Results 81 to 90 of about 1,308 (218)

Surface Waves at Switchback Boundaries in the Young Solar Wind from Parker Solar Probe Observations

The Astrophysical Journal
Switchbacks (SBs) are localized magnetic field deflections in the solar wind, marked by abrupt changes in the magnetic field direction relative to the ambient solar wind.
Kyung-Eun Choi, Oleksiy V. Agapitov, Nina Bizien, Thierry Dudok de Wit, Lucas Colomban   +4 more
doaj   +1 more source

Near‐Earth Solar Wind Speed of Fast Coronal Mass Ejections

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract Using solar wind and ground magnetometer data for solar cycles 23–25, extreme‐value power‐law models are developed that quantify relationships between near‐Earth solar wind speed and Sun‐to‐Earth transit times of interplanetary coronal mass ejections (ICMEs).
Jeffrey J. Love, Ian G. Richardson, E. Joshua Rigler, Kalevi Mursula   +3 more
wiley   +1 more source

Directional discontinuities in the interplanetary magnetic field [PDF]

Solar Physics, 1969
It is shown that the interplanetary magnetic field has different characteristics on different scales, and it is noted that a given physical theory may not be applicable or relevant on all scales. Four scales are defined in terms of time intervals on which the data may be viewed.
openaire   +1 more source

Proton Temperature and Density Variations in Linear Magnetic Holes in the Solar Wind

The Astrophysical Journal
Linear magnetic holes (LMHs) are pressure-balanced structures characterized by reduced magnetic pressure and compensatory thermal pressure enhancements, driven by proton temperature and/or density variations.
RuiHui Yu, Xin Wang, Hua Zhang, Yu Zhang
doaj   +1 more source

Statistical Survey of Cosmic Noise Absorption in Conjunction With Plasma Wave Measurements

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract Using a decade of observations from the Canadian Geospace Observatory Riometer Network (GO‐RIO), we selected an east‐west subset of stations near L∼7 $L\sim 7$ to classify cosmic noise absorption (CNA) (a proxy for enhanced D‐region ionization) into two morphologies, simultaneous and drifting, based on the relative timing of signals across the
R. Ghaffari, C. M. Cully, E. Spanswick, R. A. D. Fiori   +3 more
wiley   +1 more source

The spiral structure of the interplanetary magnetic field

Geophysical Research Letters, 1976
We examine the Pioneer 10 data concerning the heliocentric radial variation of the interplanetary magnetic field. Incorporating the systematic increase in solar wind velocity observed during the mission leads to much improved agreement between the usual Parker Archimedean spiral and the data.
G. D. Parker, J. R. Jokipii
openaire   +1 more source

State studies of the large-scale electric fields in the low-latitude region of Earth's inner magnetosphere

地球与行星物理论评
The large-scale electric fields in Earth's inner magnetosphere are generated by the interaction between the solar wind and Earth's magnetic field.
Zhao Zhang, Dianjun Zhang, Wenlong Liu
doaj   +1 more source

Investigating the Leptokurtotic Nature of Low‐Latitude GNSS Scintillations With a Multiscale Approach

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract We investigate the statistical nature of Global Navigation Satellite System (GNSS) signal fluctuations through the multiscale analysis of a strong scintillation event recorded at the Ionospheric Observatory of the Luigi Broglio Space Center in Malindi, Kenya.
L. Spogli, K. Meziane, P. T. Jayachandran, E. Pica, A. Cicone, L. Alfonsi   +5 more
wiley   +1 more source

Unified theory of the interplanetary magnetic field [PDF]

Solar Physics, 1970
A simple model is used to present a unified picture of the polarity pattern of the interplanetary magnetic field observed during the solar cycle. Emphasis in this paper is on the field near solar maximum. The heliographic latitude dependence of the dominant polarity of the interplanetary magnetic field is explained in terms of weak poloidal (dipolar ...
openaire   +1 more source

Switchbacks near Boundaries of Small-scale Magnetic Flux Ropes in the Young Solar Wind from Parker Solar Probe Observations

The Astrophysical Journal
The Parker Solar Probe (PSP) mission has revealed frequent occurrences of switchbacks (SBs) and small-scale magnetic flux ropes (SMFRs) as prominent structures within the solar wind. These mesoscale features are observed across all heliocentric distances,
Kyung-Eun Choi, Oleksiy V. Agapitov, Dae-Young Lee, Forrest Mozer, Jia Huang, Lucas Colomban, Jaye L. Verniero, Nour Raouafi   +7 more
doaj   +1 more source