Results 101 to 110 of about 65,282 (317)
Fully Automated Plane Prescription in Cardiac MRI: A Prospective Cohort Study
Journal of Magnetic Resonance Imaging, EarlyView.ABSTRACT Background Accurate plane positioning is important for high‐quality cardiac MRI images but requires specialized training, limiting accessibility. Purpose To evaluate an automated plane positioning tool and compare it with manual planning. Study Type Prospective.
Benjamin Böttcher +10 more
wiley +1 more source
The Astrophysical Journal Supplement SeriesCoronal mass ejections (CMEs) are among the most energetic phenomena in our solar system, with significant implications for space weather. Understanding their early dynamics remains challenging due to observational limitations in the low corona.
Shantanu Jain +4 more
doaj +1 more source
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
Sympathetic Coronal Mass Ejections
The Astrophysical Journal, 2003 We address the question whether there exist sympathetic coronal mass ejections (CMEs), which take place almost simultaneously in different locations with a certain physical connection. For this study, the following three investigations are performed. First, we have examined the waiting-time distribution of the CMEs that were observed by the SOHO Large ...
Y.‐J. Moon +3 more
openaire +1 more source
THE HEIGHT EVOLUTION OF THE “TRUE” CORONAL MASS EJECTION MASS DERIVED FROM STEREO COR1 AND COR2 OBSERVATIONS [PDF]
, 2013 Using combined STEREO-A and STEREO-B EUVI, COR1, and COR2 data, we derive deprojected coronal mass ejection (CME) kinematics and CME “true” mass evolutions for a sample of 25 events that occurred during 2007 December to 2011 April.
B. Bein +4 more
semanticscholar +1 more source
, 2011 We study the solar sources of an intense geomagnetic storm of solar cycle 23 that occurred on 20 November 2003, based on ground- and space-based multiwavelength observations.
B. Schmieder +34 more
core +1 more source
DIRECT EVIDENCE FOR A FAST CORONAL MASS EJECTION DRIVEN BY THE PRIOR FORMATION AND SUBSEQUENT DESTABILIZATION OF A MAGNETIC FLUX ROPE [PDF]
, 2012 Magnetic flux ropes play a central role in the physics of coronal mass ejections (CMEs). Although a flux-rope topology is inferred for the majority of coronagraphic observations of CMEs, a heated debate rages on whether the flux ropes pre-exist or ...
S. Patsourakos +2 more
semanticscholar +1 more source
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
The dynamics of eruptive prominences
, 2014 This chapter discusses the dynamical properties of eruptive prominences in relation to coronal mass ejections (CMEs). The fact that eruptive prominences are a part of CMEs is emphasized in terms of their physical association and kinematics. The continued
Gopalswamy, Nat
core +1 more source