Results 31 to 40 of about 27,056 (231)

Are the Heliosphere, Very Local Interstellar Medium, and Local Cavity in Pressure Balance with Galactic Gravity?

open access: yesThe Astrophysical Journal, 2023
The Voyager spacecraft are providing the first in situ measurements of physical properties in the outer heliosphere beyond the heliopause. These data, together with data from the IBEX and Hubble Space Telescope and physical models consistent with these ...
Jeffrey L. Linsky, Eberhard Moebius
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

Whence the Interstellar Magnetic Field Shaping the Heliosphere?

open access: yesAstrophysical Journal Supplement Series, 2022
Measurements of starlight polarized by aligned interstellar dust grains are used to probe the relation between the orientation of the ambient interstellar magnetic field (ISMF) and the ISMF traced by the ribbons of energetic neutral atoms discovered by ...
P. Frisch   +17 more
semanticscholar   +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

Exclusion of Tiny Interstellar Dust Grains from the Heliosphere [PDF]

open access: yes, 2009
The distribution of interstellar dust grains (ISDG) observed in the Solar System depends on the nature of the interstellar medium-solar wind interaction.
Avinash, K.   +8 more
core   +2 more sources

A Three-dimensional Map of the Heliosphere from IBEX

open access: yesAstrophysical Journal Supplement Series, 2021
The Interstellar Boundary Explorer (IBEX) mission has shown that variations in the energetic neutral atom (ENA) flux from the outer heliosphere are associated with the solar cycle and longer-term variations in the solar wind (SW). In particular, there is
D. Reisenfeld   +10 more
semanticscholar   +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

The Evolution and Role of Solar Wind Turbulence in the Inner Heliosphere [PDF]

open access: yesAstrophysical Journal Supplement Series, 2019
The first two orbits of the Parker Solar Probe spacecraft have enabled the first in situ measurements of the solar wind down to a heliocentric distance of 0.17 au (or 36 ).
C. Chen   +24 more
semanticscholar   +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

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