Articles | Volume 37, issue 4
Ann. Geophys., 37, 689–697, 2019
https://doi.org/10.5194/angeo-37-689-2019
Ann. Geophys., 37, 689–697, 2019
https://doi.org/10.5194/angeo-37-689-2019

ANGEO Communicates 06 Aug 2019

ANGEO Communicates | 06 Aug 2019

Jets in the magnetosheath: IMF control of where they occur

Laura Vuorinen et al.

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Cited articles

Angelopoulos, V.: The THEMIS Mission, Space Sci. Rev., 141, 5–34, https://doi.org/10.1007/s11214-008-9336-1, 2008. a
Archer, M. O. and Horbury, T. S.: Magnetosheath dynamic pressure enhancements: occurrence and typical properties, Ann. Geophys., 31, 319–331, https://doi.org/10.5194/angeo-31-319-2013, 2013. a, b, c, d, e
Archer, M. O., Horbury, T. S., and Eastwood, J. P.: Magnetosheath pressure pulses: Generation downstream of the bow shock from solar wind discontinuities, J. Geophys. Res., 117, 1–13, https://doi.org/10.1029/2011JA017468, 2012. a
Archer, M. O., Hietala, H., Hartinger, M. D., Plaschke, F., and Angelopoulos, V.: Direct observations of a surface eigenmode of the dayside magnetopause, Nat. Commun., 10, 615, https://doi.org/10.1038/s41467-018-08134-5, 2019. a
Bieber, J. W. and Stone, S. C.: Energetic electron bursts in the magnetopause electron layer and in interplanetary space, in: Magnetospheric Boundary Layers, edited by: Battrick, B., Mort, J., Haerendel, G., and Ortner, J., vol. 148 of ESA Special Publication, European Space Agency, Paris, France, 131–135, 1979. a
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Before the solar wind encounters the Earth's magnetic field, it is first slowed down and deflected by the Earth's bow shock. We find that downstream of the bow shock regions where the shock normal and the solar wind magnetic field are almost parallel and the shock is more rippled, plasma jets with high earthward velocities are observed significantly more often than elsewhere downstream of the shock. Our results help us forecast the occurrence of these jets and their effects on Earth.