Results 11 to 20 of about 15,397 (165)

On the Contribution of Coronal Mass Ejections to the Heliospheric Magnetic Flux Budget on Different Time Scales

open access: yesThe Astrophysical Journal, 2023
Coronal mass ejections (CMEs) contribute closed magnetic flux to the heliosphere while they are connected at both ends to the Sun and play a key role in adding magnetic flux to the heliosphere.
Réka M. Winslow   +4 more
doaj   +1 more source

Eruption and Interplanetary Evolution of a Stealthy Streamer-Blowout CME Observed by PSP at ∼0.5 AU

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Streamer-blowout coronal mass ejections (SBO-CMEs) are the dominant CME population during solar minimum. Although they are typically slow and lack clear low-coronal signatures, they can cause geomagnetic storms.
Sanchita Pal   +7 more
doaj   +1 more source

A User’s Guide to the Magnetically Connected Space Weather System: A Brief Review

open access: yesFrontiers in Astronomy and Space Sciences, 2022
This article provides a concise review of the main physical structures and processes involved in space weather’s interconnected systems, emphasizing the critical roles played by magnetic topology and connectivity. The review covers solar drivers of space
Jason M. H. Beedle   +10 more
doaj   +1 more source

Solar Orbiter SWA Observations of Electron Strahl Properties Inside 1 AU

open access: yesUniverse, 2022
The Solar Wind Analyser (SWA) suite on Solar Orbiter includes an Electron Analyser System (SWA-EAS) which is capable of high temporal and angular resolution measurements of solar wind electrons in the energy range ∼1 eV to ∼5 keV.
Christopher J. Owen   +5 more
doaj   +1 more source

Ulysses Flyby in the Heliosphere: Comparison of the Solar Wind Model with Observational Data

open access: yesUniverse, 2022
A model capable of reproducing a set of solar wind parameters along the virtual spacecraft orbit out of an ecliptic plane has been developed. In the framework of a quasi-stationary axisymmetric self-consistent MHD model the spatial distributions of ...
Evgeniy V. Maiewski   +3 more
doaj   +1 more source

Modulation of Solar Wind Impact on the Earth’s Magnetosphere during the Solar Cycle

open access: yesUniverse, 2022
The understanding of extreme geomagnetic storms is one of the key issues in space weather. Such phenomena have been receiving increasing attention, especially with the aim of forecasting strong geomagnetic storms generated by high-energy solar events ...
Francesco Carbone   +3 more
doaj   +1 more source

Mesoscale Structure in the Solar Wind

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Structures in the solar wind result from two basic mechanisms: structures injected or imposed directly by the Sun, and structures formed through processing en route as the solar wind advects outward and fills the heliosphere. On the largest scales, solar
N. M. Viall, C. E. DeForest, L. Kepko
doaj   +1 more source

The Electron Structure of the Solar Wind

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Time-series measurements of the number density ncore and temperature Tcore of the core-electron population of the solar wind are examined at 1 AU and at 0.13 AU using measurements from the WIND and Parker Solar Probe spacecraft, respectively.
Joseph E. Borovsky   +2 more
doaj   +1 more source

Globally Distributed Energetic Neutral Atom Maps for the "Croissant" Heliosphere [PDF]

open access: yes, 2018
A recent study by Opher et al. (2015) suggested the heliosphere has a "croissant" shape, where the heliosheath plasma is confined by the toroidal solar magnetic field. The "croissant" heliosphere is in contrast to the classically accepted view of a comet-
Drake, James F.   +3 more
core   +1 more source

MANIFESTATIONS OF TWO BRANCHES OF SOLAR ACTIVITY IN THE HELIOSPHERE AND GCR INTENSITY

open access: yesSolar-Terrestrial Physics, 2019
This paper provides insight into heliospheric processes and galactic cosmic ray (GCR) modulation occurring due to the presence of two branches of solar activity in this solar layer.
Krainev M.B.
doaj   +1 more source

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