activity
20152026
most citedMulti-thermal representation of the kappa-distribution of solar flare electrons and application to simultaneous X-ray and EUV observations

34 citations · 129 across the 16 of their papers we have counts for

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Showing astro-ph.SRShow all

11 papers · 1 filter

astro-ph.SR2026

Solar Radio Burst Fine Structures

Eduard Kontar, Daniel Clarkson, Hamish Reid +5

Solar radio bursts exhibit intricate variability in time, space, and frequency, often displaying a rich variety of fine frequency-time structures such as spikes, drift pairs, stria…

astro-ph.SR2025★ 3 cited

Energy budget in the 2017-09-07 "cold" solar flare

Gregory D. Fleishman, Galina G. Motorina, Sijie Yu +1

A subclass of early impulsive solar flares, cold flares, was proposed to represent a clean case, where the release of the free magnetic energy (almost) entirely goes to acceleratio…

astro-ph.SR2024★ 4 cited

Atacama Large Aperture Submillimeter Telescope (AtLAST) Science: Solar and stellar observations

Sven Wedemeyer, Miroslav Barta, Roman Brajsa +35

Observations at (sub-)millimeter wavelengths offer a complementary perspective on our Sun and other stars, offering significant insights into both the thermal and magnetic composit…

astro-ph.SR2023★ 5 cited

Cold Solar Flares I. Microwave Domain

Alexandra L. Lysenko, Stephen M. White, Dmitry A. Zhdanov +4

We identify a set of ~100 "cold" solar flares and perform a statistical analysis of them in the microwave range. Cold flares are characterized by a weak thermal response relative t…

astro-ph.SR2023

Data-constrained 3D modeling of a solar flare evolution: acceleration, transport, heating, and energy budget

Gregory D. Fleishman, Gelu M. Nita, Galina G. Motorina

Solar flares are driven by release of the free magnetic energy and its conversion to other forms of energy -- kinetic, thermal, and nonthermal. Quantification of partitions between…

astro-ph.SR2023★ 9 cited

The efficiency of electron acceleration during the impulsive phase of a solar flare

Eduard P. Kontar, A. Gordon Emslie, Galina G. Motorina +1

Solar flares are known to be prolific electron accelerators, yet identifying the mechanism(s) for such efficient electron acceleration in solar flare (and similar astrophysical set…

astro-ph.SR2021★ 12 cited

Energy budget of plasma motions, heating, and electron acceleration in a three-loop solar flare

Gregory D. Fleishman, Lucia Kleint, Galina G. Motorina +2

Non-potential magnetic energy promptly released in solar flares is converted to other forms of energy. This may include nonthermal energy of flare-accelerated particles, thermal en…

astro-ph.SR2020★ 24 cited

Radio Echo in the Turbulent Corona and Simulations of Solar Drift-Pair Radio Bursts

Alexey A. Kuznetsov, Nicolina Chrysaphi, Eduard P. Kontar +1

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 i…

astro-ph.SR2020★ 14 cited

Spatio-temporal energy partitioning in a non-thermally dominated two-loop solar flare

Galina G. Motorina, Gregory D. Fleishman, Eduard P. Kontar

Solar flares show remarkable variety of the energy partitioning between thermal and nonthermal components. Those with a prominent nonthermal component but only a modest thermal one…

astro-ph.SR2019★ 13 cited

Electron distribution and energy release in magnetic reconnection outflow regions during the pre-impulsive phase of a solar flare

Marina Battaglia, Eduard P. Kontar, Galina Motorina

We present observations of electron energization in magnetic reconnection outflows during the pre-impulsive phase of solar flare SOL2012-07-19T05:58. During a time-interval of abou…

astro-ph.SR2015★ 34 cited

Multi-thermal representation of the kappa-distribution of solar flare electrons and application to simultaneous X-ray and EUV observations

Marina Battaglia, Galina Motorina, Eduard P. Kontar

Acceleration of particles and plasma heating is one of the fundamental problems in solar flare physics. An accurate determination of the spectrum of flare energized electrons over…