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Detailed Reference Information
Sawyer et al. 1995
Sawyer, C.B., King, N.V., Romig, J.H. and Warwick, J.W. (1995). Magnetic-quadrupole source of Neptune “high-latitude” radio emission. Geophysical Research Letters 22: doi: 10.1029/95GL01420. issn: 0094-8276.

We study the occultation of the dominant X-mode component of Neptune's smooth ''high-latitude'' emission. A dipole magnetic model relates the frequency dependence of observed times of maximum emission to radio-source locations. Dipole-based analysis leads to seemingly convincing auroral sources. Yet multipole models of Neptune's complex magnetic field yield quite different results. Steep slopes on each constant-field radio-source surface explain the radio cutoff at the corresponding gyrofrequency. With the observed sense of circular polarization, the modeled radio horizon at occultation locates the radio source at a low-latitude magnetic quadrupole rather than in the expected auroral region. ¿ American Geophysical Union 1995

BACKGROUND DATA FILES

Abstract

Keywords
Radio Science, Radio astronomy, Planetology, Solar System Objects, Neptune, Magnetospheric Physics, Planetary magnetospheres (5443, 5737, 6030), Planetology, Fluid Planets, Magnetospheres
Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/
Publisher
American Geophysical Union
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