Journal ArticleDOI
Flow of plasma around the Earth
TLDR
In this article, it is shown that the interplanetary plasma flow measured by means of Explorer 10 is supersonic in the sense that the flow speed is greater than the Alfven speed.Abstract:
The interplanetary plasma flow measured by means of Explorer 10 is supersonic in the sense that the flow speed is greater than the Alfven speed. It is shown that this has some of the same implications as supersonic flow does in ordinary fluid flow theory, and possible consequences are discussed. The position of the shock that would develop if the interplanetary plasma were a perfect gas with a short mean free path is calculated and is shown to be well outside the orbit of Explorer 10, so that it would not have been seen. Speculations on the possible structure of the shock in collisionless plasma are given, and it is shown that this structure may account for the turbulent character of the distant magnetic field. (auth)read more
Citations
More filters
Journal ArticleDOI
Hydromagnetic flow around the magnetosphere
TL;DR: MHD equations applied to hypersonic flow of solar plasma around magnetosphere and approximation with simpler equations of gas dynamics were used to simulate the solar plasma in the magnetosphere.
Journal ArticleDOI
The Earth's magnetic tail
TL;DR: In this article, the topology of the magnetic field within the magnetosphere and the position of both its boundary and the detached collisionless bow shock wave were investigated. But the results were limited to the Imp 1 satellite, and the range of the magnetometers was between 0.25 and 300γ.
Journal ArticleDOI
The solar wind velocity and its correlation with cosmic-ray variations and with solar and geomagnetic activity
TL;DR: Mariner 2 obtained data on the interplanetary plasma during the period August 29, 1962, through January 3, 1963, and compared with data on cosmic-ray diurnal variations and with indices of solar and geomagnetic activity for this period as discussed by the authors.
Journal ArticleDOI
Initial results of the imp 1 magnetic field experiment
TL;DR: In this paper, the initial results of the detailed measurements of the interplanetary magnetic field and the interaction of the solar wind with the geomagnetic field are presented, with extreme values as low as 1 and as high as 10 γ.
Journal ArticleDOI
Aerodynamic aspects of the magnetospheric flow
TL;DR: In this article, it was shown that more than 10% of the magnetic field lines brought to the surface of the magnetosphere by the solar wind get broken and reconnected to the earth's polar field lines.
References
More filters
Journal ArticleDOI
The interaction of the terrestrial magnetic field with the solar corpuscular radiation
TL;DR: In this article, the terrestrial magnetic dipole field is assumed to exist in an intense stream of protons and electrons emanating from the sun, which behaves as a diamagnetic medium terminating the earth's magnetic field at about 7 earth radii on the daylit side and up to perhaps 100 earth radius on the night side of the earth.
Journal ArticleDOI
The structure of strong collision-free hydromagnetic waves
J. H. Adlam,J. E. Allen +1 more
TL;DR: In this article, a theoretical study of the structure of strong hydromagnetic waves which are propagated, across a magnetic field, in a low density plasma where collisions can be neglected is made.
Journal ArticleDOI
Large‐Amplitude Magnetic Compression of a Collision‐Free Plasma. II. Development of a Thermalized Plasma
P. L. Auer,H. Hurwitz,R. W. Kilb +2 more
TL;DR: In this paper, a model of a strong one-dimensional disturbance traveling perpendicular to a magnetic field in a fully ionized and collisionless plasma is presented, and a relationship between the longitudinal electrostatic potential difference across the shock front and mass flow in the plane of the front is derived on the basis of a simplified model and found to be in qualitative agreement with the numerical results.