English
Related papers

Related papers: Automated Detection of Solar Radio Bursts using a …

200 papers

We use multi-spacecraft observations of invididual type III radio bursts in order to calculate the directivity of the radio emission, to be compared to the results of ray-tracing simulations of the radio-wave propagation and probe the…

Solar and Stellar Astrophysics · Physics 2021-12-15 S. Musset , M. Maksimovic , E. Kontar , V. Krupar , N. Chrysaphi , X. Bonnin , A. Vecchio , B. Cecconi , A. Zaslavsky , K. Issautier , S. D. Bale , M. Pulupa

During Type III solar radio bursts, electromagnetic waves are radiated at plasma frequency $\omega_p$ and its harmonics by electrostatic wave turbulence generated by electron beams ejected by Sun in randomly inhomogeneous solar wind and…

Solar and Stellar Astrophysics · Physics 2025-08-12 Catherine Krafft , Alexandr Volokitin , Francisco Javier Polanco-Rodríguez , Philippe Savoini

We present first results of a solar radio event observed with the Owens Valley Radio Observatory Long Wavelength Array (OVRO-LWA) at metric wavelengths. We examine a complex event consisting of multiple radio sources/bursts associated with…

Solar and Stellar Astrophysics · Physics 2021-01-27 Sherry Chhabra , Dale E. Gary , Gregg Hallinan , Marin M. Anderson , Bin Chen , Lincoln J. Greenhill , Danny C. Price

The Sun produces highly dynamic and eruptive events that can drive shocks through the corona. These shocks can accelerate electrons, which result in plasma emission in the form of a type II radio burst. Despite the large number of type II…

Solar and Stellar Astrophysics · Physics 2021-03-10 Ciara A. Maguire , Eoin P. Carley , Pietro Zucca , Nicole Vilmer , Peter T. Gallagher

Solar eruptions are the most spectacular events in our solar system and are associated with many different signatures of energy release including solar flares, coronal mass ejections, global waves, radio emission and accelerated particles.…

Solar and Stellar Astrophysics · Physics 2017-12-20 David M. Long , Pearse Murphy , Georgina Graham , Eoin P. Carley , David Pérez-Suárez

Type-I solar noise storms are perhaps the most commonly observed active radio emissions from the Sun at meter-wavelengths. Noise storms have a long-lived and wideband continuum background with superposed islands of much brighter narrowband…

Solar and Stellar Astrophysics · Physics 2024-11-22 Surajit Mondal , Devojyoti Kansabanik , Divya Oberoi , Soham Dey

Electromagnetic wave scattering off density inhomogeneities in the solar corona is an important process which determines both the apparent source size and the time profile of radio bursts observed at 1 AU. Here we model the scattering…

Solar and Stellar Astrophysics · Physics 2019-03-05 N. H. Bian , A. G. Emslie , E. P. Kontar

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 a study of decimetric radio activity, using the first high time cadence (0.5 s) images from the ${\textit{Giant Meterwave Radio Telescope}}$ (${\textit{GMRT}}$) at 610 MHz, associated with ${\textit{GOES}}$ C1.4 and M1.0 class…

Solar and Stellar Astrophysics · Physics 2018-08-08 Susanta Kumar Bisoi , H. S. Sawant , P. Janardhan , Y. Yan , L. Chen , Arun Kumar Awasthi , Shweta Srivastava , G. Gao

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 signatures of shock waves generated by solar eruptions, observed at radio wavelengths. While metric (m) type II bursts originate in the lower corona, their longer-wavelength (up to kilometers) counterparts extend…

Solar and Stellar Astrophysics · Physics 2025-10-06 Pooja Devi , Ramesh Chandra , Rositsa Miteva , M. Syed Ibrahim , Kamal Joshi

Type-II radio bursts are typically observed below ~ 400 MHz, with narrow-band slowly-drifting fundamental and harmonic structures. Here we report an unusual high-frequency wide-band type-II burst with starting frequency as high as 600 - 700…

Solar and Stellar Astrophysics · Physics 2025-05-07 V. Vasanth , Yao Chen , G. Michalek

Fast Radio Bursts are millisecond-duration astronomical radio pulses of unknown physical origin that appear to come from extragalactic distances. Previous follow-up observations have failed to find additional bursts at the same dispersion…

Metric and decametric radio-emissions from the Sun are the only direct source of information about the dynamics of non-thermal electrons in the upper corona. In addition, the combination of spectral and imaging (sizes, shapes, and…

Solar and Stellar Astrophysics · Physics 2022-02-09 M. Gordovskyy , E. P. Kontar , D. L. Clarkson , N. Chrysaphi , P. K. Browning

With the rapid development of telescopes, both temporal cadence and the spatial resolution of observations are increasing. This in turn generates vast amount of data, which can be efficiently searched only with automated detections in order…

Solar and Stellar Astrophysics · Physics 2019-01-30 Q. Hao , P. F. Chen , C. Fang

Radio detections of stellar systems provide a window onto stellar magnetic activity and the space weather conditions of extrasolar planets, information that is difficult to attain at other wavelengths. There have been recent advances…

The Space Weather effects in the near-Earth environment as well as in atmospheres of other terrestrial planets arise by corpuscular radiation from the Sun, known as the solar wind. The solar magnetic fields govern the solar corona…

Solar and Stellar Astrophysics · Physics 2022-01-05 A. Koval , M. Karlicky , A. Stanislavsky , B. Wang , M. Barta , R. Gorgutsa

The results of the analysis of 205 brightest sources ( $S>15$ mJy), which were found in the sky survey at the declination of the pulsar in the Crab Nebula, are presented. The survey was conducted at a frequency of 4.7~GHz using a three-beam…

High Energy Astrophysical Phenomena · Physics 2024-11-27 A. A. Kudryashova , N. N. Bursov , S. A. Trushkin

Drift-pair bursts are an unusual type of solar low-frequency radio emission, which appear in the dynamic spectra as two parallel drifting bright stripes separated in time. Recent imaging spectroscopy observations allowed for the…

Solar and Stellar Astrophysics · Physics 2020-07-30 Alexey A. Kuznetsov , Nicolina Chrysaphi , Eduard P. Kontar , Galina Motorina