Results 91 to 100 of about 3,282 (199)

Coronal Mass Ejections Deflected by Newly Emerging Flux: A Combined Analytic and Numerical Study

open access: yesThe Astrophysical Journal
Newly emerging flux (NEF) has been widely studied as a trigger of solar filament eruptions, but its influence on the subsequent dynamics remains poorly explored.
Yuhao Chen   +10 more
doaj   +1 more source

On a Coronal Blowout Jet: The First Observation of a Simultaneously Produced Bubble-like CME and a Jet-like CME in a Solar Event

open access: yes, 2012
The coronal blowout jet is a peculiar category among various jet phenomena, of which the sheared base arch, often carrying a small filament, experiences a miniature version of blowout eruption that produces large-scale coronal mass ejection (CME).
Deng, Yuanyong   +3 more
core   +1 more source

Risk Assessment of the Ground Magnetic Response to the March and April 2023 Geomagnetic Storms Using Geomagnetically Induced Currents Indices

open access: yesSpace Weather, Volume 23, Issue 4, April 2025.
Abstract We analyzed the solar origin and ground response during the severe geomagnetic storms (GSs) of 23–24 March (GS1) and 23–24 April 2023 (GS2) using Geomagnetically Induced Currents Indices (GIC indices) computed from geomagnetic field data. The GSs were initiated by erupting filaments and associated slow (fast) halo coronal mass ejections on 20 ...
Paul O. Amaechi   +7 more
wiley   +1 more source

A blowout jet associated with one obvious extreme-ultraviolet wave and one complicated coronal mass ejection event

open access: yes, 2018
In this paper, we present a detailed analysis of a coronal blowout jet eruption which was associated with an obvious extreme-ultraviolet (EUV) wave and one complicated coronal mass ejection (CME) event based on the multi-wavelength and multi-view-angle ...
Abidin, Z. Z.   +7 more
core   +1 more source

Structure and Dynamics of Erupting Solar Prominences Using the Rolling Hough Transform: Toward a Feature-oriented Classification

open access: yesThe Astrophysical Journal
The classification of solar prominences has proven to be challenging, due to their diverse morphologies and dynamical behavior. Complexity is heightened when considering eruptive prominences, where the dynamics demand methods capable of capturing ...
Harry Birch, Stéphane Régnier
doaj   +1 more source

First Observations of a Geomagnetic Superstorm With a Sub‐L1 Monitor

open access: yesSpace Weather, Volume 23, Issue 3, March 2025.
Abstract Forecasting the geomagnetic effects of solar coronal mass ejections (CMEs) is currently an unsolved problem. CMEs, responsible for the largest values of the north‐south component of the interplanetary magnetic field, are the key driver of intense and extreme geomagnetic activity.
E. Weiler   +12 more
wiley   +1 more source

Earth's Alfvén Wings: Unveiling Dynamic Variations of Field‐Line Topologies With Electron Distributions

open access: yesGeophysical Research Letters, Volume 52, Issue 3, 16 February 2025.
Abstract The magnetic cloud (MC) of the Coronal Mass Ejection on 24 April 2023, contains sub‐Alfvénic solar wind, transforming Earth's magnetosphere from conventional bow‐shock magnetotail configuration to Alfvén wings. Utilizing measurements from the Magnetosphere Multiscale (MMS) mission, we present for the first time electron distribution signatures
Harsha Gurram   +8 more
wiley   +1 more source

Two-sided Loop Solar Jet Driven by the Eruption of a Small Filament in a Big Filament Channel

open access: yesThe Astrophysical Journal
Similar to the cases of anemone jets, two-sided loop solar jets can also be produced by either flux emergence from the solar interior or small-scale filament eruptions.
Jiayan Yang   +4 more
doaj   +1 more source

The Triggering Mechanism of coronal jets and CMEs: Flux Cancelation [PDF]

open access: yes
Recent investigations show that coronal jets are driven by the eruption of a small-scale filament (10,000 - 20,000 km long, called a minifilament) following magnetic flux cancelation at the neutral line underneath the minifilament. Minifilament eruptions
Moore, Ronald L.   +2 more
core   +1 more source

A Titov-Dèmoulin type eruption generator for finite pressure solar filaments

open access: yes, 2023
The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
Sokolov, I., Gombosi, T., Zhao, L.
openaire   +2 more sources

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