Results 31 to 40 of about 436,677 (299)

Atmospheric changes from solar eclipses [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2016
This article reviews atmospheric changes associated with 44 solar eclipses, beginning with the first quantitative results available, from 1834 (earlier qualitative accounts also exist). Eclipse meteorology attracted relatively few publications until the total solar eclipse of 16 February 1980, with the 11 August 1999 eclipse producing the most papers ...
K. L. Aplin, C. J. Scott, S. L. Gray
openaire   +5 more sources

Magnetohydrodynamic Waves in Multi-Layered Asymmetric Waveguides: Solar Magneto-Seismology Theory and Application

open access: yesFrontiers in Astronomy and Space Sciences, 2019
Diagnosing the solar atmospheric plasma is one of the major challenges in solar physics. Magnetohydrodynamic (MHD) waves, by means of applying the powerful concept of solar magneto-seismology (SMS), provide a tool to obtain diagnostic insight into the ...
Matthew Allcock   +6 more
doaj   +1 more source

Interrogating solar flare loop models with IRIS observations 1: Overview of the models, and mass flows

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Solar flares are transient yet dramatic events in the atmosphere of the Sun, during which a vast amount of magnetic energy is liberated. This energy is subsequently transported through the solar atmosphere or into the heliosphere, and together with ...
Graham S. Kerr, Graham S. Kerr
doaj   +1 more source

Resonant Damping of Propagating Kink Waves in Non-stationary, Longitudinally Stratified, and Expanding Solar Waveguides

open access: yesFrontiers in Astronomy and Space Sciences, 2019
Propagating kink waves have been observed in many magnetic waveguides in the solar atmosphere, like coronal magnetic loops, spicules, and fine structures of prominences. There are also observational evidences that these waves are damped.
Michael S. Ruderman   +4 more
doaj   +1 more source

Interrogating solar flare loop models with IRIS observations 2: Plasma properties, energy transport, and future directions

open access: yesFrontiers in Astronomy and Space Sciences, 2023
During solar flares a tremendous amount of magnetic energy is released and transported through the Sun’s atmosphere and out into the heliosphere. Despite over a century of study, many unresolved questions surrounding solar flares are still present. Among
Graham S. Kerr, Graham S. Kerr
doaj   +1 more source

Analytical Solution of the Hanle Effect in View of CLASP and Future Polarimetric Solar Studies

open access: yesAtoms, 2019
We have solved a problem of the Hanle effect for the hydrogen Lyman- α line in an intuitive and straightforward way. The Stokes parameters amid an anisotropic radiation field and a magnetic field are derived as an analytical formula which ...
Motoshi Goto   +3 more
doaj   +1 more source

A model for straight and helical solar jets: II. Parametric study of the plasma beta [PDF]

open access: yes, 2015
Jets are dynamic, impulsive, well-collimated plasma events that develop at many different scales and in different layers of the solar atmosphere.
Antiochos, S. K.   +4 more
core   +4 more sources

Solar science with the Atacama Large Millimeter/submillimeter Array - A new view of our Sun [PDF]

open access: yes, 2015
The Atacama Large Millimeter/submillimeter Array (ALMA) is a new powerful tool for observing the Sun at high spatial, temporal, and spectral resolution.
Alissandrakis, C. E.   +37 more
core   +2 more sources

Mesoscale Convective Systems and Extreme Precipitation on the West African Coast Linked to Ocean–Atmosphere Conditions during the Monsoon Period in the Gulf of Guinea

open access: yesAtmosphere
This study investigates the importance of convective systems for extreme rainfall along the northern coast of the Gulf of Guinea (GG) and their relationship with atmospheric and oceanic conditions.
Sandrine Djakouré   +3 more
doaj   +1 more source

Solar Flare Ribbon Fronts. I. Constraining Flare Energy Deposition with IRIS Spectroscopy

open access: yesThe Astrophysical Journal, 2023
Spectral lines formed at lower atmospheric layers show peculiar profiles at the “leading edge” of ribbons during solar flares. In particular, increased absorption of the BBSO/GST He i λ 10830 line, as well as broad and centrally reversed profiles in the ...
Vanessa Polito   +4 more
doaj   +1 more source

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