Results 61 to 70 of about 1,141,583 (297)
Collective acceleration in solar flares [PDF]
Physica Scripta, 1994 Solar flare data are examined with an eye to seeing if they suggest collective acceleration of ions. That, in fact, seems to be the case. The collective acceleration mechanism of Gershtein is reviewed and the possibilities of the mechanism are discussed.
Barletta, W +5 more
openaire +4 more sources
The Influence of Solar Spectral Lines on Electron Concentration in Terrestrial Ionosphere
Open Astronomy, 2011 One of the methods of detection and analysis of solar flares is observing the time variations of certain solar spectral lines. During solar flares, a raise of electron concentration occurs in Earth’s ionosphere which results in amplitude and phase ...
Nina A. +3 more
doaj +1 more source
Statistical research into low-power solar flares. Main phase duration
Solar-Terrestrial Physics, 2017 This paper is a sequel to earlier papers on time parameters of solar flares in the Hα line. Using data from the International Flare Patrol, an electronic database of solar flares for the period 1972–2010 has been created.
Borovik A.V., Zhdanov A.A.
doaj +1 more source
The influence of active region information on the prediction of solar flares: an empirical model using data mining [PDF]
Annales Geophysicae, 2005 Predicting the occurrence of solar flares is a challenge of great importance for many space weather scientists and users. We introduce a data mining approach, called Behavior Pattern Learning (BPL), for automatically discovering correlations between ...
M. Núñez +3 more
doaj +1 more source
The effect of flares on total solar irradiance
, 2010 Flares are powerful energy releases occurring in stellar atmospheres. Solar flares, the most intense energy bursts in the solar system, are however hardly noticeable in the total solar luminosity.
AG Emslie +15 more
core +3 more sources
A LARGE-SCALE SEARCH FOR EVIDENCE OF QUASI-PERIODIC PULSATIONS IN SOLAR FLARES [PDF]
, 2016 The nature of quasi-periodic pulsations (QPP) in solar flares is poorly constrained, and critically the general prevalence of such signals in solar flares is unknown.
A. Inglis +4 more
semanticscholar +1 more source
A Parameter Study for Modeling Mg ii h and k Emission during Solar Flares [PDF]
, 2017 Solar flares show highly unusual spectra in which the thermodynamic conditions of the solar atmosphere are encoded. Current models are unable to fully reproduce the spectroscopic flare observations, especially the single-peaked spectral profiles of the ...
Fatima Rubio da Costa, L. Kleint
semanticscholar +1 more source
Three-dimensional magnetic reconnection and its application to solar flares [PDF]
Journal of Plasma Physics, 2016 Solar flares are powerful radiations occurring in the Sun’s atmosphere. They are powered by magnetic reconnection, a phenomenon that can convert magnetic energy into other forms of energy such as heat and kinetic energy, and which is believed to be ...
M. Janvier
semanticscholar +1 more source
Solar and Stellar Flares [PDF]
Highlights of Astronomy, 1989 AbstractThis review concentrates on some selected topics concerning the release of magnetic energy and associated phenomena in flares. Emphasis is on microflares, recent studies of different phases of flares, and propagation and trapping of flare accelerated electrons. The ongoing analysis of the observations of the previous solar cycle reaches a state
openaire +2 more sources
Modeling Solar Energetic Neutral Atoms from Solar Flares and CME-driven Shocks
The Astrophysical Journal, 2023 We examine the production of energetic neutral atoms (ENAs) in solar flares and coronal mass ejection (CME)-driven shocks and their subsequent propagation to 1 au. Time profiles and fluence spectra of solar ENAs at 1 au are computed for two scenarios: (1)
Gang Li +7 more
doaj +1 more source