Results 51 to 60 of about 21,104 (196)

Evolution of the interplanetary magnetic field [PDF]

open access: yes, 1994
Remote observations of magnetic field topologies in the solar corona and in situ observations of the solar wind and interplanetary magnetic field (IMF) in interplanetary space are used to examine the temporal evolution of the spatial distribution of open and closed field regions emanating from the Sun.
openaire   +1 more source

A Helicity-Based Method to Infer the CME Magnetic Field Magnitude in Sun and Geospace: Generalization and Extension to Sun-Like and M-Dwarf Stars and Implications for Exoplanet Habitability

open access: yes, 2017
Patsourakos et al. (Astrophys. J. 817, 14, 2016) and Patsourakos and Georgoulis (Astron. Astrophys. 595, A121, 2016) introduced a method to infer the axial magnetic field in flux-rope coronal mass ejections (CMEs) in the solar corona and farther away in ...
A. Isavnin   +119 more
core   +1 more source

A Complete Theory for Nondiffusive Field Line Random Walk in Magnetic Turbulence

open access: yesThe Astrophysical Journal
Previous 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

On the heliolatitudinal variation of the galactic cosmic-ray intensity. Comparison with Ulysses measurements [PDF]

open access: yesAnnales Geophysicae, 2003
We study the dependence of cosmic rays with heliolatitude using a simple method and compare the results with the actual data from Ulysses and IMP spacecraft.
G. Exarhos, G. Exarhos, X. Moussas
doaj   +1 more source

Multiwavelength Study on Solar and Interplanetary Origins of the Strongest Geomagnetic Storm of Solar Cycle 23

open access: yes, 2011
We study the solar sources of an intense geomagnetic storm of solar cycle 23 that occurred on 20 November 2003, based on ground- and space-based multiwavelength observations.
B. Schmieder   +34 more
core   +1 more source

Spectral Anisotropy at Ion Scales in the Solar Wind Upstream of the Martian Bow Shock

open access: yesThe Astrophysical Journal
The 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

On the flow of a magnetized solar wind around the moon [PDF]

open access: yes
Effects of interplanetary magnetic fields on flow of plasma around ...
Jokipii, J. R.
core   +1 more source

Solar cycle variations in the interplanetary magnetic field [PDF]

open access: yes, 1983
ISEE 3 interplanetary magnetic field measurements have been used to extend the NSSDC hourly averaged IMF composite data set through mid-1982. Most of sunspot cycle 20 (start:1964) and the first half of cycle 21 (start:1976) are now covered.
Slavin, J. A., Smith, E. J.
core   +1 more source

Connecting speeds, directions and arrival times of 22 coronal mass ejections from the Sun to 1 AU

open access: yes, 2014
Forecasting the in situ properties of coronal mass ejections (CMEs) from remote images is expected to strongly enhance predictions of space weather, and is of general interest for studying the interaction of CMEs with planetary environments. We study the
Amla, K.   +17 more
core   +1 more source

Axial Flux Evolution of Small-scale Magnetic Flux Ropes from 0.06 to 10 au

open access: yesThe Astrophysical Journal Letters
Small-scale magnetic flux ropes (SMFRs) fill much of the solar wind, but their origin and evolution are debated. We apply our recently developed, improved Grad–Shafranov algorithm for the detection and reconstruction of SMFRs to data from Parker Solar ...
Hameedullah Farooki   +4 more
doaj   +1 more source

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