Magnetic Fields at Neptune

  title={Magnetic Fields at Neptune},
  author={Norman F. Ness and Mario H. Acu�a and L. F. Burlaga and John E. P. Connerney and Ronald P. Lepping and Fritz M. Neubauer},
  pages={1473 - 1478}
The National Aeronautics and Space Administration Goddard Space Flight Center-University of Delaware Bartol Research Institute magnetic field experiment on the Voyager 2 spacecraft discovered a strong and complex intrinsic magnetic field of Neptune and an associated magnetosphere and magnetic tail. The detached bow shock wave in the supersonic solar wind flow was detected upstream at 34.9 Neptune radii (RN), and the magnetopause boundary was tentatively identified at 26.5 RN near the planet-sun… 
Neptune's polar cusp region: Observations and magnetic field analysis
Upon entering Neptune's magnetosphere, Voyager 2 penetrated its distant polar cusp on August 24, 1989. At that time the planet's magnetic dipole axis was approximately parallel to the Sun-planet
The effect of magnetic topography on high-latitude radio emission at Neptune
Occultation by a local elevation on the surface of constant magnetic field is proposed as a new interpretation for the unusual properties of Neptune high-latitude emission. Abrupt changes in
Field-independent source localization of Neptune's radio bursts
During the Voyager 2 encounter with Neptune, a narrowbanded bursty radio component was observed between 500 and 1326 kHz by the Planetary Radio Astronomy (PRA) instrument. Based on the emission
The Encounter of Voyager 2 with Neptune’s Magnetosphere
The particles and fields complement of instruments on the Voyager 2 spacecraft performed a comprehensive set of measurements during the encounter with the Neptune system on August 24 through 28,
Magnetic fields of the outer planets
It is difficult to imagine a group of planetary dynamos more diverse than those visited by the Pioneer and Voyager spacecraft. The magnetic field of Jupiter is large in magnitude and has a dipole
First Plasma Wave Observations at Neptune
The Voyager 2 plasma wave instrument detected many familiar plasma waves during the encounter with Neptune, including electron plasma oscillations in the solar wind upstream of the bow shock,
Evidence for a diurnally rocking plasma mantle at Neptune
Voyager's post-encounter trajectory at Neptune allows the directions of the magnetic field in the magnetosheath produced by the draping of the typical interplanetary field and by alignment with the
ULF turbulence in the Neptunian polar cusp
One of the most fortuitous events occurring during the Voyager 2 Neptune encounter was the passage of the spacecraft through the southern magnetic cusp region prior to entry into the magnetosphere.
Tether capture of spacecraft at Neptune


Magnetic Fields at Uranus
The magnetic field experiment on the Voyager 2 spacecraft revealed a strong planetary magnetic field of Uranus and an associated magnetosphere and fully developed bipolar masnetic tail. The detached
Magnetic Field Studies at Jupiter by Voyager 2: Preliminary Results
Results and the magnetic field geometry confirm the earlier conclusion from Voyager I studies that Jupiter has an enormous magnetic tail, approximately 300 to 400 RJ in diameter, trailing behind the planet with respect to the supersonic flow of the solar wind.
Magnetic Field Studies by Voyager 2: Preliminary Results at Saturn
V Voyager 2 crossed the magnetopause of a relatively compressed Saturnian magnetosphere at 18.5 RS while inbound near the noon meridian and throughout the outbound magnetosphere passage, the field was relatively steady and smooth showing no evidence for any azimuthal asymmetry or magnetic anomaly in the planetary field.
IMP 5 magnetic field measurements in the high latitude outer magnetosphere near the noon meridian
Imp 5 magnetic-field measurements at geomagnetic latitudes up to 75° and at distances beyond 6 RE reveal the permanent existence of a broad depressed field region centered on the polar or dayside
The induced magnetosphere of Titan
The Voyager 1 spacecraft had a close encounter (miss distance = 6970 km) with Titan (diameter = 5140 km) on November 12, 1980, while this large satellite was located within the Saturnian
A quiescent magnetosphere for Neptune
If Neptune has a large magnetic moment, a weak supply of plasma for its magnetosphere, and a magnetic moment that is in near alignment with the planetary spin axis, we argue that, except for a region
Standing Alfvén wave current system at Io: Voyager 1 observations
The enigmatic control of the occurrence frequency of Jupiter's decametric emissions by the satellite Io has been explained theoretically on the basis of its strong electrodynamic interaction with the
Plasma Observations Near Neptune: Initial Results from Voyager 2
The plasma science experiment on Voyager 2 made observations of the plasma environment in Neptune's magnetosphere and in the surrounding solar wind, finding the maximum plasma density observed in the magnetosphere is inferred to be 1.4 per cubic centimeter, the smallest observed by Voyager in any magnetosphere.
The magnetosphere of Uranus - Plasma sources, convection, and field configuration
At the time of the Voyager 2 flyby of Uranus, the planetary rotational axis will be roughly antiparallel to the solar wind flow. If Uranus has a magnetic dipole moment that is approximately aligned
Magnetic field and current structures in the magnetosphere of Uranus
We compare Voyager 2 magnetic field and plasma data with theoretical model calculations for the magnetosphere of Uranus in order to derive a global picture from the quite limited set of measurements.