Results 121 to 130 of about 15,246 (211)

Characteristics of Magnetic Clouds and Interplanetary Coronal Mass Ejections which Cause Intense Geomagnetic Storms

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2013
We present the results of a statistical data analysis of the geo-effectiveness of non-magnetic-cloud interplanetary coronal mass ejections (ICMEs) and compare them with those of magnetic-cloud (MC) interplanetary coronal mass ejections observed during ...
Chin-Chun Wu   +3 more
doaj   +1 more source

MHD Forecasting of Solar Wind With Coronal Mass Ejections

open access: yesSpace Weather
We present a model, implemented as an online service, for predicting the speed and density of solar wind in the inner heliosphere and near Earth. The model is based on a numerical magnetohydrodynamics code PLUTO.
S. Arutyunyan   +3 more
doaj   +1 more source

Characteristics of coronal mass ejections in the near Sun interplanetary space [PDF]

open access: yesGeofísica Internacional, 2004
Based on the observations from the Large Angle and Spectrometric Coronagraph (LASCO) on board the Solar and Heliospheric Observatory (SOHO) spacecraft we studied coronal mass ejections (CME) parameters between 6 and 10 solar radii from the Sun.
Nat Gopalswamy   +2 more
doaj  

Periodicities in the occurrence of solar coronal mass ejections

open access: yes, 2009
The Fourier analysis of the CME occurrence data observed by the SOHO satellite shows significant power around 1.9 yr., 1.2 yr., 265 day, 39 day and 26 day periodicities which are almost similar to the periodicities detected in the Fourier analysis of underlying activities of the photosphere.
openaire   +2 more sources

Transport in the interplanetary medium of coronal mass ejections [PDF]

open access: yesGeofísica Internacional, 2008
Coronal mass ejections (CMEs) are large scale structures of plasma and magnetic field expelled from the Sun to the interplanetary medium and generally observed in white light coronagraphs.
A. Ventura, A. Lara, A. Borgazzi
doaj  

Solar Coronal Mass Ejection and Post–Coronal Mass Ejection Blob Formation in Two-fluid Simulations

open access: yesThe Astrophysical Journal
Abstract A coronal mass ejection (CME) and post-CME blob phenomena in the solar atmosphere, associated with shear flow and convergent flow perturbations in the photosphere, are investigated using a resistive two-fluid (electron–ion) code. It is found that there are notable deviations between the two-fluid and previous magnetohydrodynamic
J. C. Du, Z. W. Ma
openaire   +2 more sources

3D Non-equilibrium Ionization and Spectroscopic Modeling of Coronal Mass Ejections. II. CME Energy Budget

open access: yesThe Astrophysical Journal
Coronal mass ejections (CMEs) release between ≈10 ^30 and 10 ^33 erg of energy into the corona; however, their detailed energy budget is difficult to constrain.
E. M. Wraback   +3 more
doaj   +1 more source

Discrepancies in the Properties of a Coronal Mass Ejection on Scales of 0.03 au as Revealed by Simultaneous Measurements at Solar Orbiter and Wind: The 2021 November 3–5 Event

open access: yesThe Astrophysical Journal
Simultaneous in situ measurements of coronal mass ejections (CMEs), including both plasma and magnetic field, by two spacecraft in radial alignment have been extremely rare.
F. Regnault   +6 more
doaj   +1 more source

Driving Dynamical Inner‐Heliosphere Models With In Situ Solar Wind Observations

open access: yesSpace Weather
Accurately reconstructing the solar wind throughout the inner heliosphere is essential for understanding solar–terrestrial interactions and improving space‐weather forecasts.
M. J. Owens   +10 more
doaj   +1 more source

Workshop on Solar Activity, Solar Wind, Terrestrial Effects, and Solar Acceleration [PDF]

open access: yes
A summary of the proceedings from the workshop are presented. The areas covered were solar activity, solar wind, terrestrial effects, and solar acceleration.

core   +1 more source

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