Results 91 to 100 of about 2,583 (231)
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract Using Van Allen Probes data (2013–2015), we report that highly oblique chorus waves frequently occur in low‐density regions where fpe/fce≈3 ${f}_{\text{pe}}/{f}_{\text{ce}}\approx 3$. These waves exhibit an electric‐to‐magnetic energy ratio PE/c2PB>0.5 $\sqrt{{P}_{\mathrm{E}}/{c}^{2}{P}_{\mathrm{B}}} > 0.5$, much higher than the typical <0.1 ${
Lixian Yang +10 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract The large‐scale traveling ionospheric disturbances (LSTIDs) over the Asian‐Pacific sector during the 10–11 May 2024 superstorm are investigated using ionosonde observation and simulation from a whole geospace model—Multiscale Atmosphere Geospace Environment (MAGE), which fully couples multiple magnetosphere, ionosphere and thermosphere models.
Tianyang Hu +6 more
wiley +1 more source
The appearance, motion, and disappearance of three-dimensional magnetic null points
, 2015 N.A.M. acknowledges support from NASA grants NNX11AB61G, NNX12AB25G, and NNX15AF43G; NASA contract NNM07AB07C; and NSF SHINE grants AGS-1156076 and AGS-1358342 to SAO. C.E.P.
Parnell, Clare Elizabeth +5 more
core +1 more source
Turbulence in the interstellar medium [PDF]
, 2014 Turbulence is ubiquitous in the insterstellar medium and plays a major role in several processes such as the formation of dense structures and stars, the stability of molecular clouds, the amplification of magnetic fields, and the re-acceleration and ...
Chian, A. C. -L. +9 more
core +1 more source
A Complete Theory for Nondiffusive Field Line Random Walk in Magnetic Turbulence
The Astrophysical JournalPrevious analytical and numerical investigations of the stochastic properties of field lines in magnetic turbulence have been based on determining the running field-line diffusion coefficient.
A. Shalchi
doaj +1 more source
Geophysical 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
On the topology of global coronal magnetic fields
, 2014 This thesis considers the magnetic topology of the global solar corona. To understand the magnetic topology we use the magnetic skeleton which provides us with a robust description of the magnetic field.
Edwards, Sarah J.
core
Spectral Anisotropy at Ion Scales in the Solar Wind Upstream of the Martian Bow Shock
The Astrophysical JournalThe spectral anisotropy of magnetic field fluctuations at ion scales in the solar wind upstream of the Martian bow shock remains poorly understood. In the solar wind near the Earth’s orbit, such anisotropy is known to be modulated by ion-scale waves ...
Hua Zhang +3 more
doaj +1 more source
The prediction of coronal and interplanetary magnetic fields [PDF]
Observation and Prediction of Solar Activity Conference, 1970 Solar coronal structure and interplanetary magnetic fields prediction based on magnetic models, testing accuracy at solar ...
openaire +1 more source
Geophysical 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