Abstract
view Abstract Citations (16) References (11) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A Dynamic Equation for Stochastic Magnetic Field Lines in the Galaxy Jones, Frank C. Abstract It has been pointed out by previous authors that the turbulent motion of the ionized interstellar gas will cause a given line of force of the galactic magnetic field to wander in a random manner even though the average field may be quite regular. We derive here an equation that describes the development of the probability density of a given field line as a function of distance along the average field. We explain why a Fokker-Planck type of equation is quite unsuitable in this case and show that the answer must be sought in the theory of stationary Gaussian processes. We also derive the distribution function for the "endpoints" of a field line that starts on the galactic central plane. Endpoint in this context means the point where the field line first wanders so near the surface of the galactic disk that it can no longer confine cosmic rays. Publication: The Astrophysical Journal Pub Date: November 1971 DOI: 10.1086/151163 Bibcode: 1971ApJ...169..477J full text sources ADS | Related Materials (1) Erratum: 1972ApJ...172..525J
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