A beaming model of the Io-independent Jovian decameter radiation based on multipole models of the Jovian magnetic field | Zendy

M. L. Goldstein | Zendy; A. Eviatar | Zendy; J. R. Thieman | Zendy

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A beaming model of the Io-independent Jovian decameter radiation based on multipole models of the Jovian magnetic field

Author(s) -

M. L. Goldstein,

A. Eviatar,

J. R. Thieman

Publication year - 1979

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/157053

Subject(s) - jovian , physics , magnetosphere , jupiter (rocket family) , van allen radiation belt , astronomy , solar wind , magnetic field , computational physics , astrophysics , planet , spacecraft , saturn , quantum mechanics

A geometrical model is presented in which the apparent source locations of the Io-independent decameter radiation are computed. The calculations assume that the radiation is produced by stably trapped electrons radiating near the electron gyrofrequency and that the emission is then beamed onto a conical surface. The maximum occurrence probability of noise storms is associated with regions in the Jovian magnetosphere where the axis of the emission cone is most inclined toward the Jovian equatorial plane. The calculations utilize and compare two of the octupole spherical harmonic expansions of the Jovian magnetic field constructed from data accumulated by the fluxgate and vector helium magnetometers on board Pioneer 11.

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