Field line distortion and Joule heating by the corotation enforcement current in the Jovian magneto-ionosphere

Journal Article · Fri Oct 01 04:00:00 EDT 1982 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JA087iA10p08111· OSTI ID:6574209

Watanabe, Y; Nishida, A

When radial flow is generated in the rapidly rotating magnetosphere of Jupiter, angular velocity of the magnetospheric plasma departs from the corotational value on account of the conservation of the angular momentum. This causes twisting of magnetic field lines in the magnetosphere and Joule heating in the ionosphere. We have estimated the energy storage and dissipation rates by using a model in which finite transit time of the signals between the equatorial plasma disc and the ionosphere as well as the reflection of the signal at the ionosphere are taken into account. In the case of the inward flow produced by the magnetospheric compression the energy stored in the magnetic field and dissipated in the ionosphere while the compression is in progress both amount to 10/sup 17approximately18/J.

• Research Organization: The Institute of Space and Astronautical Science, Komaba, Meguro, Tokyo 153, Japan
• OSTI ID: 6574209
• Journal Information: J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 87:A10; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

640107* -- Astrophysics & Cosmology-- Planetary Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATMOSPHERES
ELECTRIC HEATING
HEATING
JOULE HEATING
JUPITER PLANET
MAGNETIC FIELDS
PLANETARY ATMOSPHERES
PLANETARY IONOSPHERES
PLANETARY MAGNETOSPHERES
PLANETS
PLASMA
PLASMA HEATING
RESISTANCE HEATING
ROTATING PLASMA