Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 34, issue 11
Articles | Volume 34, issue 11
https://doi.org/10.5194/angeo-34-943-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/angeo-34-943-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 34, issue 11
Regular paper
 | 
04 Nov 2016
Regular paper |  | 04 Nov 2016

Evidence for transient, local ion foreshocks caused by dayside magnetopause reconnection

Yann Pfau-Kempf, Heli Hietala, Steve E. Milan, Liisa Juusola, Sanni Hoilijoki, Urs Ganse, Sebastian von Alfthan, and Minna Palmroth

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Short summary
We have simulated the interaction of the solar wind – the charged particles and magnetic fields emitted by the Sun into space – with the magnetic field of the Earth. The solar wind flows supersonically and creates a shock when it encounters the obstacle formed by the geomagnetic field. We have identified a new chain of events which causes phenomena in the downstream region to eventually cause perturbations at the shock and even upstream. This is confirmed by ground and satellite observations.
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