed on 31 July 2012 by the Bruny Island Radio Spectrometer (BIRS) in the frequency range between 62 - 6 MHz is reported and analyzed. The first type-II radio burst shows clear fundamental and…

Solar and Stellar Astrophysics · Physics 2026-01-16 V. Vasanth

Type II radio bursts are solar radio emissions generated by electrons accelerated by coronal shocks. These bursts are typically found close to expanding coronal mass ejections (CMEs), making them valuable for studying the properties and…

Solar and Stellar Astrophysics · Physics 2026-05-13 K. Bhandari , D. E. Morosan , S. Normo
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