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Bjørn Lybekk
Researcher at University of Oslo
Publications - 66
Citations - 3356
Bjørn Lybekk is an academic researcher from University of Oslo. The author has contributed to research in topics: Interplanetary magnetic field & Magnetosphere. The author has an hindex of 28, co-authored 66 publications receiving 3157 citations.
Papers
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Journal ArticleDOI
The electric field and wave experiment for the cluster mission
Georg Gustafsson,Rolf Boström,B. Holback,G. Holmgren,A Lundgren,K. Stasiewicz,L. Åhlén,F. S. Mozer,David H. Pankow,Peter Harvey,Peter Berg,R Ulrich,Arne Pedersen,R. Schmidt,A Butler,A W C Fransen,D Klinge,M Thomsen,Carl-Gunne Fälthammar,Per-Arne Lindqvist,Sverker Christenson,J. A. Holtet,Bjørn Lybekk,T A Sten,P. Tanskanen,K. Lappalainen,John R. Wygant +26 more
TL;DR: The electric-field and wave experiment (EFW) on Cluster is designed to measure the electric field and density fluctuations with sampling rates up to 36000 samples s-1 as mentioned in this paper, which can also be used to determine the electron density and temperature.
Journal ArticleDOI
First results of electric field and density observations by Cluster EFW based on initial months of operation
Georg Gustafsson,Mats André,Tobia Carozzi,Anders Eriksson,Carl-Gunne Fälthammar,Réjean Grard,G. Holmgren,J. A. Holtet,Nickolay Ivchenko,Tomas Karlsson,Yuri V. Khotyaintsev,Stanislav Klimov,H. Laakso,Per-Arne Lindqvist,Bjørn Lybekk,Göran Marklund,F. S. Mozer,Kalevi Mursula,Arne Pedersen,B. Popielawska,S. Savin,K. Stasiewicz,P. Tanskanen,Andris Vaivads,Jan-Erik Wahlund +24 more
TL;DR: In this paper, the authors present studies of the electric field data from various regions along the CLUS-TER orbit. They all point towards a very high coherence for phenomena recorded on four spacecraft that are sepa- rated by a few hundred kilometers for structures over the whole range of apparent frequencies from 1 mHz to 9 kHz.
Journal ArticleDOI
Signatures in the dayside aurora of plasma transfer from the magnetosheath
TL;DR: In this paper, observations of the polar cusp/dayside oval aurora from Svalbard and simultaneous observations of nightside aurora and the interplanetary magnetic field from satellites are used to identify the ionospheric signatures of plasma transfer from the solar wind to the magnetosphere.
Journal ArticleDOI
Midday auroral breakup events and related energy and momentum transfer from the magnetosheath
Per Even Sandholt,Mike Lockwood,Takasi Oguti,Stanley W. H. Cowley,K.S.C. Freeman,Bjørn Lybekk,Alv Egeland,David M. Willis +7 more
TL;DR: In this paper, a detailed analysis of the temporal and spatial development of the midday auroral breakup phenomenon and the related ionospheric ion flow pattern within the 71°-75° invariant latitude radar field of view is presented.
Journal ArticleDOI
Electron density estimations derived from spacecraft potential measurements on Cluster in tenuous plasma regions
Arne Pedersen,Bjørn Lybekk,Mats André,Anders Eriksson,Arnaud Masson,F. S. Mozer,Per-Arne Lindqvist,P. Décréau,Iannis Dandouras,Jean-André Sauvaud,Andrew Fazakerley,M. G. G. T. Taylor,G. Paschmann,K. R. Svenes,Klaus Torkar,E. C. Whipple +15 more
TL;DR: Pedersen et al. as mentioned in this paper derived the electron density as a function of spacecraft potential over the polar caps and in the lobes of the magnetosphere, regions where other experiments on Cluster have intrinsic limitations.