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 have analyzed 124 electron bursts at energies above 0.25 MeV observed with\udthe EPHIN/COSTEP instrument onboard the SOHO spacecraft far upstream of the Earth's bow-shock\udat the libration point L1 from 1996 through 2005.\udMost of the bursts were observed during low solar activity\ud(in 1996–1997 and in 2005) and all 124 bursts were not associated with solar particle events.\udIt is shown that some upstream events are detected at energies above 0.7 MeV.\ud\ud \ud\udWe find that the event occurrence number shows a distinct seasonal variation with maxima around equinoxes and\udminima near solstices. This together with\uda close correspondence between the event occurrence number with maxima in solar wind speed (Vsw),\udgeomagnetic activity index (Ap) and in the southward interplanetary magnetic field (IMF) component (Bz)\udindicates that the observed events can be explained in terms of leakage of\udmagnetospheric particles during enhanced geoactivity rather than by acceleration at the Earth's bow-shock

COSTEP/SOHO observations of energetic electrons far upstream of the Earth's bow-shock