Results 11 to 20 of about 274,087 (189)

Observational evidence for the plausible linkage of Equatorial Electrojet (EEJ) electric field variations with the post sunset F-region electrodynamics [PDF]

Annales Geophysicae, 2009
The paper is based on a detailed observational study of the Equatorial Spread F (ESF) events on geomagnetically quiet (Ap≤20) days of the solar maximum (2001), moderate (2004) and minimum (2006) years using the ionograms and magnetograms from the ...
V. Sreeja, C. V. Devasia, Sudha Ravindran, Tarun Kumar Pant   +3 more
doaj   +4 more sources

Response of the equatorial ionosphere to the geomagnetic DP 2 current system [PDF]

Geophysical Research Letters, 2016
The response of equatorial ionosphere to the magnetospheric origin DP 2 current system fluctuations is examined using ground‐based multiinstrument observations.
E. Yizengaw, M. B. Moldwin, E. Zesta, M. Magoun, R. Pradipta, C. M. Biouele, A. B. Rabiu, O. K. Obrou, Z. Bamba, E. R. dePaula   +9 more
doaj   +2 more sources

The Long‐Term Trend of the Equatorial Electrojet Over Indian Sector

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
The upper‐atmosphere cooling trend is well documented, while the long‐term trend of the ionospheric electrodynamics remains poorly understood. Using two geomagnetic observation data sets over Indian sector, we analyze the long‐term trend of the monthly ...
Rui-Long Zhang, Xu Zhou, Yu-Zhou Wang, Li-Bo Liu, Yi-Ding Chen, H. Le   +5 more
semanticscholar   +2 more sources

Ionospheric Mechanisms Leading to Plasma‐Bubble Zonal Drift Reversal and Deformation During the 12 November 2025 Geomagnetic Storm

Space Weather
We present a multi‐instrument analysis of the ionospheric response to the intense geomagnetic storm of 12 November 2025 over the American sector, with emphasis on the longitudinally asymmetric deformation, latitudinal expansion, and zonal drift reversal ...
G. A. S. Picanço, I. Galkin, P. Song, E. Astafyeva, L. C. A. Resende, J. P. Marchezi, L. A. daSilva, P. R. Fagundes, C. M. Denardini, C. Martinis, A. M. Santos, V. G. Pillat, A. J. Coster, A. L. Christovam, S. R. Laranja, M. A. M. Lopes   +15 more
doaj   +2 more sources

Bending of Light by Magnetars within Generalized Born-Infeld Electrodynamics: Insights from the Gauss-Bonnet Theorem

Symmetry
We compute the weak bending angle of light within generalised Born–Infeld electrodynamics as it passes through the equatorial plane of a magnetic dipole.
N. Beissen, T. Yernazarov, M. Khassanov, S. Toktarbay, A. Taukenova, Amankhan Talkhat   +5 more
semanticscholar   +2 more sources

The ultra-fast Kelvin waves in the equatorial ionosphere: observations and modeling [PDF]

Annales Geophysicae, 2013
The main purpose of this study is to investigate the vertical coupling between the mesosphere and lower thermosphere (MLT) region and the ionosphere through ultra-fast Kelvin (UFK) waves in the equatorial atmosphere.
A. N. Onohara, I. S. Batista, H. Takahashi   +2 more
doaj   +1 more source

Electrodynamics of the Equatorial Evening Ionosphere: 2. Conductivity Influences on Convection, Current, and Electrodynamic Energy Flow

Journal of Geophysical Research: Space Physics, 2015
Arthur D Richmond
exaly   +2 more sources

Constraining study of circular orbits and accretion disk around nonlinear electrodynamics black hole [PDF]

Journal of Cosmology and Astroparticle Physics, 2023
The very latest observation of M87 supermassive black hole (BH) by the Event Horizon Telescope (EHT) provides the accretion onto BHs is an interesting study in the theory of gravity.
A. Ditta, G. Mustafa, G. Abbas, F. Atamurotov, K. Jusufi   +4 more
semanticscholar   +1 more source

Day‐to‐Day Variability of Prereversal Enhancement in the Vertical Ion Drift in Response to Large‐Scale Forcing From the Lower Atmosphere

Space Weather, 2020
Equatorial plasma bubbles (EPBs) are plasma density irregularities found in the equatorial ionosphere after sunset and are closely related to the upward E×B drift before it reverses to the generally downward direction at nighttime, referred to as ...
Han‐Li Liu
doaj   +1 more source

Thermospheric Neutral Winds as the Cause of Drift Shell Distortion in Earth’s Inner Radiation Belt

Frontiers in Astronomy and Space Sciences, 2021
Recent analysis of energetic electron measurements from the Magnetic Electron Ion Spectrometer instruments onboard the Van Allen Probes showed a local time variation of the equatorial electron intensity in the Earth’s inner radiation belt. The local time
Solène Lejosne, Mariangel Fedrizzi, Mariangel Fedrizzi, Naomi Maruyama, Naomi Maruyama, Richard S. Selesnick   +5 more
doaj   +1 more source