Results 101 to 110 of about 1,700,755 (212)

Magnetic Vortices as Precursor Structures in Flaring Active Regions

The Astrophysical Journal
Solar flares result from explosive magnetic energy release in the solar atmosphere, often linked to magnetic reconnection. While the underlying physical mechanisms are generally understood, the specific conditions that make an active region (AR) flare at
Leonardo F. G. Batista, Breno Raphaldini, Suzana S. A. Silva, Tiago F. P. Gomes, Erico L. Rempel   +4 more
doaj   +1 more source

Abstracts

Molecular Oncology, Volume 20, Issue S1, Page 1-692, August 2026.
Abstracts submitted to the ‘EACR 2026 Congress: Innovative Cancer Science’, from 08–11 June 2026 and accepted by the Congress Organising Committee are published in this Supplement of Molecular Oncology, an affiliated journal of the European Association for Cancer Research (EACR).
wiley   +1 more source

The Influence of Different Phases of a Solar Flare on Changes in the Total Electron Content in the Earth’s Ionosphere

The Astrophysical Journal
Variations in X-ray and extreme ultraviolet (EUV) irradiance during solar flares lead to a noticeable increase in the electron concentration in the illuminated part of the Earth’s ionosphere.
Susanna Bekker, Ryan O. Milligan, Ilya A. Ryakhovsky   +2 more
doaj   +1 more source

A Test of Thick-Target Nonuniform Ionization as an Explanation for Breaks in Solar Flare Hard X-Ray Spectra

, 2010
Solar nonthermal hard X-ray (HXR) flare spectra often cannot be fitted by a single power law, but rather require a downward break in the photon spectrum. A possible explanation for this spectral break is nonuniform ionization in the emission region.
Dennis Brian R., Tolbert, Anne K., Holman, gordon, Schwartz, Richard   +3 more
core  

Double Power-law Formation by Sequential Particle Acceleration

The Astrophysical Journal
Spectral double power laws are common in solar high-energy phenomena such as flares and interplanetary energetic-electron events. However, the physical mechanism that produces the changes in power-law index within a single spectrum is unclear.
S. E. Guidoni, C. R. DeVore, J. T. Karpen, M. Alaoui   +3 more
doaj   +1 more source

The solar flare environment [PDF]

, 1965
Solar flare environment - solar atmosphere, photosphere, chromosphere, corona, and solar flare types, model, occurence, prediction, and ...
Roberts, W. T.
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Comptel measurements of solar flare neutrons

, 1993
The ability to measure solar flare neutrons by the COMPTEL γ-ray telescope on-board the Compton Gamma Ray Observatory has been demonstrated during the observations of the powerful solar flares of June 1991 from Active Region 6659.
McConnell, Mark L., Webber, W, Debrunner, H, Schonfelder, V., Lockwood, J, Forrest, D J, Ryan, James M., Morris, D, Bennett, K, Swanenburg, B, Loomis, M   +10 more
core   +1 more source

Intense Hard X-Ray Emissions in C-class Flares: A Statistical Study with ASO-S/HXI Data

The Astrophysical Journal Letters
In the standard model of solar eruptive events, coronal mass ejections (CMEs) and flares are associated with each other through magnetic reconnection initiated by erupting flux ropes.
Changxue Chen, Yang Su, Wei Chen, Jingwei Li, Fu Yu, Weiqun Gan   +5 more
doaj   +1 more source

Continuum Enhancement and Line Asymmetries of Solar Flares in Different Heating Models: Alfvén Waves, Nonthermal Electron Beams, and Their Joint Effect

The Astrophysical Journal
How the plasma in the atmosphere is heated during a solar flare remains inconclusive. Nonthermal electron beams are usually considered as an essential heating source, yet Alfvén waves have also been proposed as a promising heating mechanism.
Jun Tian, Ying Li, Jie Hong, M. D. Ding
doaj   +1 more source

The Flare Weekender 2014

, 2014
International performance showcase, supported by Arts Council England, MMU - IPR, Word of Warning, University of Salford, Z ...
Mackenzie, NK
core