Results 41 to 50 of about 4,088,052 (157)

Reconfiguration of Mercury's Exosphere During Strong Space Weather Events

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Mercury is exposed to various space weathering processes, which alter the surface and cause emission of atoms and molecules into the exosphere. The exosphere thus allows remote insights into the surface composition and erosion processes, with the emission of refractory elements such as Ca and Mg typically being dominated by micrometeoroid ...
P. S. Szabo, S. R. Carberry Mogan, A. R. Poppe, S. Fatemi, W. J. Sun, J. T. Zhao   +5 more
wiley   +1 more source

IMF By‐Controlled Dawn–Dusk and Hemispheric Asymmetries of Kelvin–Helmholtz Waves and Reconnection Geometry Under Negative Dipole Tilt

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Along with magnetic reconnection, Kelvin‐Helmholtz (KH) waves are the main mechanisms controlling the solar wind‐magnetosphere interaction, enabling plasma transport into the magnetosphere due to secondary reconnection, diffusion and wave‐particle interactions.
L. Holappa, K. Nykyri, J. Laitinen, B. Burkholder   +3 more
wiley   +1 more source

Numerical Investigations of Low‐Latitude Ground Magnetic Fields Due To Cavity Mode Oscillations

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract Pi2 oscillations are known to be associated with cavity mode oscillations (CMOs) in the inner magnetosphere at low latitudes. CMOs can also be excited by interplanetary shocks on the dayside. We present results from a global linear MHD wave model in spherical coordinates that allows us to analyze these waves at equatorial latitudes.
K. Majmudar, R. L. Lysak, K. Takahashi
wiley   +1 more source

On the Effects of the Solar Wind Structure in the Global Distribution of dBH/dt ${\text{dB}}_{H}/\text{dt}$ Spikes During Geomagnetic Storms

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract Variations in the solar wind, particularly those associated with interplanetary coronal mass ejections (ICMEs) and high‐speed streams (HSSs), drive geomagnetic disturbances that produce rapid changes in the ground magnetic field. These variations, commonly quantified by the time derivative of the horizontal magnetic field dBH/dt $\left({\text ...
José P. Marchezi, Amy Keesee, Michael Coughlan, Raman Mukundan, Victor Pinto, Ligia A. Da Silva, Livia R. Alves, Hyunju Connor, Don Hampton   +8 more
wiley   +1 more source

Automated Detection of Coronal Mass Ejections with Few-shot Learning

The Astrophysical Journal Supplement Series
Coronal mass ejections (CMEs) are a primary driver of severe space weather impacts, yet accurate delineation of CME structure in coronagraph images remains challenging.
Xin Liu, Jiajia Liu, Shuhua Song, Ye Jiang, Xin Huang, Zhanpeng Xu, Robertus Erdélyi, Yimin Wang   +7 more
doaj   +1 more source

Cosmic Ray Anisotropy Generated by the June 22nd 2015 Interplanetary Events

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract On 22 June 2015, the near Earth interplanetary space was perturbed by a series of high‐speed streamers and interplanetary coronal mass ejections associated with an active region and two low‐latitude coronal holes. The interaction of these disturbances gave rise to the complex solar wind structure observed at 1 au.
A. Lara, K. P. Arunbabu, T. Niembro
wiley   +1 more source

Understanding the Evolution of the Three-part Structure of a Coronal Mass Ejection Using Multiviewpoint Observations

The Astrophysical Journal
The three-part structure (bright front, dark cavity, and bright core) of coronal mass ejections (CMEs) in white-light (WL) coronagraphic images has been studied for decades.
Bin Zhuang, Noé Lugaz, Manuela Temmer, Tingyu Gou, Carlos R. Braga, Joan Burkepile   +5 more
doaj   +1 more source

Collisionless Shocks: Contemporary State After Three Quarters of a Century of Research

Reviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract The collisionless shock research started in the late 1950s. Since then, plenty of data have been accumulated due to the large number of missions in the heliosphere, providing in situ measurements of the fields and particles. The quality of these measurements has vastly improved, especially in the last two decades.
M. Gedalin, M. Balikhin, V. Krasnoselskikh   +2 more
wiley   +1 more source

Solar energetic particle events: phenomenology and prediction

, 2002
Solar energetic particle events can cause major disruptions to the operation of spacecraft in earth orbit and outside the earth's magnetosphere and have to be considered for EVA and other manned activities. They may also have an effect on radiation doses
Patrick, G.J., Patrick, G., G. J. Patrick, Gabriel, S.B., S. B. Gabriel   +4 more
core   +1 more source

3D reconstruction of coronal loops by the principal component analysis [PDF]

, 2013
Knowing the three dimensional structure of plasma filaments in the uppermost part of the solar atmosphere, known as coronal loops, and especially their length, is an important parameter in the wave-based diagnostics of this part of the Sun.
Nisticò, Giuseppe, Valery Nakariakov, Giuseppe Nisticò, Erwin Verwichte, Valery M. Nakariakov, Verwichte, E. (Erwin), Nakariakov, V. M. (Valery M.)   +6 more
core   +1 more source