The influence of field-aligned currents on auroral electron temperatures

Autor:	R.A. Jones, M.H. Rees, James C. G. Walker
Rok vydání:	1971
Předmět:	Physics Field (physics) Space and Planetary Science Electric field Electron temperature Flux Astronomy and Astrophysics Electron Ionosphere Heat sink Current (fluid) Atomic physics
Zdroj:	Planetary and Space Science. 19:313-325
ISSN:	0032-0633
DOI:	10.1016/0032-0633(71)90095-x
Popis:	A precipitating flux of auroral electrons produces a flow of reverse current to maintain electrical neutrality in the ionosphere. The transport effects associated with such a current act as heat sinks for the electron gas, resulting in auroral electron temperatures that are lower at high altitude than they would be in the absence of the current. In a typical aurora the difference approaches 1000°K above 700 km. There are electric fields associated with the parallel currents but their magnitude is only a few microvolts per meter.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d2133312e8380d5b80c2c9b6f1fe987d https://doi.org/10.1016/0032-0633(71)90095-x Zobrazit plný text záznamu