Results 81 to 90 of about 49,445 (284)
SITCoM: SiRGraF Integrated Tool for Coronal dynaMics
Frontiers in Astronomy and Space Sciences, 2023 SiRGraF Integrated Tool for Coronal dynaMics (SITCoM) is based on the Simple Radial Gradient Filter used to filter the radial gradient in the white-light coronagraph images and bring out dynamic structures.
Purvi Udhwani +5 more
doaj +1 more source
VIEW, EarlyView.This study introduces Fourier ptychographic scattered light microscopy (FP‐SLM). It combines Fourier ptychographic microscopy (FPM), which images large fields of view with high resolution, and computational scattered light imaging (ComSLI), which visualizes densely interwoven fibers.
Simon E. van Staalduine +3 more
wiley +1 more source
Models for coronal mass ejections [PDF]
Journal of Atmospheric and Solar-Terrestrial Physics, 2011 Coronal mass ejections (CMEs) play a key role in space weather. The mathematical modelling of these violent solar phenomena can contribute to a better understanding of their origin and evolution and as such improve space weather predictions. We review the state-of-the-art in CME simulations, including a brief overview of current models for the ...
Stefaan Poedts, Carla Jacobs
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Dynamic disappearance of prominences and their geoeffectiveness [PDF]
Geofísica Internacional, 2008 We study 14 cases of dynamic “disparition brusque” (DBd), the sudden disappearance of quiescent filaments/prominences, during two solar minima: 1985-1986 and 1994.
Z. Mouradian, L. Taliashvili, J. Páez
doaj
A Type II Radio Burst Driven by a Blowout Jet on the Sun
The Astrophysical Journal, 2023 Type II radio bursts are often associated with coronal shocks that are typically driven by coronal mass ejections (CMEs) from the Sun. Here we conduct a case study of a type II radio burst that is associated with a C4.5-class flare and a blowout jet, but
Zhenyong Hou +7 more
doaj +1 more source
Multipoint radio probe of the solar corona: The trans-coronal radio array fleet
Frontiers in Astronomy and Space Sciences, 2022 The Trans-Coronal Radio Array Fleet (T-CRAF) is a mission concept designed to continuously probe the magnetic field and plasma density structure of the corona at heliocentric distances of ≈ 2 − 10 R⊙ (solar radius, R⊙ = 695, 700 km).
Jason E. Kooi +3 more
doaj +1 more source
Observations of Coronal Mass Ejections [PDF]
Proceedings of the International Astronomical Union, 2006 Observations of source regions of coronal mass ejections have progressed enormously in the past decade with the observations from SOHO and Yohkoh. Progress has been made on understanding magnetic helicity, coronal dimming, coronal waves and flares in terms of their relationship to CMEs.
Jingxiu Wang, Louise K. Harra
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Hemispheric Distribution of Halo Coronal Mass Ejection Source Locations
The Astrophysical JournalThe hemispheric asymmetry of solar activity is one of the essential physical consequences of the interior dynamo process. However, the hemispheric distribution of halo coronal mass ejection (HCME) source locations has not been investigated in detail ...
XiaoJuan Zhang +4 more
doaj +1 more source
V arc interplanetary coronal mass ejections observed with the Solar Mass Ejection Imager
, 2007 [1] Since February 2003, the Solar Mass Ejection Imager (SMEI) has been observing interplanetary coronal mass ejections (ICMEs) at solar elongation angles e > 20°.
S. Kahler, D. Webb
semanticscholar +1 more source
The onset of coronal mass ejections
The Astrophysical Journal, 1985 A study has been made of the nonlinear magnetostatic equilibria available to an axisymmetric corona as excess mass is added to a region confined in latitudinal extent at the coronal base. It is found that sequences of equilibrium solutions evolve discontinuously in response to increasing gas pressure, in contrast to the continuous evolution that occurs
Scot A. C. Gould, R. Wolfson
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