@InProceedings{FarinasPerezCard:2015:StFoTo,
               author = "Farinas Perez, German and Cardoso, Flavia Reis",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Study of the formation and topology of flux transfer events using 
                         global numerical simulation",
                 year = "2015",
         organization = "Join Assembly",
             abstract = "We have analyzed a global magnetohydrodynamic (MHD) simulation of 
                         the magnetosphere to study the formation and magnetic topology of 
                         flux transfer events (FTEs) for reconnection during assumed 
                         interplanetary plasma and magnetic field conditions. All the 
                         interplanetary conditions have been kept constant during the 
                         simulation time. The interplanetary magnetic field (IMF) had a 
                         large southward-duskward component. The grid resolution at the 
                         subsolar magnetopause is sufficiently high to allow the formation 
                         of FTEs. We observe the spontaneous formation of FTEs under 
                         constant solar wind conditions and zero dipole tilt. Five FTEs 
                         with clear magnetic perturbations have been detected. The 
                         characteristics of these five FTEs are identified, among them, the 
                         beginning and end of their magnetic signature, sense of 
                         propagation, speed of propagation and time onset of their 
                         movement. The first, second and fourth FTEs travel northward, 
                         while the others two move southward. The bipolar BN signature and 
                         the intensification of the core magnetic field (BM) are presented 
                         in all FTEs. The sense of propagation is mainly northward-dawnward 
                         in the Northern Hemisphere and southwardduskward in the Southern 
                         Hemisphere, which is consistent with the orientation of flows for 
                         a southward-duskward IMF case. The cross section of the first FTE 
                         has been analyzed in terms of the projected magnetic field, 
                         thermal pressure and core magnetic field. The typical magnetic 
                         characteristics of a flux rope were found. However, the analysis 
                         of the magnetic topology reveals that this structure is not a 
                         typical flux rope. Instead it is formed by two interlinked flux 
                         tubes which together seem to present similar characteristics of a 
                         flux rope. The magnetic topology over the magnetopause was 
                         calculated to study the generation mechanism of this event. Flow 
                         vortices have been observed in every FTE event. The flow vortices 
                         bring together regions of different magnetic topologies, which 
                         drive subsequent processes of magnetic reconnection. This could be 
                         the cause of the increased complexity in the topology observed 
                         after the interlinked flux tubes occurrence.",
  conference-location = "Montreal, Canada",
      conference-year = "3-7 may",
             language = "en",
        urlaccessdate = "01 maio 2024"
}