Sökning: onr:"swepub:oai:DiVA.org:kth-92882" >
Acceleration and St...
Acceleration and Stochastic Heating of Ions Drifting Through an Auroral Arc
-
Rothwell, P.L. (författare)
-
Silevitch, M.B. (författare)
-
- Block, Lars P (författare)
- KTH,Alfvénlaboratoriet,Rymd- och plasmafysik
-
visa fler...
-
- Fälthammar, Carl-Gunne (författare)
- KTH,Alfvénlaboratoriet,Rymd- och plasmafysik
-
visa färre...
-
(creator_code:org_t)
- 1992
- 1992
- Engelska.
-
Ingår i: Journal of Geophysical Research. - 0148-0227 .- 2156-2202. ; 97, s. 19333-19339
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- We find that ions E x B drifting through an auroral arc can undergo transverse acceleration and stochastic heating. This result is very analogous to recent work regarding similar phenomena in the magnetotail (Buchner and Zelenyi, 1990; Chen and Palmadesso, 1986; Brittnacher and Whipple, 199 1). An analytic expression for the maximum arc width for which chaotic behavior is present is derived and numerically verified. We find, for example, that a 1.5-km-thick arc at LAMBDA = 65-degrees requires a minimum potential drop of 3 kV for transverse ion acceleration and heating to occur. Thicker arcs require higher potential drops for stochasticity to occur. This mechanism could be a source for conic ions.
Ämnesord
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas