Results 81 to 90 of about 4,351 (193)

Narrow Coronal Mass Ejections

open access: yesThe Astrophysical Journal, 2001
Narrow coronal mass ejections (CMEs), defined arbitrarily as events whose apparent angular width is 15° or less, are a small subset of all CMEs. Little is known of the properties of these events and whether these properties differ from those of the larger, more typical CMEs. We have included in this study 15 narrow CMEs observed in the period from 1999
Holly R. Gilbert   +4 more
openaire   +1 more source

Implications of Using Spheroidal “Cone Model” CMEs in Solar‐Wind Models

open access: yesSpace Weather
Space‐weather forecasting requires advanced prediction of the arrival time and properties of coronal mass ejections (CMEs) in near‐Earth space. Kinematic properties of CMEs close to the Sun—such as speed, direction and angular width—are routinely ...
M. J. Owens   +7 more
doaj   +1 more source

Prompt Response of the Dayside Magnetosphere to Discrete Structures Within the Sheath Region of a Coronal Mass Ejection. [PDF]

open access: yesGeophys Res Lett, 2021
Blum LW   +6 more
europepmc   +1 more source

MP‐DualNet: A Dual‐Branch Deep Learning Approach for Magnetopause Boundary Detection Using Simulated SXI Images

open access: yesSpace Weather, Volume 24, Issue 10, October 2026.
Abstract The Earth's magnetopause is a key boundary governing solar wind–magnetosphere coupling. The Solar wind Magnetosphere Ionosphere Link Explorer (SMILE) mission will provide global soft X‐ray imaging of the magnetosphere through solar wind charge exchange (SWCX) emission, offering a new opportunity for remote sensing of magnetopause dynamics ...
Cheng Zhong   +7 more
wiley   +1 more source

A Near‐Real‐Time Deep‐Learning Solar Flare Forecasting System Supported by SDO/HMI and ASO‐S/FMG Magnetograms

open access: yesSpace Weather, Volume 24, Issue 10, October 2026.
Abstract This study develops and evaluates five deep learning models, including image‐based (CNN, SwinT) and video‐based (CNN‐LSTM, SwinT‐LSTM, Video SwinT), to forecast ≥ ${\ge} $M‐class flares within the next 24 hr using cross‐validation (CV) data sets.
Yongshang Lv   +17 more
wiley   +1 more source

Physics‐Based Ensemble of Models for F2 Peak Parameters of the Ionosphere: Comparison With COSMIC‐2 Measurements

open access: yesSpace Weather, Volume 24, Issue 10, October 2026.
Abstract Space weather events can significantly alter the ionospheric electron density, affecting signal transmission and navigation accuracy in satellite‐based systems. Consequently, there is an urgent need for reliable forecasting of the Thermosphere‐Ionosphere (TI) system.
J. Pereira   +5 more
wiley   +1 more source

Modeling Polarized Radio Sounding Observations of a Coronal Mass Ejection

open access: yesThe Astrophysical Journal
Coronal mass ejections (CMEs) evolve significantly as they propagate from the Sun to the Earth, so remote observations of their changes in speed, strength of the magnetic field, density, and overall structure are critical for predicting their arrival ...
Elizabeth A. Jensen   +7 more
doaj   +1 more source

Motor Cortex Hyperexcitability Is Coupled to Neuromuscular Dysfunction in Aged Mice

open access: yesAging Cell, Volume 25, Issue 10, October 2026.
Aged mice exhibited impaired motor behavior and neuromuscular hypoexcitability, yet cortical output to muscle was enhanced, and motor cortex layer V pyramidal neurons were hyperexcitable, with altered synaptic inputs and excitability‐related transcriptional changes.
Jose A. Viteri   +11 more
wiley   +1 more source

Identifying Coronal Mass Ejection Active Region Sources: An Automated Approach

open access: yesThe Astrophysical Journal
Identifying the source regions of coronal mass ejections (CMEs) is crucial for understanding their origins and improving space weather forecasting. We present an automated algorithm for matching CMEs detected by the Large Angle Spectrometric Coronagraph ...
Julio Hernandez Camero   +2 more
doaj   +1 more source

The coronal mass ejection productivity of solar active region 13664/8

open access: yesAstronomy & Astrophysics
Context. In May 2024, NOAA active region (AR) complex 13664/8 appeared as one of the most productive regions of the current solar cycle. It produced 12 X-class flares and over 20 coronal mass ejections (CMEs), triggering the strongest geomagnetic storm ...
Liu Lijuan   +4 more
doaj   +1 more source

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