Imaging Spectroscopy of Type U and J Solar Radio Bursts with LOFAR [PDF]
, 2017 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 extend into ...
Kontar, Eduard P., Reid, Hamish A. S.
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The Astrophysical Journal, 2022 Abstract We simulate possible stellar coronal mass ejection (CME) scenarios over the magnetic cycle of ϵ Eridani (18 Eridani; HD 22049). We use three separate epochs from 2008, 2011, and 2013, and estimate the radio emission frequencies associated with these events.
Dúalta Ó Fionnagáin +7 more
openaire +6 more sources
Spectral Analysis of Solar Radio Type III Bursts from 20 kHz to 410 MHz
The Astrophysical Journal, 2022 We present the statistical analysis of the spectral response of solar radio type III bursts over the wide frequency range between 20 kHz and 410 MHz. For this purpose, we have used observations that were carried out using both spaced-based (Wind/Waves ...
K. Sasikumar Raja +12 more
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First Detection of Thermal Radio Emission from Solar-Type Stars with the Karl G. Jansky Very Large Array [PDF]
, 2014 We present the first detections of thermal radio emission from the atmospheres of solar-type stars {\tau} Cet, {\eta} Cas A, and 40 Eri A. These stars all resemble the Sun in age and level of magnetic activity, as indicated by X-ray luminosity and ...
Bourke, Stephen +4 more
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Radio seismology of the outer solar corona [PDF]
, 2013 Observed oscillations of coronal loops in EUV lines have been successfully used to estimate plasma parameters in the inner corona (< 0.2 R_0, where R_0 is the solar radius).
Brazhenko, A. I. +7 more
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A Statistical Analysis of the Solar Phenomena Associated with Global EUV Waves [PDF]
, 2017 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. Here, we apply
Carley, Eoin P. +4 more
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Fine structures of solar radio type III bursts and their possible relationship with coronal density turbulence [PDF]
, 2018 Solar radio type III bursts are believed to be the most sensitive signatures of near-relativistic electron beam propagation in the corona. A solar radio type IIIb-III pair burst with fine frequency structures, observed by the Low Frequency Array (LOFAR ...
Chen, Xingyao +5 more
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Isolated Sunspot with a Dark Patch in the Coronal Emission
Open Astronomy, 2012 On the base of the 17 GHz radio maps of the Sun taken with the Nobeyama Radio Heliograph we estimate plasma parameters in the specific region of the sunspot atmosphere in the active region AR 11312.
Bezrukov D. A. +2 more
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Characterizing the Spectral Structure of Weak Impulsive Narrowband Quiet Sun Emissions
The Astrophysical Journal, 2023 Weak Impulsive Narrowband Quiet Sun Emissions (WINQSEs) are a newly discovered class of radio emission from the solar corona. These emissions are characterized by their extremely impulsive, narrowband, and ubiquitous nature.
Surajit Mondal +3 more
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Fibre structure of decametric type II radio bursts as a manifestation of emission propagation effects in a disturbed near-solar plasma [PDF]
Annales Geophysicae, 2009 This paper addresses the fine structure of solar decametric type II radio bursts in the form of drifting narrowband fibres on the dynamic spectrum. Observations show that this structure appears in those events where there is a coronal mass ejection ...
A. N. Afanasiev, A. N. Afanasiev
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