Results 21 to 30 of about 54,745 (274)
Dynamics of coronal mass ejections [PDF]
Astronomy & Astrophysics, 2008 Context. Coronal and interplanetary propagation of coronal mass ejections (CMEs) is strongly affected by aerodynamic drag. Aims. The dependence of the drag acceleration on the mass of the CMEs is investigated to establish a quantitative empirical relationship, which might be important in semi-empirical space-weather forecasting. Methods.
Vršnak, Bojan +2 more
openaire +3 more sources
Indications of stellar coronal mass ejections through coronal dimmings [PDF]
Nature Astronomy, 2021 Coronal mass ejections (CMEs) are huge expulsions of magnetized matter from the Sun and stars, traversing space with speeds of millions of kilometres per hour.
A. Veronig +5 more
semanticscholar +1 more source
Constraining the Physical Properties of Stellar Coronal Mass Ejections with Coronal Dimming: Application to Far-ultraviolet Data of ϵ Eridani [PDF]
Astrophysical Journal, 2022 Coronal mass ejections (CMEs) are a prominent contributor to solar system space weather and might have impacted the Sun’s early angular momentum evolution. A signal diagnostic of CMEs on the Sun is coronal dimming: a drop in coronal emission, tied to the
R. Loyd +11 more
semanticscholar +1 more source
The birth of a coronal mass ejection [PDF]
Science Advances, 2019 Tiny plasmoids merge on the Sun and snowball into a stellar-sized eruption.
Tingyu Gou +4 more
openaire +4 more sources
Space Weather, 2021 Predicting the Bz magnetic field embedded within interplanetary coronal mass ejections (ICMEs), also known as the Bz problem, is a key challenge in space weather forecasting. We study the hypothesis that upstream in situ measurements of the sheath region
M. A. Reiss +8 more
doaj +1 more source
From Starspots to Stellar Coronal Mass Ejections—Revisiting Empirical Stellar Relations [PDF]
Astrophysical Journal, 2020 Upcoming missions, including the James Webb Space Telescope, will soon characterize the atmospheres of terrestrial-type exoplanets in habitable zones around cool K- and M-type stars by searching for atmospheric biosignatures.
K. Herbst +3 more
semanticscholar +1 more source
Lateral Confinement and the Remarkably Self-similar Nature of Coronal Pseudostreamer Mass Ejections
The Astrophysical Journal, 2023 Coronal mass ejections (CMEs) that originate from pseudostreamers, which separate coronal holes of the same magnetic polarity, are characterized by a narrow (∼5°–30°), fan-shaped appearance in white-light coronagraph images.
Y.-M. Wang, P. Hess
doaj +1 more source
The quest for stellar coronal mass ejections in late-type stars [PDF]
Astronomy & Astrophysics, 2019 Context. Flares and coronal mass ejections (CMEs) can have deleterious effects on their surroundings: they can erode or completely destroy atmospheres of orbiting planets over time and also have high importance in stellar evolution.
K. Vida +7 more
semanticscholar +1 more source
A census of coronal mass ejections on solar-like stars [PDF]
Monthly notices of the Royal Astronomical Society, 2020 Coronal mass ejections (CMEs) may have major importance for planetary and stellar evolution. Stellar CME parameters, such as mass and velocity, have yet not been determined statistically.
M. Leitzinger +10 more
semanticscholar +1 more source
From Pseudostreamer Jets to Coronal Mass Ejections: Observations of the Breakout Continuum [PDF]
, 2020 The magnetic breakout model, in which reconnection in the corona leads to destabilization of a filament channel, explains numerous features of eruptive solar events, from small-scale jets to global-scale coronal mass ejections (CMEs).
Pankaj Kumar +5 more
semanticscholar +1 more source