Results 101 to 110 of about 54,745 (274)
Coalescence of Magnetic Flux Ropes Within Interplanetary Coronal Mass Ejections: Multi-cases Studies
Frontiers in Physics, 2019 Coronal mass ejections (CMEs) are intense solar explosive eruptions and have significant impact on geomagnetic activities. It is important to understand how CMEs evolve as they propagate in the solar-terrestrial space.
Yan Zhao +7 more
doaj +1 more source
History and development of coronal mass ejections as a key player in solar terrestrial relationship [PDF]
Geoscience Letters, 2016 Coronal mass ejections (CMEs) are relatively a recently discovered phenomenon—in 1971, some 15 years into the Space Era. It took another two decades to realize that CMEs are the most important players in solar terrestrial relationship as the root cause ...
N. Gopalswamy
semanticscholar +1 more source
Open Magnetic Field Lines Partition Auroral Oval Segments Into Transpolar Arcs
Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.Abstract Transpolar arcs (TPAs) are auroral structures spanning the polar cap. One type appears in conjugate hemispheres and is thought to be located on closed field lines, but how closed flux enters the open polar cap remains debated. We address this using observation and simulation of conjugate TPAs after an interplanetary magnetic field (IMF) By ...
Xin‐Ming Chen +14 more
wiley +1 more source
, 2005 Suprathermal electrons focused along magnetic field lines, called the strahl, carry heat flux away from the Sun. Various factors can cause heat flux dropouts (HFDs), including times when the strahl almost vanishes.
Larson, DE +5 more
core +1 more source
Expansion Speed of Coronal Mass Ejections
Solar Physics, 2009 A large set of limb coronal mass ejections (CMEs) are used to determine the accurate relationship between radial (V rad) and expansion (V exp) speeds of CMEs. It is demonstrated that this relation is exceptionally well described by the function f(w)=1/2(1+cot w), representing a full cone model for the CME
Michałek, Grzegorz +2 more
openaire +2 more sources
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 ...
T. H. Zurbuchen +5 more
openaire +2 more sources
Plasma Stability in Turbulent Magnetic Flux Ropes Downstream of a Collisionless Shock
Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.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
ERDHEIM‐Chester Disease: Two Fatal Cases With Unusual Presentations
Clinical Case Reports, Volume 14, Issue 6, June 2026.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
Space weather and coronal mass ejections
, 2013 Space weather has attracted a lot of attention in recent times. Severe space weather can disrupt spacecraft, and on Earth can be the cause of power outages and power station failure.
Howard, Tim
core +1 more source
Coronal "Wave": Magnetic Footprint of a Coronal Mass Ejection?
The Astrophysical Journal, 2007 We investigate the properties of two "classical" EUV Imaging Telescope (EIT) coronal waves. The two source regions of the associated coronal mass ejections (CMEs) possess opposite helicities, and the coronal waves display rotations in opposite senses.
Attrill, Gemma D. R. +3 more
openaire +2 more sources