Blar i Bergen Open Research Archive på forfatter "Bower, G.E."
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Dual-Lobe Reconnection and Horse-Collar Auroras
Milan, Stephen Eric; Carter, Jennifer Alyson; Bower, G.E.; Imber, S.M.; Paxton, Larry J.; Anderson, Brian J.; Hairston, Marc; Hubert, Benoit (Journal article; Peer reviewed, 2020)We propose a mechanism for the formation of the horse-collar auroral configuration during periods of strongly northward interplanetary magnetic field (IMF), invoking the action of dual-lobe reconnection (DLR). Auroral ... -
Influence of Off-Sun-Earth Line Distance on the Accuracy of L1 Solar Wind Monitoring
Milan, Stephen Eric; Carter, J.A.; Bower, G.E.; Fleetham, A.L.; Anderson, B.J. (Journal article; Peer reviewed, 2022)Upstream solar wind measurements from near the L1 Lagrangian point are commonly used to investigate solar wind-magnetosphere coupling. The off-Sun-Earth line distance of such solar wind monitors can be large, up to 100 RE. ... -
Lobe Reconnection and Cusp-Aligned Auroral Arcs
Milan, Stephen Eric; Bower, G.E.; Carter, J.A.; Paxton, L.J.; Anderson, B.J.; Hairston, M.R. (Journal article; Peer reviewed, 2022)Following the St. Patrick's Day (17 March) geomagnetic storm of 2013, the interplanetary magnetic field had near-zero clock angle for almost two days. Throughout this period multiple cusp-aligned auroral arcs formed in the ... -
Magnetospheric Flux Throughput in the Dungey Cycle: Identification of Convection State During 2010
Milan, Stephen Eric; Carter, Jennifer Alyson; Sangha, Harneet; Bower, G.E.; Anderson, Brian J. (Journal article; Peer reviewed, 2021)We quantify the contributions of different convection states to the magnetic flux throughput of the magnetosphere during 2010. To do this we provide a continuous classification of convection state for the duration of 2010 ... -
Occurrence Statistics of Horse Collar Aurora
Bower, G.E.; Milan, Stephen Eric; Paxton, L.J.; Anderson, B.J. (Journal article; Peer reviewed, 2022)Horse collar aurora (HCA) are an auroral feature where the dawn and dusk sector auroral oval moves polewards and the polar cap becomes teardrop shaped. They form during prolonged periods of northward interplanetary magnetic ...