Results 51 to 60 of about 49,445 (284)
PHYSICAL CONDITIONS OF CORONAL PLASMA AT THE TRANSIT OF A SHOCK DRIVEN BY A CORONAL MASS EJECTION [PDF]
We report here on the determination of plasma physical parameters across a shock driven by a coronal mass ejection using white light (WL) coronagraphic images and radio dynamic spectra (RDS).
R. Susino, A. Bemporad, S. Mancuso
semanticscholar +1 more source
WHY DOES THE APPARENT MASS OF A CORONAL MASS EJECTION INCREASE? [PDF]
Mass is one of the most fundamental parameters characterizing the dynamics of a coronal mass ejection (CME). It has been found that CME apparent mass measured from the brightness enhancement in coronagraphs increases during its evolution in the corona ...
Li Feng+6 more
semanticscholar +1 more source
Source Regions of Coronal Mass Ejections [PDF]
The majority of flare activity arises in active regions which contain sunspots, while CME activity can also originate from decaying active regions and even so-called quiet solar regions which contain a filament. Two classes of CME, namely flare-related CME events and CMEs associated with filament eruption are well reflected in the evolution of active ...
Schmieder, Brigitte+1 more
openaire +3 more sources
A SOLAR CORONAL JET EVENT TRIGGERS A CORONAL MASS EJECTION [PDF]
In this paper, we present multi-point, multi-wavelength observations and analysis of a solar coronal jet and coronal mass ejection (CME) event. Employing the GCS model, we obtained the real (three-dimensional) heliocentric distance and direction of the ...
Jiajia Liu+5 more
semanticscholar +1 more source
Periodicities in solar coronal mass ejections [PDF]
Mid-term quasi-periodicities in solar coronal mass ejections (CMEs) during the most recent solar maximum cycle 23 are reported here for the first time using the four-year data (February 5, 1999 to February 10, 2003) of the Large Angle Spectrometric Coronagraph (LASCO) onboard the Solar and Heliospheric Observatory (SOHO).
Yuming Wang+10 more
openaire +4 more sources
THE ROLE OF ACTIVE REGION CORONAL MAGNETIC FIELD IN DETERMINING CORONAL MASS EJECTION PROPAGATION DIRECTION [PDF]
We study the role of the coronal magnetic field configuration of an active region (AR) in determining the propagation direction of a coronal mass ejection (CME).
Rui Wang+5 more
semanticscholar +1 more source
Observations of Coronal Mass Ejections with the Coronal Multichannel Polarimeter [PDF]
The Coronal Multichannel Polarimeter (CoMP) measures not only the polarization of coronal emission, but also the full radiance profiles of coronal emission lines. For the first time, CoMP observations provide high-cadence image sequences of the coronal line intensity, Doppler shift and line width simultaneously in a large field of view. By studying the
G. de Toma+5 more
openaire +5 more sources
Interplanetary Propagation Behavior of the Fast Coronal Mass Ejection on 23 July 2012 [PDF]
The fast coronal mass ejection (CME) on 23 July 2012 caused attention because of its extremely short transit time from the Sun to 1 AU, which was shorter than 21 h.
M. Temmer, N. Nitta
semanticscholar +1 more source
The relationship of coronal mass ejections to streamers [PDF]
We have examined images from the Large‐Angle and Spectrometric Coronagraph (LASCO) to study the relationship of coronal mass ejections (CMEs) to coronal streamers. We wish to test the suggestion [Low, 1996] that CMEs arise from flux ropes embedded in a streamer erupting and disrupting the streamer. The data span a period of 2 years near Sunspot minimum
Prasad Subramanian+4 more
openaire +4 more sources
Open magnetic flux in the polar cap almost completely disappeared and the Earth’s magnetotail was compressed into a calabash shape during the 9th April 2015 coronal mass ejection, according to magnetohydrodynamic simulations and observations from DMSP ...
Xiang-Yu Wang+13 more
doaj +1 more source