Results 81 to 90 of about 6,461 (252)
We report observations of the total solar eclipse of 14 December 2020, during which a coronal mass ejection was seen to propagate. A comprehensive set of photographs covering a high dynamic range of exposure enabled characterization of its dimensions ...
Abramson, Guillermo, Guillermo Abramson
core +1 more source
Coronal Mass Ejections: Observations [PDF]
Solar eruptive phenomena embrace a variety of eruptions, including flares, solar energetic particles, and radio bursts. Since the vast majority of these are associated with the eruption, development, and evolution of coronal mass ejections (CMEs), we focus on CME observations in this review. CMEs are a key aspect of coronal and interplanetary dynamics.
David F. Webb, Timothy A. Howard
openaire +2 more sources
Plasma Stability in Turbulent Magnetic Flux Ropes Downstream of a Collisionless Shock
Abstract How pre‐existing solar wind turbulence, and coherent structures such as magnetic flux ropes within it, influence the transition of plasma across a shock is still poorly understood. Recently, in situ observations from the Earth's magnetosheath have been used to study plasma stability against ion kinetic instabilities. In the turbulent flow, the
L. Vuorinen +3 more
wiley +1 more source
Hemispheric Distribution of Halo Coronal Mass Ejection Source Locations
The 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
Dynamic disappearance of prominences and their geoeffectiveness [PDF]
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
ERDHEIM‐Chester Disease: Two Fatal Cases With Unusual Presentations
Fluorodeoxyglucose positron emission tomography‐computed tomography (FDG PET‐CT) demonstrated markedly increased metabolic activity in serosal surfaces including pericardium, pleura, and renal fascia, as well as diffuse uptake along vascular walls, particularly the entire aorta.
Ribero‐Vargas Daniel Andres +2 more
wiley +1 more source
Developmental Profiling of Structural and Functional Maturation in Mouse Corpus Callosum
Progressive myelin development in mouse corpus callosum is accompanied by gradual decrease in oligodendrocyte precursor cell density and increase in oligodendrocyte density. Pro‐Capase‐3 is transiently upregulated in oligodendrocyte during postnatal development.
Hayes Johnson +4 more
wiley +1 more source
Coronal mass ejections (CMEs) are large-scale explosions on the Sun that expel plasma and magnetic field into the heliosphere. The interplanetary counterparts of CMEs, termed interplanetary CMEs (ICMEs), are often directly observed by spacecraft ...
Steed, K.
core
Coronal Mass Ejection–Associated Coronal Dimmings
We report on a statistical analysis of 96 CME-associated EUV coronal dimmings between 1998 and 2000. We investigate the size and location of the events and characterize how these events evolve with time. The durations typically range from 3 to 12 hr. The dimmings appear most frequently within the belt of active regions (20°-50° latitude).
A. A. Reinard, D. A. Biesecker
openaire +1 more source

