Plasma observations near uranus: initial results from voyager 2. Journal Article uri icon



  • Extensive measurements of low-energy positive ions and electrons in the vicinity of Uranus have revealed a fully developed magnetosphere. The magnetospheric plasma has a warm component with a temperature of 4 to 50 electron volts and a peak density of roughly 2 protons per cubic centimeter, and a hot component, with a temperature of a few kiloelectron volts and a peak density of roughly 0.1 proton per cubic centimeter. The warm component is observed both inside and outside of L = 5, whereas the hot component is excluded from the region inside of that L shell. Possible sources of the plasma in the magnetosphere are the extended hydrogen corona, the solar wind, and the ionosphere. The Uranian moons do not appear to be a significant plasma source. The boundary of the hot plasma component at L = 5 may be associated either with Miranda or with the inner limit of a deeply penetrating, solar wind-driven magnetospheric convection system. The Voyager 2 spacecraft repeatedly encountered the plasma sheet in the magnetotail at locations that are consistent with a geometric model for the plasma sheet similar to that at Earth.

publication date

  • July 1, 1986

has restriction

  • green

Date in CU Experts

  • September 3, 2013 12:02 PM

Full Author List

  • Bridge HS; Belcher JW; Coppi B; Lazarus AJ; McNutt RL; Olbert S; Richardson JD; Sands MR; Selesnick RS; Sullivan JD

author count

  • 19

citation count

  • 0

Other Profiles

International Standard Serial Number (ISSN)

  • 0036-8075

Electronic International Standard Serial Number (EISSN)

  • 1095-9203

Additional Document Info

start page

  • 89

end page

  • 93


  • 233


  • 4759