Results 91 to 100 of about 1,013,936 (266)

Soft X‐Ray Emission From Saturn's Magnetosheath Part I: 3D Modeling From MHD Data

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract Saturn's magnetosheath hosts a mixed population of water‐group neutrals and solar wind plasma. We present a 3‐D model of soft X‐ray emission by ion‐neutral charge exchange in the near‐equatorial magnetosheath. The model employs MHD simulation data of plasma properties at Saturn, Enceladus‐genic neutral populations extrapolated from existing ...
P. C. Rogan, L. C. Ray, D. Naylor, W. R. Dunn, X. Jia, H. T. Smith, A. Sulaiman   +6 more
wiley   +1 more source

The Contribution of the Russell‐McPherron Effect to the Semiannual Variation in Thermospheric Density

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract A number of external sources and internal circulation mechanisms have been proposed to explain the well‐known semiannual variation in global mean thermospheric densities. We use the polarity of the Y $Y$‐component (dawn to dusk) of the Interplanetary Magnetic Field (IMF) in the Geocentric Solar Equatorial (GSEQ) frame to identify the influence,
Mike Lockwood, Chris J. Scott, James O’Donoghue, Mat J. Owens, Luke A. Barnard   +4 more
wiley   +1 more source

On the Disappearance of Kilohertz Quasi-Periodic Oscillations at a High Mass Accretion Rate in Low-Mass X-ray Binaries

, 2000
For all sources in which the phenomenon of kilo-Hertz quasi-periodic oscillation (kHz QPO) is observed, the QPOs disappear abruptly when the inferred mass accretion rate exceeds a certain threshold.
Meyer F., Wei Cui
core   +2 more sources

“Caterpillar” ULF Waves in the Dusk Side Sub‐Auroral Region: Conjugate Observations With SuperDARN, Arase and Ground Magnetometers

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract On 23 November 2022, during exceptionally quiet geomagnetic conditions, a distinct ultra‐low frequency (ULF) wave in the Pc5 band (∼2.4 mHz) was observed in the duskside sub‐auroral region by two Canadian SuperDARN (Super Dual Auroral Radar Network) radars.
N. Nishitani, K. Hosokawa, T. Hori, M. Teramoto, P. V. Ponomarenko, A. Shinbori, Y. Obana, A. S. Yukimatu, G. Hussey, Y. Miyoshi, A. Matsuoka, A. Kumamoto, F. Tsuchiya, S. Matsuda, Y. Kasahara, S. Nakamura, I. Shinohara, Y. Zhang, L. Paxton   +18 more
wiley   +1 more source

Global Energy Circulation During a Solar Wind Density Pulse

Space Weather
We study the propagation and impacts of a strong density pulse through the magnetosphere during 11:40–12:00 UT near the peak of a geomagnetic storm on 3 February 2022. Using the Space Weather Modeling Framework Geospace global simulation, we show how the
Tuija Pulkkinen, Matti Ala‐Lahti, Austin Brenner, Gábor Tóth, Daniel Welling, Timothy Keebler   +5 more
doaj   +1 more source

Simulation study of near-Earth space disturbances: 1. magnetic storms

Progress in Earth and Planetary Science, 2019
A magnetic storm is the world-wide geomagnetic disturbance taking place in near-Earth space environment, lasting for a few days. Geomagnetic fields can be depressed by ~ 1% on the ground for large magnetic storms.
Yusuke Ebihara
doaj   +1 more source

The inner magnetosphere imager mission [PDF]

, 1994
The Inner Magnetosphere Imager (IMI) mission will carry instruments to globally image energetic neutral atoms, far and extreme ultraviolet light, and X-rays. These imagers will see the ring current, inner plasmasheet, plasmasphere, aurora, and geocorona. With these observations it will be possible, for the first time, to develop an understanding of the
openaire   +1 more source

Ion acceleration at dipolarization fronts in the inner magnetosphere

, 2017
During geomagnetic storms plasma pressure in the inner magnetosphere is controlled by energetic ions of tens to hundreds of keV. Plasma pressure is the source of global storm time currents, which control the distribution of magnetic field and couple the ...
A. Ukhorskiy, M. Sitnov, V. Merkin, M. Gkioulidou, D. Mitchell   +4 more
semanticscholar   +1 more source

Effect of Field Line Torsion on the Polarization of ULF Waves

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract In this paper we suggest a simple modification of the dipole magnetic field which introduces field‐aligned currents and torsion to the field lines. The resulting field lines are not contained in the meridional planes and have resemblance to the geomagnetic field lines in the dawn and dusk flanks of the magnetosphere. We analyze polarization of
K. Kabin, A. W. Degeling, R. Rankin
wiley   +1 more source

The Deutsch Field Gamma-Ray Pulsar - Paper I: The Model Basics

, 1996
A new model for the high-energy emission from pulsars is developed by considering charged particle motion in the fields of a spinning, highly magnetised and conducting sphere in vacuum.
Henriksen, R. N., Higgins, M. G.
core   +2 more sources