Results 91 to 100 of about 1,753 (184)

Disparities in Magnetic Cloud Observations between Two Spacecraft Having Small Radial and Angular Separations near 1 au

The Astrophysical Journal
Studies for inferring the global characteristics of coronal mass ejections (CMEs) from multipoint local in situ observations have been undertaken previously, but limited studies have utilized measurements from multiple spacecraft with sufficiently small ...
Anjali Agarwal, Wageesh Mishra
doaj   +1 more source

Ultra‐Low‐L Sub‐MeV Electron Microbursts During the May 2024 Super Storm

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract During the May 2024 super storm, we identified sub‐second microburst‐type relativistic electron precipitation events at McIlwain's L∼2 $L\sim 2$ in low‐Earth orbit using the Gamma‐ray Burst Monitor (CGBM) onboard the CALorimetric Electron Telescope on the International Space Station.
Miki Kurihara, Satoshi Nakahira, Ryuho Kataoka, Yoshizumi Miyoshi, Yuto Katoh, Kazutaka Yamaoka, Yuta Kawakubo, Ken Ebisawa, Shoji Torii, Kazuhiro Yamamoto, Atsuki Shinbori, Shoya Matsuda, Yoshiya Kasahara, Fuminori Tsuchiya, Iku Shinohara, Lauren W. Blum, Alessandro Bruno   +16 more
wiley   +1 more source

Near-earth solar wind flows and related geomagnetic activity during more than four solar cycles (1963–2011)

Journal of Space Weather and Space Climate, 2012
In past studies, we classified the near-Earth solar wind into three basic flow types based on inspection of solar wind plasma and magnetic field parameters in the OMNI database and additional data (e.g., geomagnetic indices, energetic particle, and ...
Richardson Ian G., Cane Hilary V.
doaj   +1 more source

Detecting Stellar Coronal Mass Ejections via Coronal Dimming in the Extreme Ultraviolet

The Astrophysical Journal
Stellar flares and coronal mass ejections (CMEs) can strip planetary atmospheres, reducing the potential habitability of terrestrial planets. While flares have been observed for decades, stellar CMEs remain elusive.
James Paul Mason, Allison Youngblood, Kevin France, Astrid M. Veronig, Meng Jin   +4 more
doaj   +1 more source

Constraining the Mass Loss and the Kinetic Energy of Stellar Coronal Mass Ejections with Solar Far-ultraviolet Flares

The Astrophysical Journal
Stellar eruptive events, such as flares and coronal mass ejections (CMEs), can affect planetary habitability by disturbing the stability of their atmospheres.
Nuri Park, Evgenya L. Shkolnik, Joe Llama   +2 more
doaj   +1 more source

Intelligent prediction model for geoeffectiveness of coronal mass ejections

Frontiers in Astronomy and Space Sciences
Predicting the geoeffectiveness of coronal mass ejections (CMEs) is a core issue in operational space weather forecasting. In recent years, deep learning methods have been increasingly applied to CME geoeffectiveness prediction. However, existing studies
Xin Tang, Xiaohua Yang, Long Xu, Xin Huang   +3 more
doaj   +1 more source

Probing Trails of Coronal Mass Ejections near the Sun

The Astrophysical Journal
Coronal mass ejections (CMEs) are surrounded by outflows and trailed by rays. These rays are thought to arise from plasmas around CME downstream current sheets, and they can extend beyond 18 solar radii in some cases.
Carlos R. Braga, Angelos Vourlidas, Vamsee Krishna Jagarlamudi, Guillermo Stenborg   +3 more
doaj   +1 more source

Ensemble modeling of coronal mass ejection dynamics and forecasts at 1 AU with a semi-analytic flux-rope model

Astronomy & Astrophysics
Aims. This study quantifies how uncertainty in physically meaningful coronal mass ejection (CME) and solar-wind inputs propagates into forecast-relevant diagnostics from eruption through heliospheric evolution.
Stamkos S., Patsourakos S., Vourlidas A., Paouris E.   +3 more
doaj   +1 more source

MHD Forecasting of Solar Wind With Coronal Mass Ejections

Space Weather
We present a model, implemented as an online service, for predicting the speed and density of solar wind in the inner heliosphere and near Earth. The model is based on a numerical magnetohydrodynamics code PLUTO.
S. Arutyunyan, A. Kodukov, M. Subbotin, D. Pavlov   +3 more
doaj   +1 more source

Coronal mass ejections and their sheath regions in interplanetary space. [PDF]

Living Rev Sol Phys, 2017
Kilpua E, Koskinen HEJ, Pulkkinen TI.
europepmc   +1 more source