Results 41 to 50 of about 1,340 (198)

Excess of Sodium Ions Density Required to Create a Wide Current at the Hermean Magnetopause

open access: yesUniverse, 2021
In this paper we consider an unusual structure, twice observed at the magnetopause of Mercury, and called the “Double Magnetopause”. Presumably, it is associated with a current sheet created by Na+ ions. Two alternative scenarios are considered.
Elena Belenkaya   +3 more
doaj   +1 more source

Concerning the location of magnetopause merging as a function of the magnetopause current strength [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 1998
We start from an assumption that merging occurs in regions of the magnetopause where current strengths are greater than some threshold value which corresponds to the total jump in the field across the magnetopause greater than 50 nT. Because time and cost constraints preclude running numerical simulations for a wide variety of interplanetary magnetic ...
I. I. Alexeev   +2 more
openaire   +1 more source

Electrodynamic context of magnetopause dynamics observed by magnetospheric multiscale

open access: yesGeophysical Research Letters, 2016
Magnetopause observations by Magnetospheric Multiscale (MMS) and Birkeland currents observed by the Active Magnetosphere and Planetary Electrodynamics Response Experiment are used to relate magnetopause encounters to ionospheric electrodynamics.
Brian J. Anderson   +18 more
doaj   +1 more source

The Microstructure of the Magnetopause [PDF]

open access: yesGeophysical Journal International, 1975
Summary The microstructure of the magnetopause is reviewed with particular emphasis on the identification of important problems that require further study. The subject is introduced by considering theoretically the microstructure of the thin boundary layer (∼ 1 km) that exists when a cold, unmagnetized stream of magnetosheath ions and electrons ...
openaire   +1 more source

LHW in magnetopause

open access: yes, 2023
This is the model output for Turbulence, Particle Acceleration, and Heating due to the Lower Hybrid Mode near Magnetic Reconnection Regions in Magnetopause.
MANOJ K. UPADHYAY, R.UMA, R.P. SHARMA
openaire   +2 more sources

Global hybrid simulations of soft X-ray emissions in the Earth’s magnetosheath

open access: yesEarth and Planetary Physics
Earth’s magnetopause is a thin boundary separating the shocked solar wind plasma from the magnetospheric plasmas, and it is also the boundary of the solar wind energy transport to the magnetosphere.
Jin Guo   +8 more
doaj   +1 more source

Mercury's Alfvén Wing Current System Under Sub‐Alfvénic Solar Wind Conditions: Insights From Global MHD Simulations

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Mercury's proximity to the Sun results in the lowest average Alfvénic Mach number in the upstream solar wind compared to any other planet. Under extreme conditions, the upstream Alfvén speed can exceed the solar wind speed, resulting in a sub‐Alfvénic interaction in which standing Alfvén wings form.
Charles F. Bowers, Xianzhe Jia
wiley   +1 more source

Excitation of field line resonances by sources outside the magnetosphere [PDF]

open access: yesAnnales Geophysicae, 2005
Field line resonances are thought to be excited by sources either at the magnetopause or outside it. Recent observations suggest that they may be associated with coherent oscillations or pressure pulses in the solar wind. In either case the excitation
A. D. M. Walker
doaj   +1 more source

Mercury's Eccentric Orbit as a Driver of Significant “Seasonal” Change in Upstream Solar Wind Forcing

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Mercury experiences the most intense and variable solar wind (SW) conditions in the solar system due to its close, eccentric orbit about the Sun. In addition to variation driven by coronal source and solar cycle, the SW arriving at Mercury varies periodically as the planet's heliocentric distance changes by over 50% per orbit.
Ryan M. Dewey   +17 more
wiley   +1 more source

Magnetopause transects

open access: yesGeophysical Research Letters, 1996
A novel method is described for reconstruction of two‐dimensional current‐layer structures from measurements taken by a single spacecraft traversing the layer. In its present form, the method is applicable only to 2D magneto‐hydrostatic structures that are passively convected past the observing spacecraft. It is tested on a magnetopause crossing of the
B. U. Ö. Sonnerup, M. Guo
openaire   +1 more source

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