Results 111 to 120 of about 17,746 (238)

A Coronal Hole's Effects on CME Shock Morphology in the Inner Heliosphere

, 2012
We use STEREO imagery to study the morphology of a shock driven by a fast coronal mass ejection (CME) launched from the Sun on 2011 March 7. The source region of the CME is located just to the east of a coronal hole. The CME ejecta is deflected away from
A. P. Rouillard, B. E. Wood, Bevington, Billings, C.-C. Wu, Chen, D. G. Socker, Gibson, Krall, Press, R. A. Howard, Sheeley, Shu, Thernisien, Wood, Wood, Wood   +16 more
core   +1 more source

Strong Polar Ionospheric Electron Density Depletion Under Prolonged Northward IMF Bz Condition

Earth and Space Science, Volume 13, Issue 3, March 2026.
Abstract Previous studies have primarily focused on high‐latitude ionospheric‐thermospheric (I‐T) variabilities under southward interplanetary magnetic field (IMF) conditions, while rare studies have investigated the I‐T responses to due northward Bz (NBz), especially in the presence of strong IMF By conditions.
Tianyu Cao, Yifan Lu, Jing Liu, Shuhan Li   +3 more
wiley   +1 more source

A Workflow-Oriented Approach To Propagation Models In Heliophysics

Computer Science, 2014
The Sun is responsible for the eruption of billions of tons of plasma andthe generation of near light-speed particles that propagate throughout the solarsystem and beyond.
Gabriele Pierantoni, Eoin Carley, Jason Byrne, David Perez-Suarez, Peter T. Gallagher   +4 more
doaj   +1 more source

On the Freeze‐In Distance of Solar Wind Fluid Entropy Variability in the Corona

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract The strong correlation between solar wind entropy and the frozen‐in ion charge state ratio O7+/O6+ ${\mathrm{O}}^{7+}/{\mathrm{O}}^{6+}$ indicates that entropy variability on timescales of hours or longer is preserved from its solar source. This prompts the question: where in the solar atmosphere does this entropy variability come from, and at
Aidan J. Nakhleh, Nicholeen M. Viall, Susan T. Lepri, Jim M. Raines   +3 more
wiley   +1 more source

Interaction between a Coronal Mass Ejection and Comet 67P/Churyumov–Gerasimenko

The Astrophysical Journal
The interaction between a coronal mass ejection (CME) and a comet has been observed several times by in situ observations from the Rosetta Plasma Consortium, which is designed to investigate the cometary magnetosphere of comet 67P/Churyumov–Gerasimenko ...
Zhenguang Huang, Gábor Tóth, Tamas I. Gombosi, Michael R. Combi, Xianzhe Jia, Yinsi Shou, Valeriy Tenishev, Kathrin Altwegg, Martin Rubin   +8 more
doaj   +1 more source

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

, 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., Farrugia, Charles J., Galvin, Antoinette B., Kajdič, Primož, Kilpua, Emilia K. J., Lavraud, Benoit, Liu, Ying D., Lugaz, Noé, Luhmann, Janet G., Möstl, Christian, Nitta, Nariaki V.   +10 more
core   +1 more source

Compression of Mercury's Dayside Magnetopause to the Surface: A Three‐Dimensional Model of Magnetospheric Structure and Dynamics

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract We apply a hybrid model (kinetic ions, fluid electrons) to provide context for MErcury Surface Space ENvironment, GEochemistry, and Ranging (MESSENGER) observations of Disappearing Dayside Magnetosphere (DDM) events at Mercury. Such events have been observed on four occasions and are caused by Coronal Mass Ejections completely removing the ...
Georg Glebe, C. Michael Haynes, Sven Simon   +2 more
wiley   +1 more source

SIP-IFVM: An Observation-based Magnetohydrodynamic Model of a Coronal Mass Ejection

The Astrophysical Journal Supplement Series
Currently, achieving a balance between computational efficiency, accuracy, and numerical stability in coronal mass ejection (CME) simulations, particularly in the sub-Alfvénic coronal region, remains a significant challenge.
Hao P. Wang, Jin H. Guo, S. Poedts, A. Lani, L. Linan, T. Baratashvili, Li P. Yang, H.-J. Jeong, Wen W. Wei, Cai X. Li, Y. Yang, Yu C. Li, Hao Wu, Yang Guo, B. Schmieder   +14 more
doaj   +1 more source

Propagation of an Earth-directed coronal mass ejection in three dimensions

, 2010
Solar coronal mass ejections (CMEs) are the most significant drivers of adverse space weather at Earth, but the physics governing their propagation through the heliosphere is not well understood.
A Horwitz, A Horwitz, A Thernisien, B Kliem, B Vršnak, B Vršnak, B Vršnak, BE Wood, BP Filippov, C-H Lin, CA deKoning, CA Young, CJ Davis, CJ Davis, CJ Schrijver, CN Arge, D Odstrčil, DB Berdichevsky, E Chané, EKJ Kilpua, GW Pneuman, H Cremades, H Xie, H Xie, J Chen, JA González-Esparza, JP Byrne, M Banaszkiewicz, M Mierla, MJ Aschwanden, ML Kaiser, N Gopalswamy, N Gopalswamy, N Srivastava, P Démoulin, P Riley, PC Liewer, PJ Cargill, PJ Cargill, R Prangé, R Schwenn, RA Howard, RM MacQueen, S Yashiro, SA Maloney, SJ Tappin, SK Antiochos, TA Howard, TA Howard, TG Moran, V Bothmer, VJ Pizzo, XP Zhao, Y Liu   +53 more
core   +1 more source

Intense Ground Magnetic Perturbations During the 2024 May and October Geomagnetic Storms

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract The May and October 2024 geomagnetic storms represent two of the most intense space weather events of Solar Cycle 25. While differing in global intensity, both storms produced extreme ionospheric disturbances, including equatorward auroral expansion to mid‐latitudes and rapid geomagnetic variations (dH/dt $\text{dH}/\text{dt}$).
P. De Michelis, E. Consolini, F. Giannattasio, G. Consolini   +3 more
wiley   +1 more source