Results 121 to 130 of about 59,334 (317)

Auroral and Non‐Auroral H3+ Ion Winds at Uranus With Keck‐NIRSPEC and IRTF‐iSHELL

Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract To date, no investigation has documented ionospheric flows at Uranus. Previous investigations of Jupiter and Saturn have demonstrated that mapping ion winds can be used to understand ionospheric currents and how these connect to magnetosphere‐ionosphere coupling.
Emma M. Thomas, Tom S. Stallard, Henrik Melin, Mohammad N. Chowdhury, Luke Moore, James O’Donoghue, Rosie E. Johnson, Ruoyan Wang, Katie L. Knowles, Paola I. Tiranti, Neil Dello Russo, Ron J. Vervack Jr., Hideyo Kawakita   +12 more
wiley   +1 more source

Global current circuit structure in a resistive pulsar magnetosphere model [PDF]

, 2017
Pulsar magnetospheres have strong magnetic fields and large amounts of plasma. The structures of these magnetospheres are studied using force-free electrodynamics. To understand pulsar magnetospheres, discussions must include their outer region. However, force-free electrodynamics is limited in it does not handle dissipation.
arxiv   +1 more source

Arase In Situ Observations of High‐Frequency Electromagnetic Ion Cyclotron (EMIC) Waves in Regions Close to the Earth During the May 2024 Storm

Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract During the May 2024 storm, the minimum Dst index was approximately −412 nT, marking the largest geomagnetic storm of the past decade. This event caused the inner edge of the ring current to penetrate deeply into the inner magnetosphere during the main phase of the storm.
C.‐W. Jun, Y. Miyoshi, T. Hori, N. Kitamura, K.‐H. Kim, J.‐H. Lee, J. Bortnik, L. Lyons, I. Shinohara, A. Matsuoka, Y. Kasahara, S. Matsuda, Y. Kasaba, M. Teramoto, K. Yamamoto, A. Shinbori   +15 more
wiley   +1 more source

Space climate and space weather over the past 400 years: 1. The power input to the magnetosphere

Journal of Space Weather and Space Climate, 2017
Using information on geomagnetic activity, sunspot numbers and cosmogenic isotopes, supported by historic eclipse images and in conjunction with models, it has been possible to reconstruct annual means of solar wind speed and number density and ...
Lockwood Mike, Owens Mathew J., Barnard Luke A., Scott Chris J., Watt Clare. E.   +4 more
doaj   +1 more source

Nonlinear electric field structures in the inner magnetosphere

, 2014
Van Allen Probes observations are presented which demonstrate the presence of nonlinear electric field structures in the inner terrestrial magnetosphere (
D. Malaspina, L. Andersson, R. Ergun, J. Wygant, J. Bonnell, C. Kletzing, G. Reeves, R. Skoug, B. Larsen   +8 more
semanticscholar   +1 more source

Magnetosphere

Eos, Transactions American Geophysical Union, 1991
Research on the terrestrial magnetosphere, above 500 km, continues to focus on how energy gets from the solar wind into the magnetosphere and how it circulates through the magnetosphere. The prime candidate for energy coupling has long been magnetic merging in which the magnetic field that the solar wind carries from the Sun merges with the geomagnetic
openaire   +2 more sources

Observational Characteristics of Electron Distributions in the Martian Induced Magnetotail

Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract Mars's magnetotail represents a unique case within the solar system, embodying both intrinsic and induced magnetic fields. Yet, the electron dynamics within this region have remained largely unexplored. Utilizing nine years of electron and magnetic field data from the Mars Atmosphere and Volatile EvolutioN mission (MAVEN), we conducted a ...
Chi Zhang, Chuanfei Dong, Hongyang Zhou, Jan Deca, Shaosui Xu, Yuki Harada, Shannon M. Curry, David L. Mitchell, Zhi‐Yang Liu, Junfeng Qin, Christian Mazelle   +10 more
wiley   +1 more source

Multi-station basis for Polar Cap (PC) indices: ensuring credibility and operational reliability

Journal of Space Weather and Space Climate, 2018
The Polar Cap (PC) indices, PCN (North) and PCS (South) are based on polar geomagnetic observations from Qaanaaq (Thule) and Vostok, respectively, processed to measure the transpolar plasma convection that may seriously affect space weather conditions ...
Stauning Peter
doaj   +1 more source

The Pulsating Pulsar Magnetosphere [PDF]

, 2015
Following the basic principles of a charge separated pulsar magnetosphere \citep{goldreich1969}, we consider the magnetosphere be stationary in space, instead of corotating, and the electric field be uploaded from the potential distribution on the pulsar surface, set up by the unipolar induction.
arxiv   +1 more source

Magnetosphere‐ionosphere energy interchange in the electron diffuse aurora

, 2014
The diffuse aurora has recently been shown to be a major contributor of energy flux into the Earth's ionosphere. Therefore, a comprehensive theoretical analysis is required to understand its role in energy redistribution in the coupled ionosphere ...
G. Khazanov, A. Glocer, E. Himwich
semanticscholar   +1 more source