NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Double layers and circuits in astrophysicsAs the rate of energy release in a double layer with voltage delta V is P approx I delta V, a double layer must be treated as a part of a circuit which delivers the current I. As neither double layer nor circuit can be derived from magnetofluid models of a plasma, such models are useless for treating energy transfer by means of double layers. They must be replaced by particle models and circuit theory. A simple circuit is suggested which is applied to the energizing of auroral particles, to solar flares, and to intergalactic double radio sources. Application to the heliospheric current systems leads to the prediction of two double layers on the Sun's axis which may give radiations detectable from Earth. Double layers in space should be classified as a new type of celestial object (one example is the double radio sources). It is tentatively suggested in X-ray and Gamma-ray bursts may be due to exploding double layers (although annihilation is an alternative energy source). A study of how a number of the most used textbooks in astrophysics treat important concepts like double layers, critical velocity, pinch effects and circuits is made.
Document ID
19870010655
Document Type
Conference Paper
Authors
Alfven, Hannes (Royal Inst. of Tech. Stockholm, Sweden)
Date Acquired
September 5, 2013
Publication Date
October 1, 1986
Publication Information
Publication: JPL, Space Technology Plasma Issues in 2001
Subject Category
ELECTRONICS AND ELECTRICAL ENGINEERING
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

NameType 19870010655.pdf STI