Results 51 to 60 of about 15,087 (215)

Observations of an extreme storm in interplanetary space caused by successive coronal mass ejections

open access: yes, 2014
Space weather refers to dynamic conditions on the Sun and in the space environment of the Earth, which are often driven by solar eruptions and their subsequent interplanetary disturbances.
Bale, Stuart D.   +10 more
core   +1 more source

Halo Coronal Mass Ejections during Solar Cycle 24: reconstruction of the global scenario and geoeffectiveness [PDF]

open access: yes, 2017
In this study we present a statistical analysis of 53 fast Earth-directed halo CMEs observed by the SOHO/LASCO instrument during the period Jan. 2009-Sep.
Messerotti, Mauro   +3 more
core   +4 more sources

Mirror Mode Mediated EMIC Wave Generation in the Magnetosheath

open access: yesGeophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Electromagnetic ion cyclotron (EMIC) waves and mirror modes (MMs), both driven by ion temperature anisotropy, are commonly observed in planetary magnetosheaths. Conventional explanations for their co‐occurrence are largely based on linear instability theory in proton–electron plasmas, which requires comparable growth rates for the EMIC and MM ...
Yifan Wu   +5 more
wiley   +1 more source

Mesospheric and Lower Thermospheric Responses to the May 2024 Geomagnetic Storm in the Antarctic Peninsula

open access: yesGeophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract We analyze the response of mean winds and semidiurnal tides (SDTs) in the mesosphere and lower thermosphere (MLT; ∼70–110 km altitude) to the May 2024 geomagnetic super storm, based on meteor radar (MR) observations from King Sejong Station (KSS; geographic: 62.22°S, 58.78°W; geomagnetic: 53.27°S, 10.88°E) in the Antarctic Peninsula.
Byeong‐Gwon Song   +8 more
wiley   +1 more source

The dynamics of eruptive prominences

open access: yes, 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

Fully Kinetic Simulations of Ion‐Acoustic Waves in Asymmetric Reconnection With Cold Ions

open access: yesGeophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract In collisionless plasma, ion‐acoustic wave (IAW) is an important candidate for enhancing resistivity and viscosity, yet their presence and role in magnetic reconnection remain poorly understood. Here, we employ 2.5‐D particle‐in‐cell simulations to investigate IAWs in asymmetric magnetopause reconnection involving a cold ion population ...
Liangjin Song   +9 more
wiley   +1 more source

A Deep Learning Method for Automatic Coronal Mass Ejection Feature Identification

open access: yesThe Astrophysical Journal Supplement Series
Coronal mass ejections (CMEs), intense solar eruptive phenomena, are the primary drivers of extreme space weather storms on Earth. As space activities become increasingly frequent and infrastructure more reliant on space-based systems, the rapid and ...
P. Yang, H. S. Fu, J. B. Cao, F. Shen
doaj   +1 more source

Lateral Confinement and the Remarkably Self-similar Nature of Coronal Pseudostreamer Mass Ejections

open access: yesThe 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

Deflection and Rotation of CMEs from Active Region 11158

open access: yes, 2017
Between the 13 and 16 of February 2011 a series of coronal mass ejections (CMEs) erupted from multiple polarity inversion lines within active region 11158.
A. Isavnin   +40 more
core   +1 more source

Solar Coronal Mass Ejection Modeling

open access: yes, 2014
Final presentations of the Center for Astrophysics HEA/SSP Solar Summer Intern Program.
openaire   +1 more source

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