Results 71 to 80 of about 860 (113)

Electromagnetic Ion Cyclotron Waves in a Magnetic Reconnection Exhaust at Earth's Magnetopause

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract Plasma waves can initiate, regulate, or reflect magnetic reconnection efficiently converting magnetic energy into plasma energy. While waves ranging from below the ion cyclotron frequency to above the electron plasma frequency are commonly observed near reconnection sites, electromagnetic ion cyclotron (EMIC) waves—frequent in other plasma ...
Zewen Chen, Zhenpeng Su, Zhiyong Wu, Lei Dai, Tianran Sun, Binbin Tang, San Lu, Zhaoguo He, Huinan Zheng, Yuming Wang   +9 more
wiley   +1 more source

Observation of a Knotted Electron Diffusion Region in Earth's Magnetotail Reconnection

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract Magnetic reconnection is a fundamental plasma process that alters the magnetic field topology and releases magnetic energy. Most numerical simulations and spacecraft observations assume a two‐dimensional diffusion region, with the electron diffusion region (EDR) embedded in the same plane as the ion diffusion region (IDR) and a uniform guide ...
Xinmin Li, Chuanfei Dong, Hantao Ji, Chi Zhang, Liang Wang, Barbara Giles, Hongyang Zhou, Rui Chen, Yi Qi   +8 more
wiley   +1 more source

Linking Very Near‐Earth Reconnection (VNERX) to Mid‐Latitude GICs: Evidence From the 7 September 2017 Storm

Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.
Abstract Geomagnetically Induced Currents (GICs) are a hazard to power systems. In this letter, we present a case study to understand why a Sudden‐Commencement‐associated 20A GIC spike, measured at mid‐latitude in Virginia, US, increased to 30A within 2 min of interplanetary shock arrival.
Bhagyashree Waghule, Delores J. Knipp, Grant K. Stephens, David M. Malaspina   +3 more
wiley   +1 more source

Whistler Chorus Amplification in the Magnetosphere: The Nonlinear Free‐Electron Laser Model and the Ginzburg‐Landau Equation

Geophysical Research Letters, Volume 52, Issue 19, 16 October 2025.
Abstract We present a novel nonlinear model for whistler‐mode chorus amplification based on the free‐electron laser (FEL) mechanism. First, we derive the nonlinear collective variable equations for the whistler‐electron interaction. Consistent with in situ satellite observations, these equations predict that a small seed wave can undergo exponential ...
Brandon Bonham, Amitava Bhattacharjee
wiley   +1 more source

Introduction to plasma astrophysics characteristics of astrophysical plasmas. Plasma processes in the solar wind and planetary magnetospheres.

, 1988
K. Maezawa
semanticscholar   +1 more source

Empirical evidences for a planetary modulation of total solar irradiance and the TSI signature of the 1.09-year Earth-Jupiter conjunction cycle

Astrophysics and Space Science, 2013
N. Scafetta, R. Willson
semanticscholar   +1 more source

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The Metallicity Dimension of the Super Earth-cold Jupiter Correlation

Research in Astronomy and Astrophysics, 2023
The correlation between close-in super Earths and distant cold Jupiters in planetary systems has important implications for their formation and evolution. Contrary to some earlier findings, a recent study conducted by Bonomo et al.
W. Zhu 祝
semanticscholar   +1 more source

Understanding dense hydrogen at planetary conditions

Nature Reviews Physics, 2020
Materials at high pressures and temperatures are of great interest for planetary science and astrophysics, warm dense-matter physics and inertial confinement fusion research.
R. Helled, G. Mazzola, R. Redmer
semanticscholar   +2 more sources

Earth’s Magnetosphere: A Cosmic Wave-Particle Laboratory

International Conference on Electromagnetics in Advanced Applications, 2021
It has been one of the longstanding issues in astrophysics to understand how particles in the plasma domain can be boosted up in energy to relativistic energies on short time scales.
D. Baker
semanticscholar   +1 more source

Getting to know the neighbours: Earth analogues in Alpha Centauri with the TOLIMAN space telescope

Astronomical Telescopes + Instrumentation
The TOLIMAN mission will fly a low-cost space telescope designed and led from the University of Sydney. Its primary science targets an audacious outcome in planetary astrophysics: an exhaustive search for temperateorbit rocky planets around either star ...
Peter G. Tuthill, Christopher H. Betters, Max Charles, Fred Crous, Conaire Deagan, Louis Desdoigts, D. Doelman, Mark George, Kyran Grattan, O. Guyon, Thomas Holland, Peter Klupar, Connor J. Langford, K. Larkin, Clarissa J. Luk, Ben Montet, Jack Nelson, Benjamin Pope, Grace Piroscia, Frans Snik, Adam K. Taras, Alison P. Wong, S. Worden   +22 more
semanticscholar   +1 more source