Results 71 to 80 of about 17,746 (238)

Sympathetic Coronal Mass Ejections

The Astrophysical Journal, 2003
We address the question whether there exist sympathetic coronal mass ejections (CMEs), which take place almost simultaneously in different locations with a certain physical connection. For this study, the following three investigations are performed. First, we have examined the waiting-time distribution of the CMEs that were observed by the SOHO Large ...
Y.‐J. Moon, G. S. Choe, Haimin Wang, Y. D. Park   +3 more
openaire   +1 more source

Universal Time Influence on Stormtime Magnetosphere Ionosphere Coupling

AGU Advances, Volume 7, Issue 2, April 2026.
Abstract The offset between Earth's magnetic and rotational axes introduces a diurnal dependence in the high‐latitude EUV exposure of the northern hemisphere (NH) and southern hemisphere (SH). This variation raises the question: Does the Universal Time (UT) of geomagnetic storm onset impact its geospace consequences?
Kalpesh Ghag, William Lotko, Kevin Pham, Dong Lin, Viacheslav Merkin, Anil Raghav, Michael Wiltberger   +6 more
wiley   +1 more source

How efficient are coronal mass ejections at accelerating solar energetic particles? [PDF]

, 2008
The largest solar energetic particle (SEP) events are thought to be due to particle acceleration at a shock driven by a fast coronal mass ejection (CME).
A. Vourlidas, C. M. S. Cohen, D. K. Haggerty, E. E. Chollet, G. M. Mason, Gang Li, Gary P. Zank, J. Giacalone, J. Luhmann, M. D. Looper, M. I. Desai, Olga Verkhoglyadova, Qiang Hu, R. A. Mewaldt, R. P. Lin, R. S. Selesnick   +15 more
core   +1 more source

Impact of Solar Irradiance on Storm‐Time Thermospheric Mass Density Response

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract As a key parameter in the externally forced ionosphere–thermosphere (IT) system, mass density response to storms is affected by the prevailing solar irradiance. To better understand this relationship, we examine mass density responses to the same storm but with different background solar irradiance levels.
Simin Zhang, Liying Qian, Nicholas Pedatella, Eric Sutton, Noah Peterson, Thomas Berger   +5 more
wiley   +1 more source

Hemispheric Distribution of Halo Coronal Mass Ejection Source Locations

The Astrophysical Journal
The hemispheric asymmetry of solar activity is one of the essential physical consequences of the interior dynamo process. However, the hemispheric distribution of halo coronal mass ejection (HCME) source locations has not been investigated in detail ...
XiaoJuan Zhang, LinHua Deng, Hui Deng, Ying Mei, Feng Wang   +4 more
doaj   +1 more source

Mirror Mode Mediated EMIC Wave Generation in the Magnetosheath

Geophysical 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, Chen Shi, Xiaoman Liu, Lei Dai, Jinsong Zhao, Xin Tao   +5 more
wiley   +1 more source

Partially Erupted Prominence Material as a Diagnostic of Coronal Mass Ejection Trajectory

Space Weather, 2023
Coronal mass ejections (CMEs) are energetic releases of large‐scale magnetic structures from the Sun. CMEs can have impacts on spacecraft and at Earth. This trajectory is typically assumed to be radial, but often the CME moves outward with some spatial ...
B. A. Hovis‐Afflerbach, B. J. Thompson, E. I. Mason   +2 more
doaj   +1 more source

Models for coronal mass ejections [PDF]

Journal of Atmospheric and Solar-Terrestrial Physics, 2011
Coronal mass ejections (CMEs) play a key role in space weather. The mathematical modelling of these violent solar phenomena can contribute to a better understanding of their origin and evolution and as such improve space weather predictions. We review the state-of-the-art in CME simulations, including a brief overview of current models for the ...
Jacobs, Carla, Poedts, Stefaan
openaire   +1 more source

Lawnmower Poetry and the Poetry of Lawnmowers

Critical Quarterly, EarlyView.
Francesca Gardner
wiley   +1 more source

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

Geophysical 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, In‐Sun Song, Masaru Kogure, Geonhwa Jee, Jeong‐Han Kim, Changsup Lee, Eunsol Kim, Young‐Bae Ham, Hosik Kam   +8 more
wiley   +1 more source