Beaming of Uranian kilometric radiation and implications for the planetary magnetic field

Details Beaming of Uranian kilometric radiation and implications for the planetary magnetic field Beaming of Uranian kilometric radiation and implications for the planetary magnetic field

Apr 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...315l.151b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 315, April 15, 1987, p. L151-L154.

Astronomy and Astrophysics

Astronomy

4

Auroral Irradiation, Kilometric Waves, Magnetic Properties, Planetary Magnetic Fields, Radio Waves, Uranus (Planet), Magnetic Dipoles, Planetary Rotation, Radio Bursts, Voyager 2 Spacecraft, Uranus, Kilometer Waves, Radiation, Beaming, Magnetic Fields, Latitude, Radio Waves, Emissions, Voyager 2, Spacecraft Observations, Analysis, Models, Source, Magnetic Poles, Dipole, Magnetic Moments, Interiors, Magnetosphere, Planetary Radio Astronomy Instrument, Frequencies, Pra

Scientific paper

Radio waves from Uranus at 481.2 kHz detected by Voyager 2 show a strong beaming effect. When the data are analyzed according to the magnetic latitude of the observer in an offset tilted dipole field model, a sharply defined emission beam extending from 25 to 55 deg latitude is evident consistent with a source over the south magnetic pole. The lack of prominent emission from the north magnetic pole can be attributed to the large spatial offset of the magnetic dipole resulting in much lower source frequencies. For proper alignment of the beam, an advance of the dipole axis longitude by 23 deg from the standard model is required. This phase shift is interpreted as the result of higher order magnetic moments producing a skew of the field lines at low altitudes in the polar source region. This conclusion further substantiates models of the interior of Uranus which predict a complex intrinsic field with significant nondipolar contributions to the surface magnetic field.

Affiliated with

Also associated with

No associations

Rating

Beaming of Uranian kilometric radiation and implications for the planetary magnetic field does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Beaming of Uranian kilometric radiation and implications for the planetary magnetic field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Beaming of Uranian kilometric radiation and implications for the planetary magnetic field will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1347711