Oxygen energization by localized perpendicular electric fields at the cusp boundary
2010 (English)In: Geophysical Research Letters, ISSN 0094-8276, E-ISSN 1944-8007, Vol. 37, no 9, L09103Article in journal (Refereed) Published
We report Cluster observations of oxygen energization by several keV at the boundary between the high latitude cusp and lobe. A localized electric field at the cusp/lobe boundary is responsible for a significant part of the observed energization. Such electric fields can be related to the separatrix region of reconnection at the magnetopause. Ions are accelerated as they move non-adiabatically in the spatially inhomogeneous electric field. Additional heating may be provided by low frequency waves at the oxygen gyrofrequency. Citation: Lindstedt, T., Y. V. Khotyaintsev, A. Vaivads, M. Andre, H. Nilsson, and M. Waara (2010), Oxygen energization by localized perpendicular electric fields at the cusp boundary.
Place, publisher, year, edition, pages
Washington: American Geophysical Union (AGU), 2010. Vol. 37, no 9, L09103
ion energization, high-altitude, auroral region, cluster, outflows, magnetosphere, mechanisms, dynamics, waves
IdentifiersURN: urn:nbn:se:umu:diva-43617DOI: 10.1029/2010GL043117ISI: 000277478000005OAI: oai:DiVA.org:umu-43617DiVA: diva2:414874