Title :
The van allen hypothesis - the origin of the magnetic field of the planets and stars (revised)
Author_Institution :
Tennessee Univ., Knoxville, TN
Abstract :
Summary form only given. The magnetic moment of planets, stars and pulsars are proportional to their angular momentum over twelve orders of magnitude. This was empirically derived by Van Allen. The theory put forward in this paper reproduces the relationship. This model assumes that the magnetic field is produced due to the rotation of the celestial body in a nonrotating plasma cloud that surrounds it. The plasma cloud is constituted by a Faraday electrical generator, which acts as the primary source of the magnetic field. The exceptions to the curve plotted in the graph are planets lying substantially below it. This is explained by the theory giving only the limiting value. Transient behavior giving zero or changing magnetic fields is not yet included. A limiting value to the magnetic field is found by using "Bohm conductivity" across the magnetic field. The assumption in this theory is in contrast to the previous assumption that the source of the magnetic field was the flow of magma in the celestial body itself. The paper puts forward a simple mathematical model, which matches the experimental results with no adjustable parameters
Keywords :
astrophysical fluid dynamics; astrophysical magnetic fields; astrophysical plasma; celestial mechanics; planetary magnetism; pulsars; Bohm conductivity; Faraday electrical generator; Van Allen hypothesis; angular momentum; celestial body rotation; magma flow; magnetic moment; nonrotating plasma cloud; planets; pulsars; stars; Clouds; Generators; Heating; Magnetic fields; Magnetic moments; Magnetosphere; Mathematical model; Nuclear and plasma sciences; Planets; Plasma sources;
Conference_Titel :
Plasma Science, 2006. ICOPS 2006. IEEE Conference Record - Abstracts. The 33rd IEEE International Conference on
Conference_Location :
Traverse City, MI
Print_ISBN :
1-4244-0125-9
DOI :
10.1109/PLASMA.2006.1707329