Results 11 to 20 of about 1,308 (218)

The Interplanetary Magnetic Field [PDF]

open access: yesJournal of Geophysical Research, 1990
In 1974 a number of observations of the magnetic field at about 1 AU were already available and the concept of coronal magnetic field expansion in the heliosphere well established. On the other hand, only a few, sporadic, in situ field observations were available at heliocentric distances significantly inside the terrestrial orbit.
Franco Mariani, Fritz M. Neubauer
  +6 more sources

Active Regions and the Interplanetary Magnetic Field [PDF]

open access: yesSymposium - International Astronomical Union, 1968
The relation of solar active regions to the large-scale sector structure of the interplanetary field is discussed. In the winter of 1963–64 (observed by the satellite IMP-1) the plage density was greatest in the leading portion of the sectors and lesser in the trailing portion of the sectors. The boundaries of the sectors (places at which the direction
John M. Wilcox   +2 more
openaire   +1 more source

PUZZLES OF THE INTERPLANETARY MAGNETIC FIELD IN THE INNER HELIOSPHERE [PDF]

open access: yesThe Astrophysical Journal, 2012
10 pages, 8 figures, 2 tables, Preprint IZMIRAN, Published in the Astrophysical Journal ...
Khabarova, Olga, Obridko, Vladimir
openaire   +2 more sources

Perturbazioni geomagnetiche, aurorali, ionosferiche e dei raggi cosmici : interdipendenze e relazioni con l'attività solare

open access: yesAnnals of Geophysics, 1966
Existence of interplanetary magnetic fields other than<br />the geomagnetic field is now well established. They travel as frozen-in<br />fields inside the solar plasma clouds: magnetic fields on the Sun are then<br />discussed ...
F. Molina, F. Mariani
doaj   +1 more source

The physics of space weather/solar-terrestrial physics (STP): what we know now and what the current and future challenges are [PDF]

open access: yesNonlinear Processes in Geophysics, 2020
Major geomagnetic storms are caused by unusually intense solar wind southward magnetic fields that impinge upon the Earth's magnetosphere (Dungey, 1961). How can we predict the occurrence of future interplanetary events?
B. T. Tsurutani   +3 more
doaj   +1 more source

32. Interplanetary magnetic field [PDF]

open access: yesSymposium - International Astronomical Union, 1958
The magnetic field outside the sun (interplanetary magnetic field) is certainly far from a dipole field. A model of it has recently been suggested (Tellus,8, 1, 1956). This model is in agreement with cosmic ray and magnetic storm data and reconcilable with the coronal ray structure. Some possibilities to check the model are discussed.
openaire   +1 more source

EULERIAN DECORRELATION OF FLUCTUATIONS IN THE INTERPLANETARY MAGNETIC FIELD [PDF]

open access: yesThe Astrophysical Journal, 2010
A method is devised for estimating the two-time correlation function and the associated Eulerian decorrelation timescale in turbulence. With the assumptions of a single decorrelation time and a frozen-in flow approximation for the single-point analysis, the method compares two-point correlation measurements with single-point correlation measurements at
Matthaeus, W.H.   +4 more
openaire   +4 more sources

Extension of the Photospheric Magnetic Field Into Interplanetary Space [PDF]

open access: yesThe Astrophysical Journal, 1965
Comparison of interplanetary magnetic field measurements made by Imp-I satellite and those obtained with solar magnetograph at Mount ...
John M. Wilcox, Norman F. Ness
openaire   +1 more source

The Structure and Origin of Switchbacks: Parker Solar Probe Observations

open access: yesThe Astrophysical Journal, 2023
Switchbacks are rapid magnetic field reversals that last from seconds to hours. Current Parker Solar Probe (PSP) observations pose many open questions in regard to the nature of switchbacks.
Jia Huang   +27 more
doaj   +1 more source

Comparison of the mean photospheric magnetic field and the interplanetary magnetic field [PDF]

open access: yesSolar Physics, 1970
Photospheric and interplanetary magnetic field polarity and magnitude comparison, using Explorer ...
A. Severny   +3 more
openaire   +1 more source

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