Results 91 to 100 of about 2,282,682 (263)

Unified Relationship between Cold Plasma Ejections and Flare Energies Ranging from Solar Microflares to Giant Stellar Flares

The Astrophysical Journal, 2023
We often find spectral signatures of chromospheric cold plasma ejections accompanied by flares in a wide range of spatial scales in the solar and stellar atmospheres.
Yuji Kotani, Kazunari Shibata, Takako T. Ishii, Daiki Yamasaki, Kenichi Otsuji, Kiyoshi Ichimoto, Ayumi Asai   +6 more
doaj   +1 more source

SCATTERING POLARIZATION IN SOLAR FLARES [PDF]

The Astrophysical Journal, 2013
There is an ongoing debate about the origin and even the very existence of a high degree of linear polarization of some chromospheric spectral lines observed in solar flares. The standard explanation of these measurements is in terms of the impact polarization caused by non-thermal proton and/or electron beams.
Stepan, Jiri, Heinzel, Petr
openaire   +2 more sources

Is Magnetic Reconnection Dominantly Spatially or Temporally Variable: First Results From TRACERS

Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract The Tandem Reconnection And Cusp Electrodynamics Reconnaissance Satellites (TRACERS) small explorer mission was designed to: Determine whether magnetopause reconnection is primarily spatially or temporally variable for a range of solar wind conditions. Observations from the Analyzers for Cusp Ions (ACIs) on the two TRACERS spacecrafts are used
S. A. Fuselier, C. A. Kletzing, D. M. Miles, S. R. Bounds, J. B. Bonnell, I. H. Cairns, H. Cao, J. D. Furman, R. G. Gomez, K. Goodrich, J. S. Halekas, G. Hospodarsky, Y. Lin, J. LaBelle, K. LLera, J. Mukherjee, M. Øieroset, S. M. Petrinec, R. Roglans, O. Santolik, R. Strangeway, K. J. Trattner, S. K. Vines   +22 more
wiley   +1 more source

Solar Magnetic Activity and Its Terrestrial Impact through Correlations with Drought Indices

Physical Sciences and Technology
Solar activity manifests itself in the form of sunspots on the solar surface and solar flares, which can influence Earth's climatic conditions, including drought in mid-latitude regions.
Aiganym Sarsembayeva, Laura Ryssaliyeva, Farida Belissarova, Akmaral Sarsembay   +3 more
doaj   +1 more source

The Efficiency of Electron Acceleration during the Impulsive Phase of a Solar Flare

The Astrophysical Journal Letters, 2023
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 settings) presents a major challenge.
Eduard P. Kontar, A. Gordon Emslie, Galina G. Motorina, Brian R. Dennis   +3 more
doaj   +1 more source

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, J. Ireland, B. Dennis, L. Hayes, P. Gallagher   +4 more
semanticscholar   +1 more source

Laboratory Experiments Identify Meteoritic Organic Precursors for Chlorinated Compounds Detected by the Sample Analysis at Mars (SAM) Instrument at Gale Crater

Journal of Geophysical Research: Planets, Volume 131, Issue 11, November 2026.
Abstract The Viking missions landed two spacecraft on Mars each equipped with a pyrolysis‐gas chromatograph‐mass spectrometer system capable of detecting signs of life. Although working as intended, detections of chloromethane and dichloromethane were initially attributed to terrestrial contamination.
A. Mojarro, J. Herrera, A. Sistiaga, S. S. O’Reilly, J. C. Aponte, A. Buch, J. L. Eigenbrode, D. P. Glavin, C. Freissinet, M. Millan, C. Szopa, R. E. Summons   +11 more
wiley   +1 more source

Super active regions and production of major solar flares [PDF]

, 1986
The success of imaging detectors with small fields of veiw such as HXIS or P/OF (Pinhole/Occulter Facility) depends heavily on pointing to the right place at the right time.
Bai, T.
core  

Distribution of low-power solar flares by brightness rise time

Solar-Terrestrial Physics, 2018
Using data from the international flare patrol for 1972–2010, we have formed an electronic database for more than 123 thousand solar flares. We determined the mean brightness rise time (flash phase) for flare area classes and importance. We show that the
Borovik A.V., Zhdanov A.A.
doaj   +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