Results 31 to 40 of about 49,445 (284)
Flux Accretion and Coronal Mass Ejection Dynamics [PDF]
Solar Physics, 2017 Coronal mass ejections (CMEs) are the primary drivers of severe space weather disturbances in the heliosphere. Models of CME dynamics have been proposed that do not fully include the effects of magnetic reconnection on the forces driving the ejection ...
B. Welsch
semanticscholar +1 more source
COMPOSITION OF CORONAL MASS EJECTIONS [PDF]
The Astrophysical Journal, 2016 ABSTRACT We analyze the physical origin of plasmas that are ejected from the solar corona. To address this issue, we perform a comprehensive analysis of the elemental composition of interplanetary coronal mass ejections (ICMEs) using recently released elemental composition data for Fe, Mg, Si, S, C, N, Ne, and He as compared to O and H ...
Susan T. Lepri +6 more
openaire +4 more sources
Understanding the Origins of Problem Geomagnetic Storms Associated with “Stealth” Coronal Mass Ejections [PDF]
Space Science Reviews, 2021 Geomagnetic storms are an important aspect of space weather and can result in significant impacts on space- and ground-based assets. The majority of strong storms are associated with the passage of interplanetary coronal mass ejections (ICMEs) in the ...
N. Nitta +16 more
semanticscholar +1 more source
Energetics of Coronal Mass Ejections [PDF]
Proceedings of the International Astronomical Union, 2004 To appear in proceedings of IAU Symposium 226, Coronal and Stellar Mass Ejections, Sept 13-17 2004 ...
Angelos Vourlidas, Prasad Subramanian
openaire +3 more sources
The Eruption of a Small-scale Emerging Flux Rope as the Driver of an M-class Flare and of a Coronal Mass Ejection [PDF]
, 2017 Solar flares and coronal mass ejections are the most powerful explosions in the Sun. They are major sources of potentially destructive space weather conditions. However, the possible causes of their initiation remain controversial.
Xiaoli Yan +8 more
semanticscholar +1 more source
Simulation study on the propagation process of coronal mass ejection
地球与行星物理论评, 2022 Coronal mass ejection (CME) is a kind of space weather phenomenon caused by the intense activity of the sun. Important issues of concern to the space weather community include understanding the propagation and evolution of a particular CME in the corona ...
Mengxuan Ma, Fang Shen, Yousheng Liu
doaj +1 more source
RELATIONSHIP OF EUV IRRADIANCE CORONAL DIMMING SLOPE AND DEPTH TO CORONAL MASS EJECTION SPEED AND MASS [PDF]
, 2016 Extreme ultraviolet (EUV) coronal dimmings are often observed in response to solar eruptive events. These phenomena can be generated via several different physical processes.
J. Mason +5 more
semanticscholar +1 more source
Solar Coronal Mass Ejections [PDF]
Symposium - International Astronomical Union, 1990 In addition to the more or less steady solar wind, the Sun also ejects mass in highly time dependent events taking place in the corona once every few days at solar activity minimum and as often as three times a day at solar activity maximum (Hundhausen 1988, Low 1986).
D. G. Sime +2 more
openaire +2 more sources
A model for stealth coronal mass ejections [PDF]
Journal of Geophysical Research: Space Physics, 2016 AbstractStealth coronal mass ejections (CMEs) are events in which there are almost no observable signatures of the CME eruption in the low corona but often a well‐resolved slow flux rope CME observed in the coronagraph data. We present results from a three‐dimensional numerical magnetohydrodynamics (MHD) simulation of the 1–2 June 2008 slow streamer ...
Lynch, B. +6 more
openaire +6 more sources
Proton beam velocity distributions in an interplanetary coronal mass ejection [PDF]
Annales Geophysicae, 2009 The plasma and magnetic-field instruments on the Helios 2 spacecraft, which was on 3 April 1979 located at 0.68 AU, detected an interplanetary coronal mass ejection (ICME) that revealed itself by the typical signature of magnetic field rotation.
E. Marsch, S. Yao, C.-Y. Tu
doaj +1 more source