• Cluster and MMS simultaneous observations of magnetosheath high speed jets and their impact on the magnetopause 

      Escoubet, C. P.; Hwang, KJ; Toledo-Redondo, Sergio; Turc, Lucile; Haaland, Stein; Aunai, N; Dargent, Jeremy; Eastwood, Jonathan P.; Fear, Robert C.; Fu, H.; Genestreti, Kevin; Graham, Daniel B.; Khotyaintsev, Yuri V.; Lapenta, G.; Lavraud, Benoit; Norgren, Cecilia; Sibeck, David G.; Varsani, Ali; Berchem, J.; Dimmock, A (Journal article; Peer reviewed, 2020-01-31)
      When the supersonic solar wind encounters the Earth's magnetosphere a shock, called bow shock, is formed and the plasma is decelerated and thermalized in the magnetosheath downstream from the shock. Sometimes, however, due ...
    • Convection in the Magnetosphere-Ionosphere System: A Multimission Survey of Its Response to IMF By Reversals 

      Case, Nathan A; Grocott, Adrian; Fear, Robert C.; Haaland, Stein; Lane, J. H. (Journal article; Peer reviewed, 2020)
      Past studies have demonstrated that the interplanetary magnetic field (IMF) By component introduces asymmetries in the magnetosphere‐ionosphere (M‐I) system, though the exact timings involved are still unclear with two ...
    • The interaction between transpolar arcs and cusp spots 

      Fear, Robert C.; Milan, Steve; Carter, Jenny A.; Maggiolo, Romain (Peer reviewed; Journal article, 2015-11-25)
      Transpolar arcs and cusp spots are both auroral phenomena which occur when the interplanetary magnetic field is northward. Transpolar arcs are associated with magnetic reconnection in the magnetotail, which closes magnetic ...
    • Solar illumination control of ionospheric outflow above polar cap arcs 

      Maes, Lukas; Maggiolo, Romain; De Keyser, Johan; Dandouras, Iannis; Fear, Robert C.; Fontaine, Dominique; Haaland, Stein (Peer reviewed; Journal article, 2015-03-12)
      We measure the flux density, composition, and energy of outflowing ions above the polar cap, accelerated by quasi-static electric fields parallel to the magnetic field and associated with polar cap arcs, using Cluster. ...