Results 151 to 160 of about 2,282,682 (263)
The relationship between solar flares and solar sector boundaries [PDF]
, 1974 A superposed epoch analysis of 1964-1970 solar flares shows a marked increase in flare occurrence within a day of (-+) solar sector boundaries, as well as a local minimum in flare occurrence near (+-) sector boundaries.
Dittmer, P. H.
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Geophysical Research LettersFlares originate from the impulsive release of magnetic energy in the solar atmosphere. The rise in X‐ray flux enhances ionization/electron content in the upper atmosphere, modifying the photochemical and dynamical processes that govern the ionosphere ...
Komal, Duggirala Pallamraju
doaj +1 more source
Solar energetic particle events: phenomenology and prediction
, 2002 Solar energetic particle events can cause major disruptions to the operation of spacecraft in earth orbit and outside the earth's magnetosphere and have to be considered for EVA and other manned activities. They may also have an effect on radiation doses
Patrick, G.J. +4 more
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The Astrophysical JournalStellar eruptive events, such as flares and coronal mass ejections (CMEs), can affect planetary habitability by disturbing the stability of their atmospheres.
Nuri Park +2 more
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The Astrophysical Journal LettersAbstract This Letter proposes that the ion temperature is several times the local electron temperature in the hot onset phase and in the above-the-loop region of solar flares. The Letter considers: the evidence of spectral line Doppler widths (“nonthermal” broadening); evidence for “universal” ion and electron temperature increase ...
Alexander J. B. Russell +4 more
openaire +3 more sources
Effect of flares on solar oscillation characteristics [PDF]
, 2002 We use ring diagram analysis to study the effect of solar flares on oscillation mode characteristics, using data from GONG+ and MDI. The data taken around the flares of June 6-7, 2000; March 29, 2001 and April 10-11, 2001 are studied. We find that during
Basu, Sarbani +2 more
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Neon composition in solar flares
, 1981 To examine whether the long-term averaged solar flare Ne is "planetary" type, as observed in contemporary solar flares, we have studied etched feldspar separates of several lunar soils and three samples from different depths of two well-documented lunar ...
Venkatesan, T. R. +2 more
core +1 more source
The Astrophysical JournalThis study is based on proton flux data from ESA’s Solar Energetic Particle Environment Modeling database, analyzing solar energetic particle (SEP) events observed near Earth from 1976 to 2017. We have matched these events with corresponding solar flares
Zhendi Huang +4 more
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Statistical Study of Nine Months Distribution of Solar Flares
, 2014 Solar flare is one of the solar activities that take place in the outermost layer of the corona. Solar flares can heat the material to several million degrees in just a few minutes and at the same time they release the numerous amount of energy.
C. Monstein +2 more
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Solar Flares Triggered by a Filament Peeling Process Revealed by High-resolution GST Hα Observations
The Astrophysical Journal LettersThe dynamic structures of solar filaments prior to solar flares provide important physical clues about the onset of solar eruptions. Observations of those structures under subarcsecond resolution with high cadence are rare.
Mia Mancuso +3 more
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