English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We present Cluster and Double Star-1 (TC-1) observations from a closemagnetic conjunction on 8 May 2004. The five spacecraft were on thedawnside flank of the magnetosphere, with TC-1 located near the equatorialplane and Cluster at higher geographic latitudes in the Southern Hemisphere.TC-1, at its apogee, skimmed the magnetopause for almost 8h (between08:00-16:00 UT). Flux Transfer Events (FTEs), moving southward/tailward fromthe reconnection site, were observed by TC-1 throughout almost all of theperiod. Cluster, travelling on a mainly dawn-dusk trajectory, crossed themagnetopause at around 10:30 UT in the same Magnetic Local Time (MLT) sectoras TC-1 and remained close to the magnetopause boundary layer in theSouthern Hemisphere. The four Cluster spacecraft observed FTEs for a periodof 6.5h between 07:30 and 14:00 UT.The very clear signatures and the finite transverse sizes of the FTEsobserved by TC-1 and Cluster imply that, during this event, sporadicreconnection occurred. From the properties of these FTEs, the reconnectionsite was located northward of both TC-1 and Cluster on the dawn flank of themagnetosphere. Reconnection occurred between draped magnetosheath and closedmagnetospheric field lines. Despite variable interplanetary magnetic field(IMF) conditions and IMF-Bz turnings, the IMF clock angle remainedgreater than 70° and the location site appeared to remain relativelystable in position during the whole period. This result is in agreement withprevious studies which reported that the dayside reconnection remainedactive for an IMF clock angle greater than 70°. The simultaneousobservation of FTEs at both Cluster and TC-1, separated by 2h in MLT,implies that the reconnection site on the magnetopause must have beenextended over several hours in MLT

Simultaneous Double Star and Cluster FTEs observations on the dawnside flank of the magnetosphere