Results 61 to 70 of about 16,880 (179)

Evolution of a Coronal Mass Ejection with an Eruptive Prominence from the Corona to Interplanetary Space

open access: yesThe Astrophysical Journal
Understanding the location and evolution of the cool dense prominence in relation to the large-scale structure of coronal mass ejections (CMEs) is critical to distinguish between different CME initiation mechanisms and to further deepen our understanding
Bin Zhuang   +9 more
doaj   +1 more source

Investigating the driving mechanisms of coronal mass ejections

open access: yes, 2010
The objective of this investigation was to first examine the kinematics of coronal mass ejections (CMEs) using EUV and coronagraph images, and then to make a comparison with theoretical models in the hope to identify the driving mechanisms of the CMEs ...
Bong   +30 more
core   +1 more source

Models for coronal mass ejections [PDF]

open access: yesJournal 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 ...
Jacobs, Carla, Poedts, Stefaan
openaire   +1 more source

Solar Mass Ejections and Coronal Holes [PDF]

open access: yesInternational Astronomical Union Colloquium, 1996
AbstractIn this paper we present observations of two types of solar mass ejections, which seem to be associated with the location of coronal holes. In the first type, a filament eruption was observed near a coronal hole, which gave rise to a strong interplanetary scintillations, as detected by IPS observations.
openaire   +1 more source

ARCANE–Early Detection of Interplanetary Coronal Mass Ejections

open access: yesSpace Weather
Interplanetary coronal mass ejections (ICMEs) are major drivers of space weather disturbances, posing risks to both technological infrastructure and human activities.
Hannah T. Rüdisser   +4 more
doaj   +1 more source

Evidence linking coronal mass ejections with interplanetary magnetic clouds [PDF]

open access: yes
Using proxy data for the occurrence of those mass ejections from the solar corona which are directed earthward, we investigate the association between the post-1970 interplanetary magnetic clouds of Klein and Burlaga and coronal mass ejections.
Hildner, E., Wilson, R. M.
core   +1 more source

Coronal mass ejections as expanding force-free structures

open access: yes, 2011
We mode Solar coronal mass ejections (CMEs) as expanding force-fee magnetic structures and find the self-similar dynamics of configurations with spatially constant \alpha, where {\bf J} =\alpha {\bf B}, in spherical and cylindrical geometries, expanding ...
B.C. Low   +29 more
core   +1 more source

White Light Coronograph (WLC) and Ultra-Violet Coronal Spectrometer (UVCS) [PDF]

open access: yes
The white light coronagraph (WLC) and ultraviolet coronal spectrometer (UVCS) together reveal the corona and the roots of the solar wind from 1.5 to 6 solar radii from Sun center.
Moore, R. L.
core   +1 more source

Micro-Sigmoids as Progenitors of Coronal Jets - Is Eruptive Activity Self-Similarly Multi-Scaled?

open access: yes, 2010
Observations from the X-ray telescope (XRT) on Hinode are used to study the nature of X-ray bright points, sources of coronal jets. Several jet events in the coronal holes are found to erupt from small-scale, S-shaped bright regions.
Archontis   +29 more
core   +1 more source

Expansion Speed of Coronal Mass Ejections

open access: yesSolar Physics, 2009
A large set of limb coronal mass ejections (CMEs) are used to determine the accurate relationship between radial (V rad) and expansion (V exp) speeds of CMEs. It is demonstrated that this relation is exceptionally well described by the function f(w)=1/2(1+cot w), representing a full cone model for the CME
Michałek, Grzegorz   +2 more
openaire   +2 more sources

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